IBM SAN16B-2 User And Service Manual

IBM TotalStorage SAN16B-2

Installation, Service, and User’s Guide

Service information: 2005 / B16, 16B

GC26-7753-00

Read Before Using

This product contains software that is licensed under written license agreements. Your use of such software is subject to the license agreements under which they are provided.



IBM TotalStorage SAN16B-2

Installation, Service, and User’s Guide

Service information: 2005 / B16, 16 B

GC26-7753-00



Note:

Before using this information and the product it supports, read the information in “Notices” on page 43.

First Edition (August 2005)

The following paragraph does not apply to any country (or region) where such provisions are inconsistent with local law.

INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states (or regions) do not allow disclaimer of express or implied warranties in certain transactions; therefore, this statement may not apply to you.

Order publications through your IBM representative or the IBM branch office serving your locality.

US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

Contents

Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . .v

Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Safety and environmental notices . . . . . . . . . . . . . . . . .ix

Safety notices and labels . . . . . . . . . . . . . . . . . . . . .ix

Danger notices . . . . . . . . . . . . . . . . . . . . . . . .ix

Labels . . . . . . . . . . . . . . . . . . . . . . . . . . .xi

Caution notices . . . . . . . . . . . . . . . . . . . . . . . .xi

Attention notices . . . . . . . . . . . . . . . . . . . . . . . xii

Laser safety . . . . . . . . . . . . . . . . . . . . . . . . . . xii

Usage restrictions . . . . . . . . . . . . . . . . . . . . . . . xii

Rack safety . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

Rack installation . . . . . . . . . . . . . . . . . . . . . . . xiii

Rack relocation (19″ rack) . . . . . . . . . . . . . . . . . . . . xiv

Environmental notices . . . . . . . . . . . . . . . . . . . . . .xv

Product recycling and disposal . . . . . . . . . . . . . . . . . .xv

Battery return program . . . . . . . . . . . . . . . . . . . . . xvi

Cable warning . . . . . . . . . . . . . . . . . . . . . . . . xvi

About this document . . . . . . . . . . . . . . . . . . . . . xvii

Who should read this document . . . . . . . . . . . . . . . . . . xvii

Product documents . . . . . . . . . . . . . . . . . . . . . . . xvii

Brocade documents . . . . . . . . . . . . . . . . . . . . . . . xvii

IBM and Brocade product matrix . . . . . . . . . . . . . . . . . xvii

Getting help . . . . . . . . . . . . . . . . . . . . . . . . . xviii

How to send your comments . . . . . . . . . . . . . . . . . . . xviii

Chapter 1. Introducing the SAN16B-2 switch . . . . . . . . . . . . .1

Features and functions of the SAN16B-2 switch . . . . . . . . . . . . .1

Supported connectivity . . . . . . . . . . . . . . . . . . . . . .2

Switch characteristics . . . . . . . . . . . . . . . . . . . . . . .2

Port side of the SAN16B-2 switch . . . . . . . . . . . . . . . . .2

Non-port side of the SAN16B-2 switch . . . . . . . . . . . . . . . .3

Supported (optional) features . . . . . . . . . . . . . . . . . . . .3

Additional Port Activation . . . . . . . . . . . . . . . . . . . . .3

Full Fabric Activation . . . . . . . . . . . . . . . . . . . . . .3

Fabric Watch . . . . . . . . . . . . . . . . . . . . . . . . .3

Advanced Security . . . . . . . . . . . . . . . . . . . . . . .4

Performance Bundle (Performance Monitoring and ISL Trunking) . . . . . .4

Chapter 2. Installing and configuring the SAN16B-2 . . . . . . . . . .7

Items included with the switch . . . . . . . . . . . . . . . . . . . .7

Installation and safety considerations . . . . . . . . . . . . . . . . .8

Facility requirements . . . . . . . . . . . . . . . . . . . . . .8

Electrical requirements . . . . . . . . . . . . . . . . . . . . .9

Environmental requirements and considerations . . . . . . . . . . . .9

Installing a stand-alone SAN16B-2 . . . . . . . . . . . . . . . . . .9

Installing a SAN16B-2 into an EIA cabinet . . . . . . . . . . . . . . .10

Time required . . . . . . . . . . . . . . . . . . . . . . . .10

Items required . . . . . . . . . . . . . . . . . . . . . . . .10

Installation instructions . . . . . . . . . . . . . . . . . . . . .10

Cabling and configuring the SAN16B-2 . . . . . . . . . . . . . . . .16

Recommendations for cable management . . . . . . . . . . . . . .16

Items required for installation . . . . . . . . . . . . . . . . . . .16

Configuring the SAN16B-2 . . . . . . . . . . . . . . . . . . .16

Verifying the configuration . . . . . . . . . . . . . . . . . . . .20

Backing up the configuration . . . . . . . . . . . . . . . . . . .20

Chapter 3. Operating the SAN16B-2 . . . . . . . . . . . . . . . .21

Powering the SAN16B-2 on and off . . . . . . . . . . . . . . . . .21

Interpreting LED activity . . . . . . . . . . . . . . . . . . . . .21

LED location . . . . . . . . . . . . . . . . . . . . . . . . .21

LED patterns and recommended actions . . . . . . . . . . . . . .22

POST and boot specifications . . . . . . . . . . . . . . . . . . .25

POST . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Boot . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Interpreting POST results . . . . . . . . . . . . . . . . . . . . .26

Chapter 4. Monitoring and maintaining the SANB16-2 . . . . . . . . .27

Management features of the SANB16-2 . . . . . . . . . . . . . . . .27

Maintaining the SANB16-2 . . . . . . . . . . . . . . . . . . . .27

Diagnostic tests . . . . . . . . . . . . . . . . . . . . . . .27

Installing, removing, and testing SFPs . . . . . . . . . . . . . . . .28

Installing an SFP . . . . . . . . . . . . . . . . . . . . . . .29

Removing SFP modules . . . . . . . . . . . . . . . . . . . .32

Appendix A. Product specifications . . . . . . . . . . . . . . . .37

Data transmission ranges . . . . . . . . . . . . . . . . . . . . .37

Fibre Channel port specifications . . . . . . . . . . . . . . . . . .37

Serial port specifications . . . . . . . . . . . . . . . . . . . . .37

Power supply specifications . . . . . . . . . . . . . . . . . . . .38

Weight and physical dimensions . . . . . . . . . . . . . . . . . .39

Memory specifications . . . . . . . . . . . . . . . . . . . . . .39

System general specifications . . . . . . . . . . . . . . . . . . .39

Appendix B. Power cord information . . . . . . . . . . . . . . . .41

Types of plugs . . . . . . . . . . . . . . . . . . . . . . . . .42

Notices . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . .45

Electronic emission notices . . . . . . . . . . . . . . . . . . . .45

Federal Communications Commission (FCC) Class A Statement . . . . .45

Industry Canada Class A Emission Compliance Statement . . . . . . . .45

Avis de conformité à la réglementation d’Industrie Canada . . . . . . . .46

European Union (EU) Electromagnetic Compatibility Directive . . . . . . .46

Germany Electromagnetic Compatibility Directive . . . . . . . . . . .46

People’s Republic of China Class A Electronic Emission Statement . . . .47

Japan VCCI Class A ITE Electronic Emission Statement . . . . . . . . .47

Korea Class A Electronic Emission Statement . . . . . . . . . . . .47

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

iv SAN16B-2 Installation, Service, and User’s Guide

Figures

1. Port side of the SANB16-2 switch . . . . . . . . . . . . . . . . . . . . . . . . .3

2. Trunking groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

3. Rack assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

4. Separating the inner and outer rails. . . . . . . . . . . . . . . . . . . . . . . . .12

5. Mounting the moving portion of the slide and mounting brackets to the switch . . . . . . . .13

6. Mounting the fixed portion of the rail and the locking ears to the rack . . . . . . . . . . .14

7. Inserting slides into the rack rails . . . . . . . . . . . . . . . . . . . . . . . . .15

8. SAN16B-2 port side details . . . . . . . . . . . . . . . . . . . . . . . . . . .17

9. LEDs on the port side of the SAN16B-2 . . . . . . . . . . . . . . . . . . . . . .22

10. SFP plastic tab variety . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

11. SFP wire bale variety . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

12. Removing the protective cap from a plastic tab type SFP . . . . . . . . . . . . . . . .29

13. Removing the protective cap from a wire bale type SFP . . . . . . . . . . . . . . . .29

14. Installing a plastic tab type SFP . . . . . . . . . . . . . . . . . . . . . . . . .30

15. Installing a wire bale type SFP . . . . . . . . . . . . . . . . . . . . . . . . . .30

16. Locking wire bale SFP in place . . . . . . . . . . . . . . . . . . . . . . . . .31

17. Removing the caps from fiber-optic cables . . . . . . . . . . . . . . . . . . . . .31

18. Inserting a fiber-optic cable into an SFP module . . . . . . . . . . . . . . . . . . .32

19. Fiber-optic cable lever and latches . . . . . . . . . . . . . . . . . . . . . . . .32

20. Removing a fiber-optic cable . . . . . . . . . . . . . . . . . . . . . . . . . .33

21. Unlocking the SFP module latch, plastic tab type . . . . . . . . . . . . . . . . . . .33

22. Removing an SFP module, plastic tab type . . . . . . . . . . . . . . . . . . . . .34

23. Unlocking the SFP module latch, wire bale type . . . . . . . . . . . . . . . . . . .35

24. Types of plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

vi SAN16B-2 Installation, Service, and User’s Guide

Tables

1. Brocade and IBM product and model number matrix . . . . . . . . . . . . . . . . . xviii

2. Facility requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

3. Environmental requirements . . . . . . . . . . . . . . . . . . . . . . . . . . .9

4. Parts supplied with the rack-mount kit . . . . . . . . . . . . . . . . . . . . . . .11

5. Example of changing an IP address . . . . . . . . . . . . . . . . . . . . . . . .18

6. System LED patterns during normal operation . . . . . . . . . . . . . . . . . . . .23

7. Port LED patterns during normal operation . . . . . . . . . . . . . . . . . . . . .24

8. Ethernet LED patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

9. Management options for the switch . . . . . . . . . . . . . . . . . . . . . . . .27

10. Laser data transmission ranges . . . . . . . . . . . . . . . . . . . . . . . . .37

11. SAN16B-2 power supply specifications . . . . . . . . . . . . . . . . . . . . . . .38

12. Switch specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

13. Memory specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

14. General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

15. Power cord information . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

viii SAN16B-2 Installation, Service, and User’s Guide

Safety and environmental notices

This section contains information about:

v “Safety notices and labels” v “Laser safety” on page xii v “Rack safety” on page xiii v “Environmental notices” on page xv

Safety notices and labels

When using this product, observe the danger, caution, and attention notices contained in this guide. The notices are accompanied by symbols that represent the severity of the safety condition. The danger and caution notices are listed in numerical order based on their IDs, which are displayed in parentheses, for example (D004), at the end of each notice. Use this ID to locate the translation of these danger and caution notices in the IBM eServer Safety Notices (G229–9054) publication, which is on the CD-ROM that accompanies this product. See the following examples of danger and caution notices for the location of the ID number.

The following sections define each type of safety notice and provide examples.

The following notices and statements are used in IBM

documents. They are listed below in order of increasing severity of potential hazards. Follow the links for more detailed descriptions and examples of the danger, caution, and attention notices in the sections that follow.

v Note: These notices provide important tips, guidance, or advice. v “Attention notices” on page xii: These notices indicate potential damage to

programs, devices, or data.

v “Caution notices” on page xi: These statements indicate situations that can be

potentially hazardous to you.

v “Danger notices”: These statements indicate situations that can be potentially

lethal or extremely hazardous to you. Safety labels are also attached directly to products to warn of these situations.

v In addition to these notices, “Labels” on page xi may be attached to the product

to warn of potential hazards.

Danger notices

A danger notice calls attention to a situation that is potentially lethal or extremely hazardous to people. A lightning bolt symbol accompanies a danger notice to represent a dangerous electrical condition. A sample danger notice follows.

DANGER

electrical outlet that is not correctly wired could place

hazardous voltage on metal parts of the system or the devices that attach to the system. It is the responsibility of the customer to ensure that the outlet is correctly wired and grounded to prevent an electrical shock. (D004)

A comprehensive danger notice provides instructions on how to avoid shock hazards when servicing equipment. Unless instructed otherwise, follow the procedures in the following danger notice.

DANGER

Electrical

voltage and current from power, telephone, and

communication cables are hazardous.

To avoid a shock hazard:

v Do not connect or disconnect any cables or perform

installation, maintenance, or reconfiguration of this product during an electrical storm.

v Connect all power cords to a properly wired and grounded

electrical outlet. Ensure outlet supplies proper voltage and phase rotation according to the system rating plate.

v Connect any equipment that will be attached to this product to

properly wired outlets.

v When possible, use one hand only to connect or disconnect

signal cables.

v Never turn on any equipment when there is evidence of fire,

water, or structural damage.

v Disconnect the attached power cords, telecommunications

systems, networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures.

v Connect and disconnect cables as described below when

installing, moving, or opening covers on this product or attached devices.

Disconnect:

1. Turn everything OFF (unless instructed otherwise).

2. Remove power cords from the outlet.

3. Remove signal cables from connectors.

4. Remove all cables from devices.

Connect:

1. Turn everything OFF (unless instructed otherwise).

2. Attach all cables to devices.

3. Attach signal cables to connectors.

4. Attach power cords to outlet.

5. Turn device ON.

(D005)

x SAN16B-2 Installation, Service, and User’s Guide

Labels

As an added precaution, safety labels are often installed directly on products or product components to warn of potential hazards.

The actual product safety labels may differ from these sample safety labels:

DANGER

Hazardous

voltage, current, or energy levels are present

inside any component that has this label attached. (L001)

Do not service, there are no serviceable parts.

DANGER

Multiple

power cords (L003)

To remove all power to the device, disconnect all power cords.

Caution notices

A caution notice calls attention to a situation that is potentially hazardous to people because of some existing condition. A caution notice can be accompanied by different symbols, as in the examples below:

If the symbol is... It means....

A hazardous electrical condition with less severity than electrical danger.

A generally hazardous condition not represented by other safety symbols.

A hazardous condition due to the use of a laser in the product. Laser symbols are always accompanied by the classification of the laser as defined by the U. S. Department of Health and Human Services (for example, Class I, Class II, and so forth).

Sample caution notices:

CAUTION: This product is equipped with a 3–wire (two conductors and ground) power cable and plug. Use this power cable with a properly grounded electrical outlet to avoid electrical shock. (C018)

CAUTION: Data processing environments can contain equipment transmitting on system links with laser modules that operate at greater than Class 1 power levels. For this reason, never look into the end of an optical fiber cable or open receptacle. (C027)

Safety and environmental notices xi

Attention notices

An attention notice indicates the possibility of damage to a program, device, or system, or to data. An exclamation point symbol may accompany an attention notice, but is not required. A sample attention notice follows:

Attention: Do not bend a fibre cable to a radius less than 5 cm (2 in.);

you can damage the cable. Tie wraps are not recommended for optical cables because they can be easily overtightened, causing damage to the cable.

Laser safety

This equipment contains Class 1 laser products, and complies with FDA radiation Performance Standards, 21 CFR Subchapter J and the international laser safety standard IEC 825-2.

Attention: In the United States, use only SFP or GBIC optical transceivers that

comply with the FDA radiation performance standards, 21 CFR Subchapter J. Internationally, use only SFP or GBIC optical transceivers that comply with IEC standard 825–1. Optical products that do not comply with these standards may product light that is hazardous to the eyes.

Usage restrictions

The optical ports of the modules must be terminated with an optical connector or with a dust plug.

xii SAN16B-2 Installation, Service, and User’s Guide

Rack safety

Rack installation

DANGER

Always lower the leveling pads on the rack cabinet.

v Always install stabilizer brackets on the rack cabinet.

v To avoid hazardous conditions due to uneven mechanical

loading, always install the heaviest devices in the bottom of the rack cabinet. Always install servers and optional devices starting from the bottom of the rack cabinets.

v Rack-mounted devices are not to be used as a shelf or work

space. Do not place any object on top of rack-mounted devices.

v Each rack cabinet might have more than one power cord. Be

sure to disconnect all power cords in the rack cabinet before servicing any device in the rack cabinet.

v Connect all devices installed in a rack cabinet to power

devices installed in the same rack cabinet. Do not plug a power cord from a device installed in one rack cabinet into a power device installed in a different rack cabinet.

CAUTION:

v Do not install a unit in a rack where the internal rack ambient

temperatures will exceed the manufacturer’s recommended ambient temperature for all your rack-mounted devices.

v Do not install a unit in a rack where the air flow is compromised.

Ensure that air flow is not blocked or reduced on any side, front, or back of a unit used for air flow through the unit.

v Consideration should be given to the connection of the

equipment to the supply circuit so that overloading of the circuits does not compromise the supply wiring or overcurrent protection.

v To provide the correct power connection to a rack, refer to the

rating labels located on the equipment in the rack to determine the total power requirement of the supply circuit.

v (For sliding drawers.) Do not pull out or install any drawer or

feature if the rack stabilizer brackets are not attached to the rack. Do not pull out more than one drawer at a time. The rack may become unstable if you pull out more than one drawer at a time.

v (For fixed drawers.) This drawer is a fixed drawer and should not

be moved for servicing unless specified by manufacturer. Attempting to move the drawer partially or completely out of the rack may cause the rack to become unstable or cause the drawer to fall out of the rack.

(R001)

Safety and environmental notices xiii

Rack relocation (19″ rack)

CAUTION: Removing components from the upper positions in the rack cabinet improves rack stability during relocation. Follow these general guidelines whenever you relocate a populated rack cabinet within a room or building:

v Reduce the weight of the rack cabinet by removing equipment starting at

the top of the rack cabinet. When possible, restore the rack cabinet to the configuration of the rack cabinet as you received it. If this configuration is not known, you must do the following:

– Remove all devices in the 32U position and above.

– Ensure that the heaviest devices are installed in the bottom of the rack

cabinet.

– Ensure that there are no empty U-levels between devices installed in the

rack cabinet below the 32U level.

– If the rack cabinet you are relocating is part of a suite of rack cabinets,

detach the rack cabinet from the suite.

– Inspect the route that you plan to take when moving the rack to

eliminate potential hazards.

– Verify that the route that you choose can support the weight of the

loaded rack cabinet. Refer to the documentation that came with your rack cabinet for the weight of a loaded rack cabinet.

– Verify that all door openings are at least 760 x 2030 mm (30 x 80 in.).

– Ensure that all devices, shelves, drawers, doors, and cables are secure.

– Ensure that the four leveling pads are raised to their highest position.

– Ensure that there is no stabilizer bracket installed on the rack cabinet

during movement.

– Do not use a ramp inclined at more than ten degrees.

– Once the rack cabinet is in the new location, do the following:

- Lower the four leveling pads.

- Install stabilizer brackets on the rack cabinet.

- If you removed any devices from the rack cabinet, repopulate the rack cabinet from the lowest position to the highest position.

– If a long distance relocation is required, restore the rack cabinet to the

configuration of the rack cabinet as you received it. Pack the rack cabinet in the original packaging material, or equivalent. Also, lower the leveling pads to raise the casters off of the pallet and bolt the rack cabinet to the pallet.

(R002)

xiv SAN16B-2 Installation, Service, and User’s Guide

Environmental notices

Use the environmental statements and warning in this section to guide you when using this product and in properly disposing of the product and its components.

Product recycling and disposal

This unit must be recycled or discarded according to applicable local and national regulations. IBM encourages owners of information technology (IT) equipment to responsibly recycle their equipment when it is no longer needed. IBM offers a variety of product return programs and services in several countries to assist equipment owners in recycling their IT products. Information on IBM product recycling offerings can be found on IBM’s Internet site at http://www.ibm.com/ibm/environment/products/prp.shtml

Note: This mark applies only to countries within the European Union (EU) and

Norway.

Appliances are labeled in accordance with European Directive 2002/96/EC concerning waste electrical and electronic equipment (WEEE). The Directive determines the framework for the return and recycling of used appliances as applicable throughout the European Union. This label is applied to various products to indicate that the product is not to be thrown away, but rather reclaimed upon end of life per this Directive.

In accordance with the European WEEE Directive, electrical and electronic equipment (EEE) is to be collected separately and to be reused, recycled, or recovered at end of life. Users of EEE with the WEEE marking per Annex IV of the WEEE Directive, as shown above, must not dispose of end of life EEE as unsorted municipal waste, but use the collection framework available to customers for the return, recycling and recovery of WEEE. Customer participation is important to minimize any potential effects of EEE on the environment and human health due to the potential presence of hazardous substances in EEE. For proper collection and treatment, contact your local IBM representative.

Safety and environmental notices xv

Battery return program

This product may contain sealed lead acid, nickel cadmium, nickel metal hydride, lithium, or lithium ion battery. Consult your user manual or service manual for specific battery information. The battery must be recycled or disposed of properly. Recycling facilities may not be available in your area. For information on disposal of batteries outside the United States, go to http://www.ibm.com/ibm/environment/products/batteryrecycle.shtml or contact your local waste disposal facility.

In the United States, IBM has established a return process for reuse, recycling, or proper disposal of used IBM sealed lead acid, nickel cadmium, nickel metal hydride, and other battery packs from IBM equipment. For information on proper disposal of these batteries, contact IBM at 1-800-426-4333. Please have the IBM part number listed on the battery available prior to your call.

For Taiwan:

Cable warning

WARNING: Handling the cord on this product or cords associated

with accessories sold with this product, will expose you to lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.

xvi SAN16B-2 Installation, Service, and User’s Guide

About this document

This document describes how to install, service, and use the IBM TotalStorage

SAN16B-2 SAN Switch (2005 Models B16 and 16B). Throughout this document, the product is referred to as the SAN16B-2 , or simply the switch to apply to both models. If information applies to only one model, the model will be specified as the B16 or the 16B.

The sections that follow provide information about:

v “Who should read this document” v “Product documents” v “Brocade documents” v “Getting help” on page xviii v “How to send your comments” on page xviii

Who should read this document

This document is intended for clients who are responsible for installing, servicing, and using the SAN16B-2 SAN switches.

Product documents

The following documents contain information related to this product: v IBM TotalStorage SAN16B-2 Installation, Service, and User’s Guide, GC26-7753

(this document)

v IBM eServer Safety Notices, G229–9054 v IBM TotalStorage SAN b-type 2005 Statement of Limited Warranty, GC26–7654

Brocade documents

IBM b-type switches use software licensed from Brocade Communications Systems, Inc. Yo u can find information related to the software that supports the director in the following documents on the CD-ROM supplied with this product:

Brocade Fabric OS

v Brocade Fabric OS Administrator’s Guide

v Brocade Fabric OS Command Reference Manual

v Brocade Fabric OS MIB Reference Manual

v Brocade Fabric OS System Error Message Reference Manual

Brocade Fabric OS optional features

v Brocade Fabric Watch Administrator’s Guide

v Brocade Secure Fabric OS User’s Guide

v Brocade Web Tools Administrator’s Guide

IBM and Brocade product matrix

When you use any of the Brocade documents, you will notice that the model numbers reflect the original Brocade switches. Table 1 on page xviii provides a product matrix for you to use to correlate the Brocade model numbers to the IBM product names and machine types and model numbers. Note that a number of

these products are no longer marketed by IBM or Brocade.

Table 1. Brocade and IBM product and model number matrix

Brocade product name

IBM TotalStorage product name

IBM product and model number

SilkWorm AP7420 SAN16B-R multiprotocol router 2109 Model A16 SilkWorm 200E SAN16B-2 2005 Models B16 and 16B SilkWorm 3250 SAN Switch H08 2005 Model H08 SilkWorm 3800 SAN Switch F16 2109 Model F16 SilkWorm 3850 SAN Switch H16 2005 Model H16 SilkWorm 3900 SAN Switch F32 2109 Model F32 SilkWorm 4100 SAN32B-2 2005 Models B32 and 32B SilkWorm 12000 SAN Switch M12 2109 Model M12 SilkWorm 24000 SAN Switch M14 2109 Model M14 SilkWorm 48000 SAN256B Director 2109 Model M48

Getting help

For the latest version of your product documentation, visit the web at http://www.elink.ibmlink.ibm.com/public/applications/publications/cgibin/pbi.cgi.

For more information about IBM SAN products, see the following Web site: http://www.ibm.com/servers/storage/san/

For support information for this product and other SAN products, see the following Web site: http://www.ibm.com/servers/storage/support/san

For detailed information about the Fibre Channel standards, see the Fibre Channel Industry Association (FCIA) Web site at: www.fibrechannel.org/

Visit www.ibm.com/contact for the contact information for your country or region.

You can also contact IBM within the United States at 1-800-IBMSERV (1-800-426-7378). For support outside the United States, you can find the service number at: http://www.ibm.com/planetwide/.

How to send your comments

Your feedback is important in helping us provide the most accurate and high-quality information. If you have comments or suggestions for improving this document, send us your comments by e-mail to starpubs@us.ibm.com or use the Readers’ Comments form at the back of this publication. Be sure to include the following:

v Exact publication title v Form number (for example, GC26-1234-02) v Page numbers to which you are referring

the Reader Comment Form in the back of this manual is missing, you can direct

your mail to:

xviii SAN16B-2 Installation, Service, and User’s Guide

International Business Machines Corporation Information Development Department GZW 9000 South Rita Road Tucson, Arizona 85744-0001 U.S.A.

When you send information to IBM, you grant IBM a nonexclusive right to use or distribute the information in any way it believes appropriate without incurring any obligation to you.

About this document xix

xx SAN16B-2 Installation, Service, and User’s Guide

Chapter 1. Introducing the SAN16B-2 switch

The IBM TotalStorage SAN16B-2 fabric switch provides a 16–port addition to the IBM TotalStorage SAN b-type 4 Gbps switch family. This family of products provide enhancements to storage networking with improved affordability, higher throughput, and increased port density.

The SAN16B-2 switch provides 4 gigabit throughput capability to small and mid-range Storage Area Networks (SANs). The switch is a 1U Fibre Channel switch which is scalable in 8–, 12–, and 16–port increments. The 16 non-blocking ports provide full-duplex throughput at 1, 2, or 4 Gbps link speeds. This switch includes Fabric OS 5.0, and features full compatibility with all existing IBM TotalStorage b-SAN switch models. The switch can operate in a fabric containing multiple switches, or operate independently.

This chapter provides the following information:

v “Features and functions of the SAN16B-2 switch” v “Supported connectivity” on page 2 v “Switch characteristics” on page 2 v “Supported (optional) features” on page 3

Features and functions of the SAN16B-2 switch

The switch provides the following features and functions:

v 4 gigabit per second port-to-port throughput with auto-sensing capability for

connecting to existing 1-, 2-, and 4-gigabit host servers, storage, and switches

v 1U form factor for enhanced port density and space utilization v 16 non-blocking ports with full-duplex throughput at 1–, 2–, or 4–Gbps link

speeds

v High availability features: automatic path routing, and nondisruptive firmware

upgrades

v Scalable ports on demand: 8–, 12–, or 16–port increments to accommodate a

broad range of connectivity solutions

v Support for 2– and 4–gigabit short wave and long wave small form-factor

pluggable (SFP) optical transceivers

v Open Fibre Channel Protocol (FCP) support v Base firmware features: Web Tools and Advanced Zoning. v Optional features:

– Additional Port Activation – Fabric Watch – Advanced Security – Enhanced ISL Trunking – Performance Monitoring

Supported connectivity

Specific details on supported operating systems, servers, and devices, storage products attachability, SAN connectivity products, and configuration options are available at the following web site: http://www.ibm.com/totalstorage/san/b-type.

The switch supports Fibre Channel connectivity for the following:

Servers

v IBM eServer

™

pSeries

and selected RS/6000

servers

v IBM eServer iSeries

™

and selected AS/400

servers

v IBM eServer xSeries

and selected Netfinity

servers

v Other Intel-based servers with Linux

™

and Windows

2000 and Windows 2003

Server

v Selected Sun and HP servers

Storage

Systems

v IBM TotalStorage DS4000 Series v IBM TotalStorage DS6000 Series v IBM TotalStorage DS8000 Series v IBM TotalStorage FAStT Family of Storage Servers v IBM TotalStorage Enterprise Storage Server

(ESS)

v IBM TotalStorage SAN Volume Controller v IBM TotalStorage 3580, 3588, 3590 and 3592 Tape Drives v IBM TotalStorage 3494, 3582, 3583, and 3584 Tape Libraries v IBM TotalStorage 3581 Tape Autoloader v IBM TotalStorage 3584 High Availability Frame Model HA1 v Other selected storage systems

Switch characteristics

The following sections describe the physical characteristics of the switch.

Port side of the SAN16B-2 switch

Figure 1 on page 3 shows the port side of the switch. The serial port, Ethernet port, and the Fibre Channel ports are all located on this side of the switch. All LEDs are also located on the port side of the switch. These LEDs display the system status, power status, port status, and port speed. See “Interpreting LED activity” on page 21 for a complete description of the locations and interpretations of these LEDs.

The switch enclosure has forced-air cooling, with the fans pushing the air from the non-port side of the chassis through the enclosure, and exhausting through the holes on the port side. Three dual speed fans provide the cooling for the switch.

2 SAN16B-2 Installation, Service, and User’s Guide

1 AC power receptacle 2 Ethernet port 3 Serial port 4 Fibre Channel ports (16)

Non-port side of the SAN16B-2 switch

The non-port side of the switch is used solely for air flow and for serial number labels. The three built-in fans are located on this side of the switch. These fans cannot be removed or replaced.

Supported (optional) features

The switch supports the following optional software, which can be activated with the purchase of the corresponding license key.

v “Additional Port Activation” v “Full Fabric Activation” v “Fabric Watch” v “Advanced Security” on page 4 v “Performance Bundle (Performance Monitoring and ISL Trunking)” on page 4

Additional Port Activation

The base switch model provides the first eight ports (0 through 7) enabled. Additional 4–port activation enables an upgrade to 12 and 16 ports. Customers can optionally purchase port activation for ports eight to eleven (first four-port increment), and ports twelve to fifteen (second four-port increment). Port activation features do not include fiber optic transceivers.

Full Fabric Activation

Full Fabric Activation is required to enable E_Ports. The switch, by default, cannot be connected to another switch until Full Fabric is installed. Without this license activation, the switch can be directly connected to hosts and storage devices. Full Fabric is a prerequisite to Advanced Security Activation and Performance Bundle Activation.

Fabric Watch

Fabric Watch enables real-time proactive awareness of the health, performance, and security of each switch and automatically alerts network managers to problems in order to avoid costly failures. Fabric Watch includes the following functions:

v Real-time tracking of numerous fabric and switch elements

scale: 5/16" = 1"

IOIOI

0 4

3 7

152

8 12

11 15

91310

b1600007

Figure 1. Port side of the SANB16-2 switch

Chapter 1. Introducing the SAN16B-2 switch 3

v Automatic event notifications when switch and fabric elements exceed thresholds v Security, availability, and congestion monitoring thresholds and alerts

Advanced Security

Advanced Security Activation is designed to enables policy-based security mechanisms integrated within Fabric Operating System V2.6, and later. To enable advanced security capabilities, all switches within the IBM SAN Switch Fabric must be configured with their respective Fabric operating system version (2.6 or later) before activating the Advanced Security feature license key. When activated across the IBM SAN Switch Fabric, the Advanced Security Activation feature supports the following security capabilities:

v Centralized security management (trusted switches) v Fabric-wide security policies to control access v Port-level access control v Switch-level access control v Management access controls (Telnet, SNMP, HTTP, API) v Encryption of management data such as passwords v Strong and non-reputable authentication between switches

Performance Bundle (Performance Monitoring and ISL Trunking)

Performance Bundle Activation is a plant order only feature consisting of both Enhanced Inter-Switch Link (ISL) Trunking and Performance Monitoring capabilities. Activation of either feature can be ordered separately for field installation.

Performance Monitoring helps identify end-to-end bandwidth usage by host/target pairs and is designed to provide information for capacity planning. Trunking enables Fibre Channel packets to be efficiently distributed across multiple Inter-Switch connections (links) between two SAN b-type fabric switches, while preserving in-order delivery. Both SAN b-type fabric switches must have ISL Trunking activated.

ISL Trunking

Enhanced ISL Trunking is supported between two SAN16B-2, SAN32B-2, or SAN256B 4-Gbps models and enables Fibre Channel packets to be distributed across up to eight 4 Gbps-capable ISLs for a combined bandwidth of up to 32 Gbps. When connecting the 4 Gbps-capable switches to earlier 2-Gbps b-type fabric switch models, ISL Trunking is supported with link speeds operational at 2 Gbps and Fibre Channel packets distributed across up to four ISLs for a combined bandwidth of up to 8 Gbps.

If your switch is licensed for ISL Trunking, use the trunking groups available on the switch. For the SAN16B-2, the maximum number of ports per trunk is four. The Fibre Channel ports are numbered from left to right, color-coded into groups of four to indicate the groups of ports that can be used in the same interswitch link (ISL) trunking group. The number of trunked lines can be from two through four ports within a single trunk group. The trunk groups are shown in Figure 2 on page 5.

4 SAN16B-2 Installation, Service, and User’s Guide

Trunking group Port numers

Group 1 Ports 0–3 Group 2 Ports 4–7 Group 3 Ports 8–11 Group 4 Ports 12–15

Note: For more information about trunking, refer to the Brocade Fabric OS

Administrator’s Guide.

0 4

3 7

152

11 15

91310

Trunking Group 1 Trunking Group 2

Trunking Group 3 Trunking Group 4

h1600002

Figure 2. Trunking groups

Chapter 1. Introducing the SAN16B-2 switch 5

6 SAN16B-2 Installation, Service, and User’s Guide

Chapter 2. Installing and configuring the SAN16B-2

You can install the SAN16B-2 in either of two ways:

v As a stand-alone unit on a flat surface v In an Electronic Industries Association (EIA) cabinet using a slide-rail rack mount

kit, which is provided with the switch. When you mount the switch into a slide-rail rack, you can mount the chassis to slide from either the port side or the non-port side.

This

chapter provides the following information:

v “Items included with the switch” v “Installation and safety considerations” on page 8 v “Installing a stand-alone SAN16B-2” on page 9 v “Installing a SAN16B-2 into an EIA cabinet” on page 10 v “Cabling and configuring the SAN16B-2” on page 16

Items included with the switch

The following items are included with the standard shipment of the switch . When you open the packaging, verify that these items are included in the package and that no damage occurred during shipping.

v One SAN16B-2 switch v An accessory kit that contains the following items:

– One grounded 1.8 m (6 ft) country-specific power cables – One RS–232 serial cable (with removable adapter for converting to an RJ-45

connector)

– Four rubber mounting feet, required for setting up the switch as a stand-alone

unit

– One slide-rail rack mount kit, with instructions – SFP transceivers (quantity depending upon features ordered) – SAN16B-2 Installation, Service, and User’s Guide (this document). – IBM documentation CD

Installation and safety considerations

Use this section to prepare your site for a safe and successful installation.

Attention: Although the switch has been designed for customer installation and

replacement procedures, you must first ensure that the rack into which the switch is to be installed is also customer accessible. If it is not, then only trained personnel can install and service these switches in such a rack.

Attention: Read the “Safety and environmental notices” on page ix

before attempting any installation or maintenance procedures.

Facility requirements

To ensure correct operation of the switch, the facility where the switch is in use must meet the requirements listed in Table 2.

Table 2. Facility requirements

Type Requirements

Thermal

v A minimum air flow of 40.1 cubic meters

per hour (24 cubic feet per minute) available in the immediate vicinity of the switch

v Ambient air temperature not exceeding

40°C (104°F) while the switch is operating

Cabinet (when rack-mounted)

v A minimum of one EIA unit (4.45 cm; 1.75

inches) high in a 19-in. (48.3 cm.) cabinet , and at least 30 inches (76.2 cm) deep.

v Ground all equipment in the cabinet

through a reliable branch circuit connection and maintain ground at all times. Do not rely on a secondary connection to a branch circuit, such as a power strip.

v Ensure that airflow and temperature

requirements are met on an ongoing basis, particularly if the switch is installed in a closed or multicabinet assembly.

v Verify that the additional weight of the

switch does not exceed the cabinet's weight limits or unbalance the cabinet in any way.

v Cabinet must be secured to insure stability

in case of unexpected movement, such as an earthquake

8 SAN16B-2 Installation, Service, and User’s Guide

Electrical requirements

For successful installation and operation of the switch, ensure that the following electrical requirements are met.

v Primary ac input 100-240 V ac (the switch autosenses input voltage) v Correctly wired primary outlet, with circuit protected by a circuit breaker and

grounded in accordance with local electrical codes

v Adequate supply circuit, line fusing, and wire size, as specified by the electrical

rating on the switch nameplate

Environmental requirements and considerations

To ensure proper operation, the switch must not be subjected to environmental conditions beyond those for which it was tested. The ranges specified in Table 3 list the acceptable environment for both operating and non-operating conditions.

Table 3. Environmental requirements

Condition Acceptable range during operation Acceptable range during

non-operation

Temperature -10° to + 40° C (14° to 104° F) -50° to 100° C (-22° to 212° F) Humidity 20% to 85% RH non-condensing, at 40°

C (104° F), with maximum gradient of 10% per hour

10% to 85% RH non-condensing, at 70° C (158° F)

Altitude 0 to 3,000 m (9,800 ft) above sea level 0 to 12 km (39,370 ft) above sea

level

Shock 20 G, 6 ms duration, half-sine wave 15 G, 12–18 ms duration,

trapezoid Vibration 0.5 G, 5–500 Hz 2.0 G, 5–500 Hz Air flow 40.1 cubic meters per hour (24 cubic feet

per minute)

None required

Installing a stand-alone SAN16B-2

To install the switch as a stand-alone unit, use the following procedure:

1. Unpack the switch and verify that all items listed in “Items included with the switch” on page 7 are present and undamaged.

Note:

If any items are damaged or missing, contact the IBM Quality Hotline

toll-free at 1-800-442-6773 within the United States and Canada, or direct dial 770-858-8459 in other locations.

2. Clean the four corner depressions on the bottom of the switch enclosure, place an adhesive rubber foot in each one, and firmly press into place. Applying the rubber feet onto the switch helps prevent the switch from sliding off the supporting surface.

3. Place the switch on a flat, sturdy surface.

4. Provide power to the switch as described in “Powering up the switch and logging in” on page 18.

Attention: Do not connect the switch to the network until the IP address is

correctly set. For instructions on how to cable and configure the switch, and how to set the IP address, see “Cabling and configuring the SAN16B-2” on page 16.

Chapter 2. Installing and configuring the SAN16B-2 9

Installing a SAN16B-2 into an EIA cabinet

Attention: Refer to “Rack safety” on page xiii for danger and caution notices

related to rack and cabinet installations.

You can install the rack mount kit in either of two ways:

v To allow the port side of the switch to slide out of the exhaust-air side of the

cabinet. In this installation, the port side of the switch is flush with the edge of the cabinet.

v To allow the non-port side of the switch to slide out the cool-air side of the

cabinet. In this installation, the port side of the switch is set 3 in. (7.62 cm.) back from the edge of the cabinet, allowing a more gradual bend in the fiber optic cables.

Time required

Approximately 30 minutes

Items required

You need the following items to install the switch in a slide-rail rack:

v Straight slot screwdriver v Rack space: 1.5 EIA units of rack space, 48.26 cm (19 in.) wide, and 60.96 cm

(24 in.) deep

v Two power cables that are provided with the switch v Two power outlets v Rack mount kit

Attention: Use the exact screws specified in the procedure for use with the

switch chassis. Using screws longer than 3/16 in. can damage the switch. The different types of screws are listed in Table 4 on page 11.

Note:

Make sure that you tighten all screws used in this procedure.

Installation instructions

To install the switch in a slide-rail rack that meets EIA standards, use the following procedure.

Note: These procedures use parts that are included in the rack-mount kit. These

parts are listed in Table 4 on page 11. The installation procedure cross-references the items in this table. Be sure to use the referenced parts when you perform each step.

Before you start the rack-mount installation process, locate the rack-mount slides and the mounting bracket that are provided in the shipping container.

Figure 3 on page 11 shows the rack assembly. The number keys, such as 1, refer to the items listed in Table 4 on page 11.

10 SAN16B-2 Installation, Service, and User’s Guide

1. Unpack the rack-mount kit and verify that all ordered items and parts are present and undamaged. See Table 4 for a list of parts and the quantities supplied.

Table 4. Parts supplied with the rack-mount kit

Item Description Quantity

1 Rack mount slide (inner and outer slide) 2 2 Right rack mount bracket (optional bracket for

front of switch)

3 Left rack mount bracket (optional bracket for

front of switch)

4 Rack mounting bracket (3-hole) 4 5 Nut clip, M5 11 6 Screw, 8-32 x 3/16 in., zinc 11 7 Screw, M5 x 12 11 8 Bracket to slide rack kit (contains items 9 -

12)

9 Screw, 8-32 x 3/8 in., zinc 5 10 Washer, flat, No. 8 5 11 Washer, lock, No. 8 5 12 Nut, hex, 8-32 5

SJ000153

Outer Slide

EIA Rack Rail

Inner Slide

Front of Switch

See

Detail A

Figure 3. Rack assembly

Chapter 2. Installing and configuring the SAN16B-2 11

2. Separate the inner and outer slides. a. Open one of the slides until the lock engages. b. Press the lock release lever (1 in Figure 4) and remove the inner rail from

the outer rail.

c. Repeat step 2a and step 2b for the other rail.

Note: For racks with flush-mount doors, such as the 9306 Netfinity racks, do

not install the ears. Instead, use the rack-mount slides by attaching the switch to the set of mounting holes, which are offset 3 inches into the rack.

3. Install the inner (smaller) slide on the switch chassis, as Figure 3 on page 11 shows.

Attention: If you use screws longer than 3/16 in., you can damage the switch.

a. Position the flat side of the inner rail along one side of the switch. Align the

holes in the rail with the threaded holes in the side of the switch chassis. The chamfered end of the inner rail should face toward the rear of the switch (away from the ports) as shown in Figure 5 on page 13.

b. Attach the inner rail by using three of the 8-32 x 3/16 in. zinc screws (6 in

Table 4 on page 11).

SJ000046

Figure 4. Separating the inner and outer rails.

12 SAN16B-2 Installation, Service, and User’s Guide

c. Repeat step 3a on page 12 and step 3b on page 12 for the second inner rail

on the other side of the switch chassis.

Optional step: If desired, install the right rack mount bracket 2 (see Figure 3

on page 11) and the left rack mount bracket 3 on the switch chassis. Use these brackets to secure the switch to the rack as shown in Figure 5.

Attention: Do not use screws longer than 3/16 in.; they can damage the

switch. a. Position the left rack mount bracket at the left front corner of the switch

chassis. Align the two holes in the bracket with the two threaded holes in the switch chassis.

b. Attach the bracket by using two of the 8-32 x 3/16 in. zinc screws (see 6

in Figure 3 on page 11)

c. Repeat step 4a and step 4b for the right rack mount bracket on the right

front corner of the switch chassis.

Attach all four of the 3-hole rack mounting brackets 4 in Figure 6 on page 14.

a. Position a 3-hole rack mounting bracket 4 at the end of one of the outer

slides.

b. Attach the bracket by using the 8-32 x 3/8 in. zinc screws 9. Ensure that

the screw heads are inside the slides.

c. Place one each of the following items on the outer end of the screw in the

order listed:

1) Washer, flat No. 8 10

2) Washer, lock No. 8 11

3) Nut, hex, 8-32 12

d. Repeat steps 5a through 5c for the three remaining rail ends.

SJ000047

Front

Figure 5. Mounting the moving portion of the slide and mounting brackets to the switch

Chapter 2. Installing and configuring the SAN16B-2 13

6. Install the outer (larger) slides in the rack, as shown in Figure 6. a. At the desired height, install the five M5 nut clips 5. Put three M5 nut clips

in the front of the rack and two in the back. The middle clip in the front of the rack is for the locking ears.

Note:

Some rack mount kits might use 10-32 nut clips in place of the M5

nut clips for the locking ears.

b. Attach the slides by using four M5 x 12 screws 7 (see Figure 3 on page

11).

c. Repeat step 6a and step 6b for the other rail.

Install the switch in the rack.

a. Position the switch in front of the rack. Insert the switch into the rack by

sliding the inner slides that are mounted on the switch into the outer slides that are mounted on the rack. See Figure 7 on page 15.

SJ000048

Figure 6. Mounting the fixed portion of the rail and the locking ears to the rack

14 SAN16B-2 Installation, Service, and User’s Guide

b. Check the alignment of the slides by sliding the switch in and out of the

rack. Any difficulty moving the switch indicates lateral stress or misalignment. If this situation occurs, adjust the slide positions until the movement is smooth.

8. Optional step: If the right and left rack mount brackets are installed on the front corners of the switch, attach both brackets to the cabinet rack by using M5 x 12 screws 7. See step 4 on page 13 and Figure 3 on page 11. The screws should pass through the front of each bracket and the slide rail.

Note:

Some rack mount kits might use 10-32 nut clips in place of the M5 nut

clips for the locking ears.

9. Continue with initial setup of the switch by following the procedures in “Cabling and configuring the SAN16B-2” on page 16.

DANGER

electrical outlet that is not correctly wired could place

Note: Do not connect the switch to the network until you perform one of the

following steps:

v Set the internet protocol (IP) address. v Verify that the default IP address does not conflict with the existing IP

addresses in the same network.

SJ000049

Figure 7. Inserting slides into the rack rails

Chapter 2. Installing and configuring the SAN16B-2 15

Cabling and configuring the SAN16B-2

You must configure the switch to ensure correct operation within a network and fabric. For instructions about how to configure the switch to operate in a fabric that contains switches from other vendors, refer to the Brocade Fabric OS Administrator’s Guide.

For more information about the commands used in this procedure, refer to the Brocade Fabric OS Command Reference Manual.

Recommendations for cable management

Attention: The minimum bend radius for a 50 micron cable is 51 mm (2 in.) under

full tensile load and 30.5 mm (1.2 in.) with no tensile load. Because they are easily overtightened, tie wraps are not recommended for optical cables.

Cables can be organized and managed in a variety of ways: for example, using cable channels on the sides of the cabinet or patch panels to minimize cable management. A list of recommendations follows:

v Plan for rack space required for cable management before installing the switch. v Leave at least 1 meter (3.28 ft) of slack for each port cable. This provides room

to remove and replace the switch, allows for inadvertent movement of the rack, and helps prevent the cables from being bent to less than the minimum bend radius.

v If you are using ISL Trunking, consider grouping cables by trunking groups. The

cables used in trunking groups must meet specific requirements, as described in the Brocade Fabric OS Administrator’s Guide.

v For easier maintenance, label the fiber optic cables and record the devices to

which they are connected.

v Keep LEDs visible by routing port cables and other cables away from the LEDs. v Use Velcro straps to secure and organize fibre optic cables. Do not use tie wraps

on fiber optic cables, because wraps are easily overtightened and can damage the optic fibers.

Items required for installation

The following items are required for configuring and connecting the switch for use in a network and fabric:

v SAN16B-2 switch installed and connected to a power source v Workstation with an installed terminal emulator, such as HyperTerminal v Available IP address and corresponding subnet mask and gateway address v Serial cable (provided) v Ethernet cable v SFP transceivers and compatible fibre cables, as required v Access to an FTP server for backing up the switch configuration (optional)

Configuring the SAN16B-2

Follow the steps described in the next sections to configure your switch.

1. “Creating a serial connection” on page 17

2. “Powering up the switch and logging in” on page 18

3. “Setting the IP address” on page 18

16 SAN16B-2 Installation, Service, and User’s Guide

4. “Creating an Ethernet connection and logging in” on page 19

5. “Modifying the domain ID (optional)” on page 19

6. “Installing the SFP transceivers” on page 19

7. “Connecting the cables” on page 20

Creating a serial connection

Before you can begin configuring the switch, you must create a connection by way of the serial port. To create a serial connection to the switch, perform the following steps:

1. Using the provided serial cable, connect a workstation to the serial port on the switch. (see 2 in Figure 8)

2. Disable any serial communication programs running on the workstation.

3. Open a terminal emulator application (such as HyperTerminal on a PC or TERM in a UNIX

environment) and configure the application as follows:

v In a Windows 95, 98, 2000, or NT environment:

Bits per second 9600 Databits 8 Parity None Stop bits 1 Flow control None

In a UNIX environment, type the following string at the prompt:

tip /dev/ttyb -9600

scale: 5/1 6" = 1"

IOIOI

0 4

3 7

152

8 12

11 15

91310

0 4

1 5

IOIOI

2 6

3 7

b1600008

Figure 8. SAN16B-2 port side details

Chapter 2. Installing and configuring the SAN16B-2 17

Powering up the switch and logging in

After you create the serial connection using the steps in “Creating a serial connection” on page 17, provide power to the switch by completing the steps below.

Note: Power is supplied to the switch as soon as the power supply is connected to

a power source, you should then see POST messages.

1. Connect the power cord to the power supply and the power source.

Attention: Ensure that the power cable is routed so that it is not pinched or

exposed to stress when the switch is moved on the slide-rails. Ensure that the cord has a minimum service loop of six inches available at the connection to the switch.

The power supply LED (8 in Figure 8 on page 17) lights up green, and the switch begins running a Power On Self-Test (POST). The POST should complete and the switch will complete the boot process in about three minutes.

2. After POST is complete, verify that the System Status 9 and Power Status

8 LEDs are green (see “Interpreting LED activity” on page 21 for more

details).

3. Using a serial connection, when the terminal emulator application stops reporting information, press Enter to display the login prompt.

4. Log in using the administrative account. The logon is admin and the default password is password. You can create up to two simultaneous admin sessions and four user sessions. For details, refer to the Brocade Fabric OS Administrator’s Guide and the Brocade Fabric OS Command Reference Manual. You will be prompted to change the default passwords on the switch during initial login; you can bypass this by pressing Ctrl-C.

Setting the IP address

Replace the default IP address and related information with the information provided by your network administrator. By default, the IP address is set to

10.77.77.77.

1. Type ipAddrSet at the terminal emulator application prompt, as shown in the following example.

2. Enter the requested information as prompted. In this example, the items in bold are the new values that were entered.

Table 5. Example of changing an IP address

switch:admin> ipAddrSet Ethernet IP Address [192.168.1.1]:10.32.53.47 Ethernet Subnetmask [255.255.255.0]:255.255.240.0 Fibre Channel IP Address [0.0.0.0]: Fibre Channel Subnetmask [0.0.0.0]: Gateway IP Address [0.0.0.0]:10.32.48.1 Set IP address now? [y = set now, n = next reboot]:y IP address being changed... Committing configuration...Done. switch:admin>

3. Optionally, verify that the address was correctly set by entering the ipaddrShow command at the prompt.

4. Record the IP address on the label on the port side of the chassis.

5. If the serial port is no longer required, log out of the serial console, remove the serial cable, and replace the plug in the serial port.

18 SAN16B-2 Installation, Service, and User’s Guide

Note: Any time the serial port is not in use, install the protective plug to keep

foreign material out of the port.

Creating an Ethernet connection and logging in

Create an Ethernet connection to the switch by performing the following steps:

1. Connect an Ethernet cable to the Ethernet port (1 in Figure 8 on page 17) and to the workstation or to an Ethernet network that contains the workstation. After this connection is made, the switch can be accessed remotely by command line or by using Advanced Web Tools. Ensure that the switch is not being modified from any other connections during the remaining steps.

2. Log in to the switch with Telnet using the admin account.

Modifying the domain ID (optional)

If desired, you can modify the domain ID. The default domain ID is domain 1. If the switch is not powered on until after it is connected to the fabric and the default domain ID is already in use, the domain ID for the new switch is automatically reset to a unique value. If the switch is connected to the fabric after it has been powered on and the default domain ID is already in use, Principal Switch in the fabric detects the attempt to use a previously allocated domain ID and segments the ISL to that switch. The fabric is otherwise unaffected and continues to operate normally.

To find the domain IDs that are currently in use, run the fabricShow command on another switch in the fabric.

Note: The SAN16B-2 is an entry-level switch and should not be included in fabrics

with more than 10 domains.

To modify the domain ID, perform the following steps:

1. Disable the switch by entering switchDisable.

2. Enter configure. Enter a new value or press Enter to accept each default value.

3. At the Fabric Parameters prompt, enter y and press Enter, as the following example shows:

Fabric parameters (yes, y, no, n): [no] y

4. Enter a unique domain ID, such as the domain ID used by the previous switch, if still available, as the following example shows:

Domain: (1..239) [1] 3

5. Complete the remaining prompts or press Ctrl+D to accept the remaining default settings without going through each prompt.

6. Re-enable the switch by entering the switchEnable command.

Installing the SFP transceivers

If your switch came without SFP transceivers installed, or if the transceivers have been removed, use the following procedure to install them into the Fibre Channel ports. See “Installing an SFP” on page 29 for more detailed instructions.

The ports selected for use in trunking groups must meet specific requirements. For a list of these requirements, refer to the Brocade Fabric OS Administrator’s Guide.

To install SFP transceivers, perform the following steps:

1. Remove the protective plugs from the ports to be used.

Chapter 2. Installing and configuring the SAN16B-2 19

2. Position a transceiver so that it is oriented correctly and insert it into a port until the latching mechanism clicks. The transceivers are keyed to ensure correct orientation. If a transceiver does not install easily, ensure that it is correctly oriented.

3. Repeat for the remaining ports, as required.

Connecting the cables

See “Installing fiber-optic cables” on page 31 for more detailed instructions with illustrations.

Attention: The minimum bend radius for a 50-micron cable is 2 inches under full

tensile load, and 1.2 inches with no tensile load. Because they are easily overtightened, tie wraps are not recommended for optical cables.

Connect the cables to the transceivers:

1. Remove the plugs from the end of the cable and from the SFP.

2. The cable connectors are keyed to ensure correct orientation. Orient a cable connector so that the key (ridge on one side of connector) aligns with the slot in the transceiver and insert cable into transceiver until latching mechanism clicks. If a cable does not install easily, ensure it is correctly oriented. For instructions specific to cable type, refer to the cable manufacturer's documentation.

3. Repeat for the remaining cables and transceivers, as required.

The

cables used in trunking groups must meet specific requirements. For a list of

these requirements, refer to the Brocade Fabric OS Administrator’s Guide.

Verifying the configuration

After you complete the configuration, use the LEDs and commands to verify that the configuration has been accepted:

1. Check the LEDs to verify that all components are functional. For information about LED patterns, refer to “Interpreting LED activity” on page 21.

2. Verify the correct operation of the switch by entering the switchShow command from the workstation. This command provides information about the switch and port status.

3. Verify the correct operation of the switch in the fabric by entering the

fabricShow command from the workstation. This command provides general

information about the fabric.

Backing up the configuration

Back up regularly to ensure that a recent configuration is available for downloading to a replacement switch, if required. For specific instructions about how to back up the configuration, refer to the Brocade Fabric OS Administrator’s Guide.

Back up the switch configuration to an FTP server by entering the configUpload command and following the prompts. This command uploads the switch configuration to the server, making it available for downloading to a replacement switch, if necessary.

20 SAN16B-2 Installation, Service, and User’s Guide

Chapter 3. Operating the SAN16B-2

This chapter provides the following information:

v “Powering the SAN16B-2 on and off” v “Interpreting LED activity” v “POST and boot specifications” on page 25 v “Interpreting POST results” on page 26

Powering the SAN16B-2 on and off

See Chapter 2, “Installing and configuring the SAN16B-2,” on page 7 for initial setup instructions before powering the switch on for the first time. Once the switch has been properly configured, follow these instructions to power the switch on and off at other times.

To power on the switch, connect the power cable to the ac receptacle on the switch and to a power source. The switch runs POST by default each time it is powered on, reset, or rebooted, and requires a minimum of 3 minutes to run. To end the flow of power to the switch, remove the power cord from the power source.

Interpreting LED activity

System activity and status can be determined through the activity of the LEDs on the switch. All the switch’s LEDs are located on the port side of the switch.

There are three possible LED states: no light, a steady light, and a flashing light. The steady lights and flashing lights can be green or amber.

Sometimes the LEDs flash either of these colors during boot, POST, or other diagnostic tests. This is normal and does not indicate a problem unless all boot processes and diagnostic tests are complete, and the LEDs continue to indicate a problem status.

LED location

The LEDs are located on the port side of the switch (see Figure 9 on page 22). They include:

v Power Status 8 (green only) to indicate a valid power supply to the system v System Status 9 (green/amber) to indicate the current system status v Ethernet Link 11 to indicate an active Ethernet connection v Ethernet Speed 10 to indicate the Ethernet speed v Port Status 7 (green/amber), located in pairs below each pair of Fibre Channel

ports (left LED of each pair)

v Port Speed 6 (green/amber), located in pairs below each pair of Fibre Channel

ports (right LED of each pair)

Note:

The pairs of port LEDs for all 16 ports are arrayed below the lower row of

ports. The pairs of port LEDs are located in the array in the same relative positions as the ports. The port number of the associated Fibre Channel port appears between the Port Status and Port Speed LEDs.

Figure 9 shows the location of the LEDs on the port side of the switch. See “LED patterns and recommended actions” for details about how to interpret the activity of these LEDs, and possible actions to take.

1 Ethernet port 7 Port status LEDs (16

total)

2 Serial port 8 Power status LED 3 Fibre Channel ports

(16 total)

9 System status LED

4 LEDs for top row of

ports

10 Ethernet speed LED

5 LEDs for lower row of

ports

11 Ethernet link LED

6 Port speed LEDs (16

total)

LED patterns and recommended actions

Table 6 on page 23, Table 7 on page 24, and Table 8 on page 25 summarize LED location, color, and meaning of the LEDs on the switch, as well as any recommended user responses.

System and power LED patterns

The system and power LED patterns are shown in Table 6 on page 23.

scale: 5/1 6" = 1"

IOIOI

0 4

3 7

152

8 12

11 15

91310

0 4

1 5

IOIOI

2 6

3 7

b1600008

Figure 9. LEDs on the port side of the SAN16B-2

22 SAN16B-2 Installation, Service, and User’s Guide

Table 6. System LED patterns during normal operation

LED name LED color Status of Hardware Recommended action Power Status No light Switch is off or power supply has

failed.

Verify that the system is on and has completed booting. If the system is on, the unit is faulty. Contact IBM Support.

Steady green Switch is on and power supply is

functioning properly

No action required.

System Status No light Switch is off , boot is not complete,

or boot failed.

Verify that the system is on and has

completed booting. Steady green Switch is operational No action required. Slow-flashing

green (on 1 second, off 1 second)

One or both of the following are true:

v One or more environmental

ranges are exceeded.

v Error log contains one or more

port diagnostic error messages.

Complete the following steps:

1. Check environmental conditions, error log, Port Status LEDs, SFPs, cables, and loopback plugs.

2. Correct error condition

3. Clear error log.

4. Rerun diagnostics to verify fix.

5. Contact IBM Support if unable to resolve.

Amber Switch is faulty, or is initializing. Wait a few moments to verify that the

switch is not initializing. Contact IBM Support, if required.

Chapter 3. Operating the SAN16B-2 23

Port LED patterns

Each port has two LEDs: a port speed and a port status indicator. These LEDs are located below both rows of ports, and each set is labeled with the port number. Table 7 shows the LED location, color, and meaning for these port LEDs.

Table 7. Port LED patterns during normal operation

LED name LED color Status of hardware Recommended action

Port Status No light No light or signal carrier (SFP or

cable) detected.

Check SFP and cable.

Steady green Port is online (connected to external

device) but has no traffic.

No action required.

Slow-flashing green (on one second, off one second)

Port is online but segmented, indicating a loopback cable or incompatible switch.

Verify that the correct device is connected to port and that the switch and port settings are correct.

Fast-flashing green (on 1/4 second, off 1/4 second)

Port is in internal loopback (diagnostic).

No action required.

Flickering green Port is online with traffic flowing

through port.

No action required.

Steady amber Port is receiving light or signal carrier

but is not yet online.

No action required.

Slow-flashing amber (on one second, off one second)

Port is disabled as the result of diagnostics or portDisable command. If all ports are slow-flashing amber, the switch could be disabled.

Enable the port using the portEnable command. See the Brocade Fabric

OS Command Reference Manual for

more information. If all ports are slow-flashing amber, enable the switch using the

switchEnable command.

Fast-flashing amber (on 1/4 second, off 1/4 second)

Port is faulty. Perform the following steps:

1. Check the Port Status LEDs, error log, SFP, and cable or loopback plug.

2. Clear the error log.

3. Rerun the diagnostics to verify that the error condition is fixed.

Alternating green and amber

Port is bypassed. Check configuration of Fibre Channel

loop.

Port Speed Green on, amber

off

Port is transmitting/receiving at 2 Gb/sec.

No action required.

Green off, amber off

Port is transmitting/receiving at 1 Gb/sec.

No action required.

Amber on, green off

Port is transmitting/receiving at 4 Gb/sec.

No action required.

Ethernet LED patterns

Each Ethernet port has two LEDs, the Link LED, and the Speed LED (see Figure 9 on page 22 for the Ethernet port and Ethernet LED locations). Table 8 on page 25 describes the location, color, and meaning for the Ethernet LED activity.

24 SAN16B-2 Installation, Service, and User’s Guide

Table 8. Ethernet LED patterns

LED name, location LED color Status of hardware Recommended action

Ethernet link Amber Link is valid. No action required.

Blinking amber Traffic.

Ethernet Speed No light Port speed is 10 Mb/sec No action required.

Steady green Port speed is 100 Mb/sec.

POST and boot specifications

When the switch is turned on (plugged in) or rebooted, the switch performs POST. Total boot time with POST is a minimum of 3 minutes.

POST can be omitted after subsequent reboots by using the fastboot command or entering the diagDisablePost command to persistently disable POST. For more information about these commands, refer to the Brocade Fabric OS Command Reference Manual.

POST

The success/failure results of the diagnostic tests that run during POST can be monitored through the error log or the command line interface.

POST includes the following steps:

1. Preliminary POST diagnostics are run.

2. Operating system is initialized.

3. Hardware is initialized.

4. Diagnostic tests are run on several functions, including circuitry, port functionality, memory, statistics counters, and serialization.

Boot

Boot completes in a minimum of 3 minutes if POST is run. In addition to POST, boot includes the following steps after POST is complete:

1. Universal port configuration is performed.

2. Links are initialized.

3. Fabric is analyzed, and if any ports are connected to other switches, the switch participates in a fabric configuration.

4. Switch obtains a domain ID and assigns port addresses.

5. Unicast routing tables are constructed.

6. Normal port operation is enabled.

Chapter 3. Operating the SAN16B-2 25

Interpreting POST results

POST is a system check that is performed each time the switch is powered on, rebooted, or reset. During POST, the LEDs flash amber and green. Any errors that occur during POST are listed in the error log.

To determine whether POST completed successfully and whether or not any errors were detected:

1. Verify that the switch LEDs indicate that all components are healthy. See the tables in “LED patterns and recommended actions” on page 22 for descriptions and interpretation of LED patterns. If one or more LEDs do not display a healthy state, verify that the LEDs on the switch are not set to beacon; use the

switchShow command.

2. Verify that the switch prompt displays on the terminal of a computer workstation connected to the switch. If there is no switch prompt when POST completes, press Enter. If the switch prompt still does not display, open another Telnet session or access the switch through another management tool. If this is not successful, the switch did not successfully complete POST. Contact IBM Service for repair.

3. Review the switch system log for errors. Any errors detected during POST are written to the system log, which is accessible through the errShow command.

For

information about all referenced commands, and on accessing the error log,

refer to Brocade Fabric Administrator’s Guide. For information about error messages, refer to the Brocade Fabric OS System Error Message Reference Manual.

26 SAN16B-2 Installation, Service, and User’s Guide

Chapter 4. Monitoring and maintaining the SANB16-2

Once the SANB16-2 is installed and configured, it does not require any regular physical maintenance. You can monitor the health of the fabric as well as maintain the health of the switch by using the information in this chapter.

v “Management features of the SANB16-2” v “Maintaining the SANB16-2”

Management features of the SANB16-2

Using any of the management tools built into the switch listed in Table 9, you can monitor fabric topology, port status, physical status, and other information used for performance analysis and system debugging.

When running IP over Fibre Channel, these management tools must be run on both HBA and switch and must be supported by both HBA and HBA driver.

Table 9. Management options for the switch

Management tool Out-of-band

support

In-band support

Command line interface Up to two admin sessions and four user sessions simultaneously. For more information, see the Brocade Fabric OS Administrator’s Guide and the Brocade Fabric OS Command Reference Manual

Ethernet or serial connection

IP over Fibre Channel

Fabric Manager Ethernet

connection

IP over Fibre Channel

Brocade Advanced Web Tools For information, see the Brocade Web Tools Administrator's Guide

Ethernet connection

IP over Fibre Channel

Standard SNMP applications For information, see the Brocade Fabric OS MIB Reference Manual.

Ethernet connection

IP over Fibre Channel

Management server For information, see the Brocade Fabric OS Administrator’s Guide and the Brocade Fabric OS Command Reference Manual.

Ethernet connection

Native in-band interface (over HBA only)

Maintaining the SANB16-2

The SANB16-2 was designed to minimize the chance of failure, and does not require any regular physical maintenance. Periodically monitor the switch environment to ensure that the environmental conditions, described in “System general specifications” on page 39, are met. This helps prevent failure of the switch due to distress or abuse. In addition to running diagnostic tests and using various management tools, you can monitor the condition of the switch through the LEDs. See the tables in “Interpreting LED activity” on page 21 for descriptions and interpretation of LED patterns, and recommended user interventions.

Diagnostic tests

In addition to POST, Fabric OS includes diagnostic tests to help troubleshoot the hardware and the firmware. This includes tests of internal connections and circuitry, fixed media, and the SFPs and cables in use. The tests are implemented by command, either through a Telnet session or through a terminal set up for a serial

connection to the switch. Some tests require the ports to be connected by external cables, to allow diagnostics to verify the serializer/deserializer interface, SFP, and cable.

All diagnostic tests are run at link speeds of 1, 2, and 4 Gbit/sec, depending on the speed of the link being tested.

Note: Diagnostic tests can temporarily lock the transmit and receive speed of the

links during diagnostic testing.

For information about specific diagnostic tests, refer to the Brocade Fabric OS Administrator’s Guide.

Installing, removing, and testing SFPs

If your switch did not come with installed SFP modules (transceivers), or you are replacing older ones, follow the instructions in “Installing an SFP” on page 29 to install the SFPs. Follow the instructions in “Removing SFP modules” on page 32 to replace faulty SFPs, or to remove SFPs that are no longer needed in the switch.

SFPs are supplied by several different manufacturers and have different designs. Some SFPs have plastic tabs, as shown in Figure 10, and others have wire bales, as shown in Figure 11. Follow the instructions appropriate to the type of SFP you are installing.

Note: The illustrations of the SFPs and cable connectors in this section are not

oriented in the same direction that they are installed in the switch.

sfpp0001

Figure 10. SFP plastic tab variety

sfpw0001

Figure 11. SFP wire bale variety

28 SAN16B-2 Installation, Service, and User’s Guide

Installing an SFP

If your switch did not come with installed SFPs, or you are replacing older ones, follow the instructions below to install your SFPs.

Note: SFPs are keyed so that they can be inserted only in the correct orientation.

The ports in the top row the switch are oriented in one direction, and the lower row of ports are oriented in the opposite direction. If an SFP does not install easily, ensure that it is oriented and aligned correctly, and that the port is not blocked by a protective cap or other object.

1. Remove the protective cap (if any) from the switch port. Save the cap for future use.

2. Remove the SFP from its static-protective package.

3. Remove the protective cap from the SFP module, as shown in Figure 12 and Figure 13. Save the cap for future use.

4. Hold the SFP correctly oriented towards the port as shown in Figure 14 on page 30 and Figure 15 on page 30 (for wire bale type SFPs, make sure the bale is open, in the unlocked position, as shown in 2 of Figure 15 on page 30). Slide the SFP into the port until you feel it click into place. For the top row of ports, SFPs will be oriented as shown. To install SFPs in the bottom row of ports, orient the SFPs with the plastic tab or wire bale on the top.

Protective cap

SFP module

sfpp0002

Figure 12. Removing the protective cap from a plastic tab type SFP

Protective

cap

SFP

module

Wire

tab

sfpw0002

Figure 13. Removing the protective cap from a wire bale type SFP

Chapter 4. Monitoring and maintaining the SANB16-2 29

1 Switch chassis 2 Wire bale (in open, unlocked position) 3 SFP

5. For SFPs with wire bales, close the bale to lock it in place (see as shown in 2 in Figure 15.

OIOI

sfpp0004

SFP

Figure 14. Installing a plastic tab type SFP

IOIOI

b1600009

Figure 15. Installing a wire bale type SFP

30 SAN16B-2 Installation, Service, and User’s Guide

1 Switch chassis 2 Wire bale (in closed, locked position)

6. Repeat this procedure for the remaining SFPs and ports, as required. For the top row of ports, SFPs will be oriented as shown in Figure 14 on page 30 and Figure 15 on page 30. To install SFPs in the bottom row of ports, orient the SFPs with the plastic tab or wire bale on the top.

Installing fiber-optic cables

To connect fiber-optic cables to SFP modules, follow the steps below.

Note:

Fiber-optic cable connectors are keyed to ensure that they are inserted in

the SFPs correctly. If a cable does not install easily, ensure that it is oriented and aligned correctly, and that the SFP or cable end is not blocked by a protective cap or other object.

1. Remove the protective caps from the end of the fiber-optic cable. See Figure 17. Remove the protective cap (if any) from the SFP. Save the caps for future use.

scale: 1/2" = 1"

IOIOI

b1600010

Figure 16. Locking wire bale SFP in place

Protective cap

Fiber-optic cable

foc00001

Figure 17. Removing the caps from fiber-optic cables

Chapter 4. Monitoring and maintaining the SANB16-2 31

2. Holding the cable by its connector, align the cable end with the SFP module, and push it into the SFP (see Figure 18) until the connector clicks in place .

Removing SFP modules

In some cases you might need to remove an SFP module, either because it is no longer needed or because you must replace it. If fiber-optic cables are installed, they must be removed before you can remove the SFP module.

Note: In the illustrations below, the SFPs and cables are shown outside of the

switch’s ports for clarity, and are not oriented in the direction that they are installed in the switch.

Removing fiber-optic cables

Follow the steps below to remove a fiber optic cable.

1. Press down and hold the lever (see Figure 19) to release the cable latches.

2. Carefully pull on the connector to remove the cable from the SFP module, as shown in Figure 20 on page 33.

foc00002

Figure 18. Inserting a fiber-optic cable into an SFP module

Lever

Latches

foc00004

Figure 19. Fiber-optic cable lever and latches

32 SAN16B-2 Installation, Service, and User’s Guide

3. Replace the protective caps on the cable ends.

4. If you are leaving the SFP in place, replace the protective cap on the SFP.

Removing a plastic tab type SFP

Follow the steps below to remove a plastic tab type SFP.

1. Pull the plastic tab outward 10° from the SFP to unlock it (see Figure 21).

Note: If there is not enough room because of an adjacent cable and SFP, you

may need to temporarily remove that cable.

2. Using the plastic tab, pull the SFP from the port (see Figure 22 on page 34).

foc00003

Figure 20. Removing a fiber-optic cable

Plastic

tab

SFP

module

sfpp0003

Figure 21. Unlocking the SFP module latch, plastic tab type

Chapter 4. Monitoring and maintaining the SANB16-2 33

3. Replace the protective cover on the SFP module.

4. Place the SFP module into a static-protective package.

5. Replace the protective cover on the switch port.

6. Repeat this procedure for any additional SFPs, as required.

Removing a wire bale type SFP

Follow the steps below to remove a wire bale type SFP.

1. Unlock the bale (wire handle) by pulling it outwards 90° to release the SFP(see

1 in Figure 23 on page 35).

Note: If there is not enough room because of an adjacent cable and SFP, you

may need to temporarily remove that cable.

OIOI

sfpp0005

SFP

Figure 22. Removing an SFP module, plastic tab type

34 SAN16B-2 Installation, Service, and User’s Guide

2. Grasping it by the bale, gently but firmly pull the SFP out of the port (see 2 in Figure 23).

3. Replace the protective cover on the SFP module.

4. Place the SFP module into a static-protective package.

5. Replace the protective cover on the switch port.

6. Repeat this procedure for any additional SFPs, as required.

OIOI

Bale

IOIOI

Open Bale

spfw0005

SFP

Figure 23. Unlocking the SFP module latch, wire bale type

Chapter 4. Monitoring and maintaining the SANB16-2 35

36 SAN16B-2 Installation, Service, and User’s Guide

Appendix A. Product specifications

This appendix contains the following information:

v “Data transmission ranges” v “Fibre Channel port specifications” v “Serial port specifications” v “Power supply specifications” on page 38 v “Weight and physical dimensions” on page 39 v “Memory specifications” on page 39 v “System general specifications” on page 39

Data transmission ranges

Table 10 provides the data transmission ranges for different cable types and port speeds.

Table 10. Laser data transmission ranges

Port speed Cable size (microns) Short wavelength (SWL) Long wavelength (LWL)

1 Gb/sec 50 500 m (1,640 ft) N/A

62.5 300 m (984 ft) N/A 9 N/A up to 10 km (6.2 mi)

2 Gb/sec 50 300 m (984 ft) N/A

62.5 150 m (492 ft) N/A 9 N/A N/A

4 Gbit/sec 50 150 m (492 ft) N/A

62.5 70 m (230 ft) N/A 9 N/A N/A

Fibre Channel port specifications

The Fibre Channel ports in the SAN16B-2 are compatible with SWL and LWL SFPs. The strength of the signal is determined by the type of SFP in use.

The ports are capable of operating at 1, 2, or 4 Gb/sec, and are able to autosense to the highest speed capable for all attached devices.

Serial port specifications

The serial port is located on the port side of the switch. It is a three-wire RS–232 port with a DB–9 male connector, designed to connect to a DTE port.

Note: To provide dust and ESD protection, keep the safety plug on the serial port

whenever the port is not in use.

You can use the serial port to connect to a computer workstation to configure the switch IP address without connecting to the fabric. The serial port's parameters are 9600 baud, 8 data bits, no parity, 1 stop bit, and no flow control.

The port requires a straight (extension) serial cable with a female 9–pin subminiature-D connector. Only pins 2, 3, and 5 are supported.

Power supply specifications

The power supply is universal and capable of functioning worldwide without using voltage jumpers or switches. It meets IEC 61000-4-5 surge voltage requirements and is autoranging in terms of accommodating input voltages and line frequencies. The power supply has its own built-in fan for cooling, pushing the air toward the port side of the switch. The power supply is not removable.

Table 11 lists the power supply specifications of the switch.

Table 11. SAN16B-2 power supply specifications

Specification Values

Outlet The outlet must be correctly wired and

earth-grounded Maximum output from power supply 210 watts, with fans operating Maximum system power consumption 50–65 watts (depending on SFP vendor) Input voltage 100—240 Vac (nominal 80% efficiency),

autoranging Input line frequency 47—63 Hz Harmonic distortion Active power factor correction per

IEC1000–3–2 BTU rating at 80% efficiency 266 BTU Inrush current 25A, each line input Input line protection Fused in both hot and neutral lines

38 SAN16B-2 Installation, Service, and User’s Guide

Weight and physical dimensions

Table 12 lists the weight and physical dimensions of the SAN16B-2.

Table 12. Switch specifications

Dimension Value

Height 1U = 4.29 cm (1.69 in.) Width 42.85 cm (16.87 in.) Depth 30.734 cm (12.10 in.) Weight 4.0 kg (8.8 lb)

Memory specifications

The switch memory specifications are listed in Table 13.

Table 13. Memory specifications

Memory type Installed Memory

Main memory (SDRAM) 128 MB Compact flash 256 MB

System general specifications

Table 14 lists the system specifications for the SAN16B-2 switch.

Table 14. General specifications

Specification Descriptions

Auto-configuring port types F_Port, FL_Port, and E_Port System architecture Nonblocking shared-memory switch System processor PowerPC440GP, 333 MHz CPU ANSI Fibre-channel protocol FC-PH (Fibre Channel Physical and

Signalling Interface standard) Modes of operation Fibre Channel Class 2, Class 3, Class F Fabric initialization Complies with FC–SW–2 6.6 Ethernet port One 10/100 Mbit/sec Ethernet port; accessed

through RJ45 connector Terminal port One UART interface for terminal, accessed

through DB9 connector ASIC Goldeneye ASIC for Fibre Channel Switching FC-IP (IP over Fibre Channel) Complies with FC-IP 2.3 of FCA profile Aggregate switch I/O bandwidth 128 Gb/sec if all 16 ports running at 4

Gb/sec, full duplex Port-to-port latency Less than 2 microseconds with no contention

(destination port is free)

Appendix A. Product specifications 39

40 SAN16B-2 Installation, Service, and User’s Guide

Appendix B. Power cord information

Table 15 lists the description, feature code number, part number, plug standard reference, and country or region for the power cords available through IBM. Figure 24 on page 43 shows the plugs associated with each power cord. These feature codes and part numbers apply to products purchased through IBM or IBM resellers. For products purchased through the Web at www.ibm.com, the power cord part numbers are different.

Table 15. Power cord information

Description, Feature Code (FC), and Part

Number (PN)

Plug Standard

Reference

Country or Region

Index

Number in

Figure 24

on page 43

US/Canada

2.8 m, 125V FC 9800 PN 6952300 (See Note)

NEMA 5-15P Aruba, Bahamas, Barbados, Bermuda, Bolivia,

Brazil, Canada, Cayman Islands, Colombia, Costa Rica, Curacao, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Jamaica, Japan, Liberia, Mexico, Netherlands Antilles, Nicaragua, Panama, Peru, Philippines, Saudi Arabia, South Korea, Suriname, Taiwan, Trinidad Tobago, Venezuela, US

Chicago

1.8 m, 125 V FC 9986 PN 6952301

NEMA 5-15P Chicago, U.S.A. 1

US/Canada

2.8 m, 250 V FC 9833 PN 1838574

NEMA 6-15P Aruba, Bahamas, Barbados, Bermuda, Bolivia,

Brazil, Canada, Cayman Islands, Costa Rica, Curacao, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Jamaica, Japan, Liberia, Netherlands Antilles, Nicaragua, Panama, Peru, Philippines, Suriname, Taiwan, Thailand, Trinidad Tobago, Venezuela, US

Australia

2.8 m, 250V FC 9831 PN 39M5102

AS 3112 NZS 198

Argentina, Australia, China, Colombia, New Zealand, Papua New Guinea, Paraguay, Uruguay, Western Samoa

France, Germany

2.8 m, 250V FC 9820 PN 13F9979

CEE 7 - VII Afghanistan, Algeria, Andorra, Angola, Aruba,

Austria, Belgium, Benin, Brazil, Bulgaria, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Congo-Brazzaville, Curacao, Czech Republic, Democractic Republic of Congo, Denmark, Egypt, Finland, France, French Guiana, Germany, Greece, Guinea, Hungary, Iceland, Indonesia, Iran, Ivory Coast, Jordan, Kenya, Korea, Lebanon, Luxembourg, Macau, Malagasy, Mali, Martinique, Mauritania, Mauritius, Monaco, Morocco, Mozambique, Netherlands, Netherlands Antilles, New Caledonia, Niger, Norway, Poland, Portugal, Romania, Russia, Saudi Arabia, Senegal, Spain, Sweden, Sudan, Syria, Togo, Tunisia, Turkey, Yugoslavia, Zaire, Zimbabwe, Vietnam

Table 15. Power cord information (continued)

Description, Feature

Code (FC), and Part

Number (PN)

Plug Standard

Reference

Country or Region

Index

Number in

Figure 24

on page 43

Denmark

2.8 m, 250V FC 9821 PN 13F9997

DK2-5A Denmark 5

South Africa

2.8 m, 250V FC 9829 PN 14F0015

SABS 164 Bangladesh, Burma, Pakistan, South Africa, Sri

Lanka

United Kingdom

2.8 m, 250V FC 9825 PN 14F0033

BS 1363 Antigua, Bahrain, Bermuda, Brunei, Channel

Islands, China (Hong Kong S.A.R.), Cyprus, Fiji, Ghana, Guyana, India, Iraq, Ireland, Jordan, Kenya, Kuwait, Malaysia, Malawi, Malta, Nepal, Nigeria, Oman, Polynesia, Qatar, Sierra Leone, Singapore, Tanzania, Uganda, UK, United Arab Emirate (Dubai), Yemen, Zambia

Switzerland

2.8 m, 250V FC 9828 PN 14F0051

SEV SN 416534 Liechtenstein, Switzerland 8

Italy

2.8 m, 250V FC 9830 PN 14F0069

CEI 23- 16 Chile, Ethiopia, Italy, Libya, Somalia 9

Israel

2.8 m, 250V FC 9827 PN 14F0087

S11-32-1971 Israel 10

Argentina

2.8 m, 250V FC 9834 PN 36L8880

IEC 83-A5 Argentina, Brazil, Colombia, Paraguay, Trinidad

Tobago, Uruguay

China

2.8 m, 250V FC 9840 PN 02K0546

CCEE People’s Republic of China 12

Note: Part number 6952300 is the default power cord for the countries or regions listed. If you do not specify a

power cord when you place your order, IBM provides this power cord.

Types of plugs

Figure 24 on page 43 shows the plugs for the power cords in Table 15 on page 41. Match the index number that is beside each plug to the index number in the table.

42 SAN16B-2 Installation, Service, and User’s Guide

Notices

This information was developed for products and services offered in the U. S. A.

IBM may not offer the products, services, or features discussed in this document in other countries. Consult your local IBM representative for information on the products and services currently available in your area. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe on any IBM intellectual property right may be used instead. However, it is the user’s responsibility to evaluate and verify the operation of any non-IBM product, program, or service.

IBM may have patents or pending patent applications covering subject matter described in this document. The furnishing of this document does not give you any license to these patents. Yo u can send license inquiries, in writing to:

IBM Director of Licensing IBM Corporation North Castle Drive Armonk, N.Y. 10504-1785 U.S.A.

For additional information, visit the web at: http://www.ibm.com/ibm/licensing/contact/

The following paragraph does not apply to the United Kingdom or any other country where such provisions are inconsistent with local law:

123

56 7 8

910 11 12

x26416

Figure 24. Types of plugs

PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you.

This information could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time without notice.

Any references in this information to non-IBM web sites are provided for convenience only and do not in any manner serve as an endorsement of those web sites. The materials at those web sites are not part of the materials for this IBM product and use of those web sites is at your own risk.

IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you.

Any performance data contained herein was determined in a controlled environment. Therefore, the results obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurement may have been estimated through extrapolation. Actual results may vary. Users of this document should verify the applicable data for their specific environment.

Information concerning non-IBM products was obtained from the suppliers of those products, their published announcements or other publicly available sources. IBM has not tested those products and cannot confirm the accuracy of performance, compatibility or any other claims related to non-IBM products. Questions on the capabilities of non-IBM products should be addressed to the suppliers of those products.

If you are viewing this information in softcopy, the photographs and color illustrations may not appear.

44 SAN16B-2 Installation, Service, and User’s Guide

Trademarks

The following terms are trademarks of the International Business Machines Corporation in the United States, other countries, or both:

IBM TotalStorage eServer IBMLink iSeries pSeries xSeries zSeries

Brocade and SilkWorm are trademarks of Brocade Communications Systems, Inc., or its subsidiaries in the United States, other countries, or both.

Linux is a trademark of Linus Torvalds.

Microsoft®, Windows, and Windows NT

are trademarks of Microsoft Corporation in

the United States, other countries, or both.

UNIX is a registered trademark of The Open Group in the United States and other countries.

Other company, product, or service names may be trademarks or service marks of others.

Electronic emission notices

The following statements apply to this product. The statements for other products intended for use with this product will appear in their accompanying manuals.

Federal Communications Commission (FCC) Class A Statement

Note: This equipment has been tested and found to comply with the limits for a

Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense.

IBM is not responsible for any radio or television interference caused by unauthorized changes or modifications to this equipment. Unauthorized changes or modifications could void the user’s authority to operate the equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Industry Canada Class A Emission Compliance Statement

This Class A digital apparatus complies with Canadian ICES-003.

Notices 45

Avis de conformité à la réglementation d’Industrie Canada

Cet appareil numérique de la classe A est conform à la norme NMB-003 du Canada.

European Union (EU) Electromagnetic Compatibility Directive

This product is in conformity with the protection requirements of EU Council Directive 89/336/EEC on the approximation of the laws of the Member States relating to electromagnetic compatibility. IBM cannot accept responsibility for any failure to satisfy the protection requirements resulting from a non-recommended modification of the product, including the fitting of non-IBM option cards.

This product has been tested and found to comply with the limits for Class A Information Technology Equipment according to European Standard EN 55022. The limits for Class A equipment were derived for commercial and industrial environments to provide reasonable protection against interference with licensed communication equipment.

Attention: This is a Class A product. In a domestic environment this product may

cause radio interference in which case the user may be required to take adequate measures.

Germany Electromagnetic Compatibility Directive

Zulassungsbescheinigung laut dem Deutschen Gesetz über die elektromagnetische Verträglichkeit von Geräten (EMVG) vom 18. September 1998 (bzw. der EMC EG Richtlinie 89/336)

Dieses Gerät ist berechtigt, in Übereinstimmung mit dem Deutschen EMVG das EG-Konformitätszeichen - CE - zu führen.

Verantwortlich für die Konformitätserklärung nach Paragraph 5 des EMVG ist die: IBM Deutschland Informationssysteme GmbH 70548 Stuttgart.

Informationen in Hinsicht EMVG Paragraph 4 Abs. (1) 4:

Das Gerät erfüllt die Schutzanforderungen nach EN 55024 und EN 55022 Klasse A.

EN 55022 Klasse A Geräte müssen mit folgendem Warnhinweis versehen werden: ″Warnung: dies ist eine Einrichtung der Klasse A. Diese Einrichtung kann im Wohnbereich Funkstörungen verursachen; in diesem Fall kann vom Betreiber verlangt werden, angemessene Maßnahmen durchzuführen und dafür aufzukommen.″

Anmerkung: Um die Einhaltung des EMVG sicherzustellen, sind die Geräte wie in den IBM Handbüchern angegeben zu installieren und zu betreiben.

46 SAN16B-2 Installation, Service, and User’s Guide

People’s Republic of China Class A Electronic Emission Statement

Japan VCCI Class A ITE Electronic Emission Statement

Korea Class A Electronic Emission Statement

Notices 47

48 SAN16B-2 Installation, Service, and User’s Guide

Glossary

This glossary provides definitions for Fibre Channel and switch terminology used for IBM TotalStorage SAN switches and related products. It also provides additional definitions of technical terms and abbreviations. If you do not find the term you are looking for, see the IBM Terminology located at http://www.ibm.com/ibm/terminology/

This glossary includes terms and definitions from:

v Information Technology Vocabulary by

Subcommittee 1, Joint Technical Committee 1, of the International Organization for Standardization and the International Electrotechnical Commission (ISO/IEC JTC1/SC1). Definitions are identified by the symbol (I) after the definition; definitions taken from draft international standards, committee drafts, and working papers by ISO/IEC JTC1/SC1 are identified by the symbol (T) after the definition, indicating that final agreement has not yet been reached among the participating National Bodies of SC1.

The

following cross-reference conventions are

used in this glossary:

See Refers you to (a) a term that is the

expanded form of an abbreviation or acronym, or (b) a synonym or more preferred term.

See also

Refers you to a related term.

access control list (ACL). In computer security, a list

associated with an object that identifies all the subjects that can access the object and their access rights. For example, an access control list is a list that is associated with a file that identifies the users who can access the file and that identified the user’s access rights to that file.

ACL. See access control list.

address identifier. A 24–bit or 8–bit value used to

identify the source or destination of a frame.

alias. An alternate name for an element or group of

elements in the fabric. Aliases can be used to simplify the entry of port numbers and worldwide names (WWNs) when creating zones.

alias address identifier. An address identifier

recognized by a port in addition to its standard identifier. An alias address identifier can be shared by multiple ports.

alias AL_PA. An arbitrated loop physical address

(AL_PA) value recognized by a loop port (L_port) in addition to the AL_PA assigned to the port. See also arbitrated loop physical address.

alias server. A fabric software facility that supports

multicast group management.

AL_PA. See arbitrated loop physical address.

American National Standards Institute (ANSI). The

governing body for Fibre Channel standards in the U.S.

ANSI. See American National Standards Institute.

API. See application programming interface.

application programming interface (API). An

interface that allows an application program that is written in a high-level language to use specific data or functions of the operating system or another program.

application-specific integrated circuit (ASIC). A

computer chip designed for a particular application.

ARB. See arbitrative primitive signal.

arbitrative primitive signal (ARB). A primitive signal

that is transmitted as the fill word by a loop port (L_port) to indicate that the L_port is arbitrating to access to the loop. Applies only to the arbitrated loop topology.

arbitrated loop. A shared 100 MBps Fibre Channel

transport structured as a loop and supporting up to 126 devices and one fabric attachment. A port must successfully arbitrate before a circuit can be established.

arbitrated loop physical address (AL_PA). An 8–bit

value used to uniquely identify an individual port within a loop. A loop can have one or multiple AL_PAs.

arbitration. A method of gaining orderly access to a

shared-loop topology.

arbitration wait timeout value (AW_TOV). The

minimum time an arbitrating loop port (L_port) waits for a response before beginning loop initialization.

area number. A number that is assigned to each

potential port location in the switch. Used to distinguish ports that have the same port number but are on different port cards.

ASIC. See application-specific integrated circuit.

asynchronous transfer mode (ATM). A method of

transmission in which the sending and receiving of data is controlled by control characters such as a start bit and a stop bit, instead of by a timing sequence.

ATM . See asynchronous transfer mode.

autonegotiation. A universal mechanism to exchange

network capabilities between two Ethernet nodes. The exchange takes place at power-up (or link reset) time. It automatically establishes a link that takes advantage of the highest common denominator of the mutual capabilities of the two Ethernet nodes. The universal mechanism negotiates capabilities that include link speed, PHY types, and full duplex or half duplex.

autoranging. A power supply that accommodates

different input voltages and line frequencies.

AW_TOV. See arbitration wait timeout value.

backup FCS switch. The switch or switches assigned

as backup in case the primary fabric configuration server (FCS) switch fails. See also fabric configuration server switch and primary FCS switch.

bandwidth. (1) The total transmission capacity of a

cable, link, or system. Usually measured in bits per second (bps). (2) The range of transmission frequencies available to a network. See also throughput.

basic input/output system (BIOS). Code that controls

basic hardware operations, such as interactions with diskette drives, hard disk drives, and the keyboard.

BB_credit. See buffer-to-buffer credit.

beacon. When all the port light-emitting diodes (LEDs)

on a switch are set to flash from one side of the switch to the other, to enable identification of an individual switch in a large fabric. A switch can be set to beacon by a CLI command or through Web Tools.

beginning running disparity. The disparity at the

transmitter or receiver when the special character associated with an ordered set is encoded or decoded. See also disparity.

BER. See bit error rate.

BIOS. See basic input/output system.

BISR. Built-in self-repair.

BIST. Built-in self-test.

bit error rate (BER). The rate at which bits are

expected to be received in error. Expressed as the ratio of error bits to total bits transmitted. See also error.

blade. A component that provides application-specific

services and components. A blade is typically a hot swappable hardware device.

block. As applies to Fibre Channel, upper-level

application data that is transferred in a single sequence.

boot code. Software that initialized the system

environment during the early phase of the boot-up process. For example, boot code might determine the amount of available memory and how to access it.

boot flash. Flash memory that stores the boot code

and boot parameters. The processor runs its first instructions from boot flash. Data is cached in random access memory (RAM).

British thermal unit (Btu). The amount of heat

required to raise a pound of water by 1 degree Fahrenheit.

broadcast. The transmission of data from a single

source to all devices in the fabric, regardless of zoning. See also multicast and unicast.

Btu. See British thermal unit.

buffer-to-buffer credit. The number of frames that

can be transmitted to a directly-connected recipient or within an arbitrated loop. Determined by the number of receive buffers available. See also buffer-to-buffer flow control.

buffer-to-buffer flow control. Management of the

frame transmission rate in either a point-to-point topology or in an arbitrated loop. See also buffer-to-buffer credit.

CAM. Content addressable memory.

cache. A buffer that contains frequently accessed

instructions and data; it is used to reduce access time.

cascade. Two or more interconnected Fibre Channel

switches that can build large fabrics. Switches can be cascaded up to 239 switches, with a recommended maximum of seven inter-switch links (no path longer than eight switches). See also fabric and inter-switch link.

central processing unit (CPU). The part of a

computer that includes the circuits that control the interpretation and running of instructions. A CPU is the circuitry and storage that executes instructions. Traditionally, the complete processing unit was often regarded as the CPU, whereas today the CPU is often a microchip. In either case, the centrality of a processor or processing unit depends on the configuration of the system or network in which it is used.

50 SAN16B-2 Installation, Service, and User’s Guide

Challenge Handshake Authentication Protocol (CHAP). (1) An authentication protocol that protects

against eavesdropping by encrypting the user name and password. (2) Allows remote servers and clients to securely exchange authentication credentials.

chassis. The metal frame in which the switch and

switch components are mounted.

CIM. See Common Information Model

circuit. An established communication path between

two ports. Consists of two virtual circuits capable of transmitting in opposite directions. See also link.

class 1 service. The class of frame-switching service

for a dedicated connection between two communicating ports (also called ″connection-oriented service″). Includes acknowledgement of frame delivery or nondelivery.

class 2 service. A connectionless class of

frame-switching service that includes acknowledgement of frame delivery or nondelivery.

class 3 service. A connectionless class of

frame-switching service that does not include acknowledgement of frame delivery or nondelivery. Can be used to provide a multicast connection between the frame originator and recipients, with acknowledgement of frame delivery or nondelivery.

class 4 service. A connection-oriented service that

allows fractional parts of the bandwidth to be used in a virtual circuit.

class 6 service. A connection-oriented multicast

service geared toward video broadcasts between a central server and clients.

class F service. The class of frame-switching service

for a direct connection between two switches, allowing communication of control traffic between the E_Ports. Includes acknowledgement of data delivery or nondelivery.

class of service. A specified set of delivery

characteristics and attributes for frame delivery.

CLI. See command line interface.

client. A system or process that is dependent on

another system or process (usually called the server) to provide it with access to data, services, programs, or resources.

comma. A unique pattern (either 1100000 or 0011111)

used in 8b/10b encoding to specify character alignment within a data stream.

command line interface (CLI). Interface that depends

entirely on the use of commands, such as through Telnet or simple network management protocol (SNMP), and does not involve a graphical user interface.

Common Information Model (CIM). An

implementation-neutral, object-oriented schema for describing network management information. The Distributed Management Task Force (DMTF) develops and maintains CIM specifications.

community (SNMP). A relationship between a simple

network management protocol (SNMP) agent and a set of SNMP managers that defines authentication, access control, and proxy characteristics.

compact flash. Flash (temporary) memory that is

used in a manner similar to hard disk storage. It is connected to a bridging component that connects to the PCI bus of the processor. Not visible within the processor’s memory space.

control processor (CP). The central processing unit

that provides all control and management functions in a switch.

control processor card (CP card). The central

processing unit of the director/switch, which contains two control processor (CP) card slots to provide redundancy. Provides Ethernet, serial, and modem ports with the corresponding light-emitting diodes (LEDs).

CP. See control processor.

CP card. See control processor card.

CPU. See central processing unit.

credit. When applied to a switch, the maximum

number of receive buffers provided by a fabric port (F_port) or fabric loop port (FL_port) to its attached node port (N_port) or node loop port (NL_port), respectively, such that the N_port or NL_port can transmit frames without over-running the F_port or FL_port.

CRU. See customer replaceable unit

CSA. Canadian Standards Association.

customer replaceable unit (CRU). An assembly that

is replaced in its entirety by a customer when any one of its components fails. In contrast, a field replaceable unit (FRU) can only be replaced by a qualified service representative.

cut-through. A switching technique that allows the

route for a frame to be selected as soon as the destination address is received. See also route.

data rate. The rate at which data is transmitted or

received from a device. Interactive applications tend to require a high data rate, while batch applications can usually tolerate lower data rates.

Glossary 51

DB-9 connector. A 9–pin version of the RS–232C port

interface.

dc. Direct current.

defined zone configuration. The complete set of all

zone objects that are defined in the fabric. The defined configuration can include multiple zone configurations. See also enabled zone configuration and zone configuration.

DHCP. Dynamic Host Configuration Protocol.

disparity. The proportion of ones and zeros in an

encoded character. Neutral disparity means an equal number of each, positive disparity means a majority of ones, and negative disparity means a majority of zeros.

DLS. See dynamic load sharing.

DMA. See direct memory access.

DNS. Distributed name server.

domain_ID. Unique identifier for the switch in a fabric.

Usually automatically assigned by the switch, but can also be assigned manually. Can be any value between 1–239.

DRAM. See dynamic random access memory.

DTE. Data terminal equipment. Usually refers to a

terminal.

DWDM. Dense wavelength division multiplexing.

Allows more wavelengths to use the same fiber.

dynamic random access memory (DRAM). A

storage in which the cells require repetitive application of control signals to retain stored data.

edge fabric. A single fabric that uses two or more

switches as a core to interconnect multiple edge switches. Synonymous with dual-core fabric. See also resilient core.

edge switch. A switch whose main task is to connect

nodes into the fabric. See also core switch.

E_D_TOV. See error detect timeout value.

EE_credit. See end-to-end credit.

effective zone configuration. The particular zone

configuration that is currently in effect. Only one configuration can be in effect at once. The effective configuration is built each time a zone configuration is enabled.

EIA. Electronic Industries Alliance.

EIA rack. A storage rack that meets the standards set

by the Electronics Industries Alliance (EIA).

electromagnetic compatibility (EMC). The design

and test of products to meet legal and corporate specifications dealing with the emissions and susceptibility to frequencies in the radio spectrum. Electromagnetic compatibility is the ability of various electronic equipment to operate properly in the intended electromagnetic environment.

electromagnetic interference (EMI). Waves of

electromagnetic radiation, including but not limited to radio frequencies, generated by the flow of electric current.

electrostatic discharge (ESD). The flow of current

that results when objects having a static charge come into close enough proximity to discharge.

ELP. Extended link parameters.

ELWL. See extra long wavelength.

EMC. See electromagnetic compatibility.

EMI. See electromagnetic interference.

enabled zone configuration. The currently enabled

configuration of zones. Only one configuration can be enabled at a time. See also defined zone configuration and zone configuration.

end port. A port on an edge switch that connects a

device to the fabric.

end-to-end credit (EE_credit). The number of receive

buffers allocated by a recipient port to an originating port. Used by class 1 and class 2 services to manage the exchange of frames across the fabric between source and destination. See also end-to-end flow control and buffer-to-buffer credit.

end-to-end flow control. Governs flow of class 1 and

class 2 frames between node ports (N_ports). See also end-to-end credit.

E_port. See expansion port.

error. As applies to fibre channel, a missing or

corrupted frame, timeout, loss of synchronization, or loss of signal (link errors). See also loop failure.

error detect timeout value (E_D_TOV). The time that

the switch waits for an expected response before declaring an error condition. Adjustable in 1 microsecond increments from 2—10 seconds.

ESD. See electrostatic discharge.

exchange. The highest level Fibre Channel

mechanism used for communication between node

52 SAN16B-2 Installation, Service, and User’s Guide

ports (N_ports). Composed of one or more related sequences, and can work in either one or both directions.

expansion port (E_port). A port is designated an

expansion port (E_port) when it is used as an inter-switch expansion port to connect to the E_port of another switch, to build a larger switch fabric.

fabric. A collection of Fibre Channel switches and

devices, such as hosts and storage. Also referred to as a ″switched fabric.″

fabric login (FLOGI). The process by which a device

gains access to the fabric.

fabric loop port (FL_port). A fabric port that is loop

capable. Used to connect node loop ports (NL_ports) to the switch in a loop configuration.

Fabric Manager. An optionally licensed software

feature. Fabric Manager is a GUI that allows for fabric-wide administration and management. Switches can be treated as groups, and actions such as firmware downloads can be performed simultaneously.

fabric mode. One of the modes for a loop port

(L_port). An L_port is in fabric mode when it is connected to a port that is not loop capable and is using fabric protocol. See also loop port and loop mode.

fabric name. The unique identifier assigned to a fabric

and communicated during login and port discovery.

Fabric OS. An operating system made up of two

software components: the firmware that initializes and manages the switch hardware, and diagnostics.

fabric port (F_port). A port that is able to transmit

under fabric protocol and interface over links. Can be used to connect a node port (N_port) to a switch. See also fabric loop port and Fx_port.

Fabric Watch. An optionally licensed software feature.

Fabric Watch can be accessed through either the command line or Advanced Web Tools, and it provides the ability to set thresholds for monitoring fabric conditions.

failover. The process of passing control from one

redundant unit to another, in a nondisruptive manner.

FAN. Fabric address notification.

FC. See fibre channel.

FCA. See Fibre Channel arbitrated loop.

FC-AL. See Fibre Channel arbitrated loop.

FC-AL-3. The Fibre Channel Arbitrated Loop standard

defined by ANSI. Defined on top of the FC-PH standards.

FCC. Federal Communications Commission.

FC-FLA. The Fibre Channel Fabric Loop Attach

standard defined by ANSI.

FCP. See Fibre Channel protocol.

FC-PDLA. The Fibre Channel Private Loop Direct

Attach standard defined by ANSI. Applies to the operation of peripheral devices on a private loop.

FC-PH-1,2,3. The Fibre Channel Physical and

Signaling Interface standards defined by ANSI. (first, second, and third generations)

FC-PI. The Fibre Channel Physical Interface standard

defined by ANSI.

FCS switch. See fabric configuration server switch.

FC-SW-2. The second generation of the Fibre Channel

Switch Fabric standard defined by ANSI. Specifies tools and algorithms for the interconnection and initialization of Fibre Channel switches in order to create a multiswitch Fibre Channel fabric.

Fibre Channel (FC). The primary protocol used for

building SANs to transmit data between servers, switches, and storage devices. Unlike IP and Ethernet, Fibre Channel was designed to support the needs of storage devices of all types. It is a high-speed, serial, bidirectional, topology-independent, multiprotocol, and highly scalable interconnection between computers, peripherals, and networks.

Fibre Channel arbitrated loop (FC-AL). A standard

defined on top of the FC-PH standard. It defines the arbitration on a loop where several FC nodes share a common medium.

Fibre Channel protocol (FCP). The protocol for

transmitting commands, data, and status using Fibre Channel FC-FS exchanges and information units. Fibre Channel is a high-speed serial architecture that allows either optical or electrical connections at data rates from 265 Mbps up to 4–Gbps.

Fibre Channel service (FS). A service that is defined

by Fibre Channel standards and exists at a well-known address. For example, the Simple Name Server is a Fibre Channel service. See also Fibre Channel service protocol.

Fibre Channel service protocol (FSP). The common

protocol for all fabric services, transparent to the fabric type or topology. See also Fibre Channel service.

Fibre Channel shortest path first (FSPF). A routing

protocol used by Fibre Channel switches.

Glossary 53

Fibre Channel transport. A protocol service that

supports communication between Fibre Channel service providers. See also Fibre Channel service protocol.

field replaceable unit (FRU). An assembly that is

replaced in its entirety by a service representative when any one of its components fails. In some cases, a field replaceable unit can contain other field replaceable units.

File Transfer protocol (FTP). In Transmission Control

protocol/Internet protocol (TCP/IP), an application protocol used for transferring files to and from host computers.

fill word. An IDLE or ARB ordered set that is

transmitted during breaks between data frames to keep the Fibre Channel link active.

firmware. The basic operating system provided with

the hardware.

FLA. Fabric loop attach.

flash partition. Two redundant usable areas, called

partitions into which firmware can be downloaded in the

director/switch.

FLOGI. See fabric login.

FL_port. See fabric loop port.

F_port. See fabric port.

frame. The Fibre Channel structure used to transmit

data between ports. Consists of a start-of-frame delimiter, header, any optional headers, the data payload, a cyclic redundancy check (CRC), and an end-of-frame delimiter. There are two types of frames: link control frames (transmission acknowledgements, and so on) and data frames.

frame delimiter. A part of an ordered set that marks

frame boundaries and describes frame contents. See also ordered set.

FRU. See field replaceable unit.

FS. See Fibre Channel service.

FSP. See Fibre Channel service protocol.

FSPF. See Fibre Channel shortest path first.

FTP. See File Transfer protocol.

full duplex. A mode of communication that allows the

same port to simultaneously transmit and receive frames. See also half duplex.

Fx_port. A fabric port that can operate as either a

fabric port (F_port) or fabric loop port (FL_port). See also fabric port and fabric loop port.

gateway. Hardware that connects incompatible

networks by providing the necessary translation for both hardware and software.

GBIC. See gigabit interface converter.

Gbps. Gigabits per second.

GBps. Gigabytes per second.

generic port (G_port). A generic port that can operate

as either an expansion port (E_port) or a fabric port (F_port). A port is defined as a G_port when it is not yet connected or has not yet assumed a specific function in the fabric.

gigabit interface converter (GBIC). A removable

serial transceiver module designed to provide gigabaud capability for fibre channel (FC) and other products that use the same physical layer.

G_port. See generic port.

HA. See high availability.

half duplex. A mode of communication that allows a

port to either transmit or receive frames at any time, but not simultaneously (with the exception of link control frames, which can be transmitted at any time). See also full duplex.

hard address. The arbitrated loop physical address

(AL_PA) that a node loop port (NL_port) attempts to acquire during loop initialization.

hardware translative mode. Method for achieving

address translation. The two hardware translative modes that are available to a QuickLoop-enabled switch are standard translative mode and QuickLoop mode. See also standard translative mode and QuickLoop mode.

HBA. See host bus adapter.

high availability. An attribute of equipment that

identifies it as being capable of operating well in excess of 99 percent of the time. High Availability is typically identified by the number of nines in that percentage. For example, a switch that is rated at five nines would be capable of operating 99.999 percent of the time without failure.

host. A computer that is connected to a network and

provides an access point to that network. The host can be a client, a server, or both a client and server simultaneously.

54 SAN16B-2 Installation, Service, and User’s Guide

host bus adapter (HBA). The interface card between

a server or workstation bus and the Fibre Channel network.

hot-pluggable. A field replaceable unit (FRU) that can

be removed or installed without turning the system off. Also called ″hot swappable.″

hot swappable. See hot-pluggable.

HTTP. See Hypertext Transfer Protocol.

hub. A Fibre Channel device that connects nodes into

a logical loop by using a physical star topology. Hubs will automatically recognize an active node and insert the node into the loop. A node that fails or is powered off is automatically removed from the loop.

Hypertext Transfer Protocol (HTTP). In the Internet

suite of protocols, the protocol that is used to transfer and display hypertext and XML documents on the Web.

ID. Identification.

idle. Continuous transmission of an ordered set over a

Fibre Channel link when no data is being transmitted, to keep the link active and maintain bit, byte, and word synchronization.

in-band. Transmission of management protocol over

the Fibre Channel.

initiator. A server or workstation on a Fibre Channel

network that initiates communications with storage devices. See also target.

in-order delivery (IOD). A parameter that, when set,

guarantees that frames are either delivered in order or dropped.

Internet protocol (IP). A protocol that routes data

through a network or interconnected networks. Internet Protocol (IP) acts as an intermediary between the higher protocol layers and the physical network.

inter-switch link (ISL). A Fibre Channel link that

connects two switches (a link from the expansion port (E_port) of one switch to the E_port of another).

IOD. See in-order delivery.

IP. See internet protocol.

ISL. See inter-switch link.

ISL Trunking. A feature that enables distribution of

traffic over the combined bandwidth of up to four inter-switch links (ISLs) (between adjacent switches), while preserving in-order delivery. A set of trunked ISLs

is called a trunking group; each port employed in a trunking group is called a trunking port. See also master port.

isolated E_port. An expansion port (E_port) that is

online but not operational between switches due to overlapping domain ID or nonidentical parameters such as error delay timeout values (E_D_TOVs). See also expansion port.

JBOD. Just a bunch of disks.

K28.5. A special 10–bit character used to indicate the

beginning of a transmission word that performs fibre channel control and signaling functions. The first seven bits of the character are the comma pattern. See also comma.

kernel flash. Flash memory that stores the bootable

kernel code and is visible within the memory space of the processor. Data is stored as raw bits.

key. A string of data (usually a numeric value) shared

between two entities and used to control a cryptographic algorithm. Usually selected from a large pool of possible keys to make unauthorized identification of the key difficult. See also key pair.

key pair. In public key cryptography, a pair of keys

consisting of a public and private key of an entity. The public key can be publicized, but the private key must be kept secret.

LAN. See local area network.

latency. The period of time required to transmit a

frame, from the time it is sent until it arrives.

LED. See light-emitting diode.

light-emitting diode (LED). An electronic component

that gives off visible or infrared light when electricity is passed through it. It is used to indicate the status of elements on a switch.

link. As applies to fibre channel, a physical connection

between two ports, consisting of both transmit and receive fibers. See also circuit.

link services. A protocol for link-related services.

LIP. See loop initialization primitive.

LM_TOV. See loop master timeout value.

Glossary 55

local area network (LAN). A network that connects

several devices into a limited area (such as a single building or campus) and that can be connected to a larger network.

logical unit number (LUN). An identifier used on a

SCSI bus to distinguish among devices (logical units) with the same SCSI ID.

long wavelength (LWL). A type of fiber optic cabling

that is based on 1300 mm lasers and supports link speeds of 1.0625 Gbps. Can also refer to the type of GBIC or SFP. See also short wavelength.

loop. A configuration of devices that are connected to

the fabric by way of a fabric loop port (FL_port) interface card.

loop circuit. A temporary bidirectional communication

path established between loop ports (L_ports).

loop failure. Loss of signal within a loop for any

period of time, or loss of synchronization for longer than the timeout value.

loop_ID. A hexadecimal value representing one of the

127 possible arbitrated loop physical address (AL_PA) values in an arbitrated loop.

loop initialization. The logical procedure used by a

loop port (L_port) to discover its environment. Can be used to assign arbitrated loop physical address (AL_PA) addresses, detect loop failure, or reset a node.

loop initialization primitive (LIP). The signal used to

begin initialization in a loop. Indicates either loop failure or resetting of a node.

looplet. A set of devices connected in a loop to a port

that is a member of another loop.

loop master timeout value (LM_TOV). The minimum

time that the loop master waits for a loop initialization sequence to return.

loop mode. One of the modes for a loop port (L_port).

An L_port is in loop mode when it is in an arbitrated loop and is using loop protocol. An L_port in loop mode can also be in participating mode or nonparticipating mode. See also loop port, fabric mode, participating mode, and nonparticipating mode.

loop port (L_port). A node port (NL_port) or fabric

port (FL_port) that has arbitrated loop capabilities. An L_port can be either in fabric mode or loop mode. See also fabric mode , loop mode, nonparticipating mode, and participating mode.

loop port state machine (LPSM). The logical entity

that performs arbitrated loop protocols and defines the behavior of loop ports (L_ports) when they require access to an arbitrated loop.

L_port. See loop port.

LPSM. See loop port state machine.

LSAN. Logical storage area network. An LSAN

enables device and storage connectivity that spans two or more fabrics.

LSR. Link state record.

LSU. Link state update.

LUN. See logical unit number.

LWL. See long wavelength.

management information base (MIB). A simple

network management protocol (SNMP) structure to help with device management, providing configuration and device information.

master port. As relates to trunking, the port that

determines the routing paths for all traffic flowing through the trunking group. One of the ports in the first inter-switch link (ISL) in the trunking group is designated as the master port for that group. See also ISL Trunking.

MIB. See management information base.

multicast. The transmission of data from a single

source to multiple specified node ports (N_ports), as opposed to all the ports on the network. See also broadcast and unicast.

multimode. A fiber optic cabling specification that

allows up to 500 m (1640.5 ft) between devices.

name server. Frequently used to indicate Simple

Name Server. See also simple name server.

NEMA. National Electrical Manufacturers Association.

network time protocol (NTP). An Internet standard

protocol that provides synchronization of computer clock times in a network with times provided by radio or atomic clocks on the Internet.

NL_port. See node loop port.

node. A Fibre Channel device that contains a node

port (N_port) or node loop port (NL_port).

node loop port (NL_port). A node port that has

arbitrated-loop capabilities. Used to connect an equipment port to the fabric in a loop configuration through an FL_Port.

node name. The unique identifier for a node,

communicated during login and port discovery.

56 SAN16B-2 Installation, Service, and User’s Guide

node port (N_port). A port on a node that can

connect to a Fibre Channel port or to another N_Port in a point-to-point connection.

nonparticipating mode. A mode in which a loop port

(L_port) in a loop is inactive and cannot arbitrate or send frames, but can retransmit any received transmissions. This mode is entered if there are more than 127 devices in a loop and an arbitrated loop physical address (AL_PA) cannot be acquired. See also participating mode.

nonvolatile random access memory (NVRAM).

Random access memory (storage) that retains its contents after the electrical power to the machine is shut off. A specific part of NVRAM is set aside for use by the system ROS for the boot device list.

N_port. See node port.

NTP. See network time protocol

NVRAM. See nonvolatile random access memory.

Nx_port. A node port that can operate as either a

node port (N_port) or node loop port (NL_port). See also node port and node loop port.

operating system (OS). A collection of system

programs that control the overall operation of a computer system.

ordered set. A transmission word that uses 8b/10b

mapping and begins with the K28.5 character. Ordered sets occur outside of frames, and include frame delimiters, primitive signals, and primitive sequences. Ordered sets are used to differentiate Fibre Channel control information from data frames and to manage the transport of frames. See also frame delimiter, primitive signal, and primitive sequence.

OS. See operating system.

out-of-band. Transmission of management protocol

outside of the Fibre Channel network, usually over Ethernet.

packet. A set of information transmitted across a

network. See also frame.

parallel. The simultaneous transmission of data bits

over multiple lines.

participating mode. A mode in which a loop port

(L_port) in a loop has a valid arbitrated loop physical address (AL_PA) and can arbitrate, send frames, and retransmit received transmissions. See also nonparticipating mode.

path selection. The selection of a transmission path

through the fabric. Switches use the Fibre Channel shortest path first (FSPF) protocol.

PDU. Power distribution unit.

Performance Monitoring. A software feature that

provides error and performance information to the administrator and user for use in storage management.

phantom address. An arbitrated loop physical

address (AL_PA) value that is assigned to a device that is not physically in the loop. Also known as phantom AL_PA.

phantom device. A device that is not physically in an

arbitrated loop, but is logically included through the use of a phantom address.

PLDA. See private loop direct attach.

PLOGI. See port login.

P/N. Part number.

point-to-point. A Fibre Channel topology that employs

direct links between each pair of communicating entities. See also topology.

port cage. The metal casing extending out of the

optical port on the switch, and in which the gigabit interface converter (GBIC) or small form-factor pluggable (SFP) can be inserted.

port card. A hardware component that provides a

platform for field-replaceable, hot swappable ports.

port login (PLOGI). The port-to-port login process by

which initiators establish sessions with targets. See also fabric login.

port module. A collection of ports in a switch.

port_name. The unique identifier assigned to a Fibre

Channel port. Communicated during login and port discovery.

POST. See power-on self-test.

PPP. Point-to-Point Protocol.

power-on self-test (POST). A series of diagnostics

that are automatically run by a device when the power is turned on.

primary FCS switch. Primary fabric configuration

server switch. The switch that actively manages the configuration and security parameters for all switches in the fabric. See also backup FCS switch and FCS switch.

primitive sequence. A part of an ordered set that

indicates or initiates port states. See also ordered set.

Glossary 57

primitive signal. A part of an ordered set that

indicates events. See also ordered set.

principal switch. The switch that assumes the

responsibility to assign domain IDs. The role of principal switch is negotiated after a “build fabric” event.

private device. A device that supports arbitrated loop

protocol and can interpret 8–bit addresses, but cannot log into the fabric.

private loop. An arbitrated loop that does not include

a participating fabric loop port (FL_port).

private key. The secret half of a key pair.

private loop direct attach (PLDA). A subset of fibre

channel standards for the operation of peripheral devices.

private NL_port. A node loop port (NL_port) that

communicates only with other private NL_ports in the same loop and does not log into the fabric.

protocol. A defined method and a set of standards for

communication.

public device. A device that supports arbitrated loop

protocol, can interpret 8–bit addresses, and can log into the fabric.

public loop. An arbitrated loop that includes a

participating fabric loop port (FL_port), and can contain both public and private node loop ports (NL_ports).

public NL_port. A node loop port (NL_port) that logs

into the fabric, can function within either a public or private loop, and can communicate with either private or public NL_ports.

quad. A group of four adjacent ports that share a

common pool of frame buffers.

QuickLoop. (1) A software feature that makes it

possible to allow private devices within loops to communicate with public and private devices across the fabric through the creation of a larger loop. (2) The arbitrated loop created using this software. A QuickLoop can contain a number of devices or looplets; all devices in the same QuickLoop share a single arbitrated loop physical address (AL_PA) space.

QuickLoop mode. A hardware translative mode that

allows private devices to communicate with other private devices across the fabric. See also hardware translative mode and standard translative mode.

RAID. See redundant array of independent disks.

RAM. See random access memory.

random access memory (RAM). A temporary storage

location in which the central processing unit (CPU) stores and executes its processes.

R_A_TOV. See resource allocation timeout value.

read only memory (ROM). Memory in which stored

data cannot be changed by the user except under special conditions.

receiver ready (R_RDY). A primitive signal indicating

that the port is ready to receive a frame.

redundant array of independent disks (RAID). A

collection of disk drives that appear as a single volume to the server and are fault tolerant through mirroring or parity checking.

registered state change notification (RSCN). A

switch function that allows notification of fabric changes to be sent from the switch to specified nodes.

remote fabric. A fabric that spans across wide area

networks (WANs) by using protocol translation (a process also known as tunneling) such as fibre channel over asynchronous transfer mode (ATM) or fibre channel over Internet protocol (IP).

remote switch. A optional feature for long distance

fabrics, requireing a Fibre Channel to ATM or SONET gateway.

request rate. The rate at which requests arrive at a

servicing entity. See also service rate.

resilience. A fabric’s ability to adapt to or tolerate a

failure of a component within the fabric.

resilient core. A single fabric that uses two or more

switches as a core to interconnect multiple edge switches. Synonymous with dual-core fabric.

resource allocation timeout value (R_A_TOV). Used

to time out operations that depend on the maximum possible time that a frame can be delayed in a fabric and still be delivered. This value is adjustable in one microsecond increments from 10—120 seconds.

resource recover timeout value (RR_TOV). The

minimum time a target device in a loop waits after a loop initialization primitive (LIP) before logging out a small computer systems interface (SCSI) initiator. See also error detect timeout value and resource allocation timeout value.

RLS probing. Read link status of the arbitrated loop

physical addresses (AL_PAs).

58 SAN16B-2 Installation, Service, and User’s Guide

ROM. See read only memory.

route. As applies to a fabric, the communication path

between two switches. Can also apply to the specific path taken by an individual frame, from source to destination. See also Fibre Channel shortest path first.

routing. The assignment of frames to specific switch

ports, according to frame destination.

R_RDY. See receiver ready.

RR_TOV. See resource recovery timeout value.

RS-232 port. An older standard for a port that has

been replaced by EIA/TIA-232-E. Used to connect data terminal equipment (DTE) and data communications equipment (DCE) devices for communication between components, terminals, and modems. See also DB–9 connector, DCE port, and DTE port.

RSCN. See registered state change notification.

rw. Read-write.

SAN. See storage area network.

SC. Standard connector.

SCSI. See small computer systems interface.

SCSI Enclosure Services (SES). A subset of the

small computer systems interface (SCSI) protocol used to monitor temperature, power, and fan status for enclosure devices.

SDRAM. See synchronous dynamic random access

memory.

Secure Fabric OS. An optionally-licensed software

product that runs on top of the Fabric OS and provides customizable security restrictions through local and remote management channels on a switch.

secure sockets layer (SSL). A security protocol that

provides communication privacy. SSL enables client/server applications to communicate in a way that is designed to prevent eavesdropping, tampering, and message forgery.

sequence. A group of related frames transmitted in the

same direction between two node ports (N_ports).

service rate. The rate at which an entity can service

requests. See also request rate.

SES. See SCSI Enclosure Services.

SFP. See small form-factor pluggable.

short wavelength (SWL). A type of fiber optic cabling

that is based on 850 mm lasers and supports 1.0625

Gbps link speeds. Can also refer to the type of gigabit interface converter (GBIC) or small form-factor pluggable (SFP). See also long wavelength.

SID. The 3–byte source ID of the originator device, in

the 0xDomainAreaALPA format.

SID-DID. Source identifier-destination identifier.

SIMMS. Single in-line modules.

simple name server (SNS). A switch service that

stores names, addresses, and attributes for up to 15 minutes, and provides them as required to other devices in the fabric. SNS is defined by Fibre Channel standards and exists at a well-known address. Can also be referred to as directory service. See also Fibre Channel service.

simple network management protocol (SNMP). In

the Internet suite of protocols, a network management protocol that is used to monitor routers and attached networks. SNMP is an application layer protocol. Information on devices managed is defined and stored in the application’s Management Information Base (MIB).

single mode. The fiber optic cabling standard that

corresponds to distances of up to 10 km (6.214 mi) between devices.

small computer systems interface (SCSI). A parallel

bus architecture and a protocol for transmitting large data blocks up to a distance of 15—25 m (49—82 ft).

small form-factor pluggable (SFP). An optical

transceiver used to convert optical and electrical signals between optical fiber cables and switches.

SNMP. See simple network management protocol.

SNMPv1. The original standard for SNMP, now labeled

v1.

SNS. See simple name server.

SOF. Start-of-frame.

SSL. See secure sockets layer.

standard translative mode. A hardware translative

mode that allows public devices to communicate with private devices across the fabric. See also hardware translative mode and QuickLoop mode.

storage. A device used to store data, such as a disk

or tape.

storage area network (SAN). A network of systems

and storage devices that communicate using Fibre Channel protocols. See also fabric.

subordinate switch. All switches in the fabric other

than the principal switch. See also principal switch.

Glossary 59

switch. Hardware that routes frames according to

Fibre Channel protocol and is controlled by software.

switch name. The arbitrary name assigned to a

switch.

switch port. A port on a switch. Switch ports can be

expansion ports (E_ports), fabric ports (F_ports), or fabric loop ports (FL_ports).

SWL. See short wavelength.

synchronous dynamic random access memory (SDRAM). The main memory for the switch. Used for

volatile storage during switch operation.

target. A storage device on a Fibre Channel network.

IBM SAN16B-2 User And Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual