IBM 2109 Model M12 User Manual

IBM TotalStorage SAN Switch

2109 Model M12 User’s Guide

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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.

GC26-7468-02

IBM TotalStorage SAN Switch

2109 Model M12 User’s Guide



GC26-7468-02

Note:

Before using this information and the product it supports, read the general information in “Safety and environmental notices”

on page xi and “Notices” on page 51.

Third Edition (May 2003)

This edition replaces GC26-7493-01.

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

Figures ...........................vii

Tables ............................ix

Safety and environmental notices .................xi

Safety label checks .......................xi

Environmental notices and statements ................xiii

Laser safety .........................xiii

Battery notice ........................xiv

Fire suppression systems ....................xiv

Product recycling .......................xiv

Product disposal .......................xiv

About this document ......................xv

Who should read this document...................xv

Additional information ......................xv

2109 Model C36 with Model M12 library...............xv

Related documents ......................xv

Web sites..........................xvi

Getting help .........................xvi

Getting software updates ....................xvi

How to send your comments ..................xvii

Introduction ..........................1

Product overview ........................1

Throughput..........................2

Link distance .........................2

SFP fiber optic transceivers....................2

System design overview ......................3

High availability ........................4

Reliability ..........................4

Serviceability .........................5

Ports ............................5

Numbering ..........................6

Rack mounting ........................6

Cooling system ........................6

Cable management.......................7

Worldwide name LED card ....................7

Power distribution system .....................7

Power distribution strategy ....................8

ac input ...........................8

dc outputs ..........................8

2N power architecture......................8

CP blade assembly........................9

CPU subsystem ........................9

Configuration ........................10

Management.........................10

Switch blade assembly ......................11

Switch blade assembly design ..................11

Fault monitoring and diagnostics ..................12

Diagnostic tests .......................12

System status indicators ....................12

Software features ........................13

Fabric OS..........................14

Interoperability ........................15

Security ..........................15

Network manageability .....................15

Field replaceable units (FRUs) ...................16

Appendix A. Product specifications ................17

2109 Model M12 components ...................17

Physical dimensions ......................17

2109 Model M12 and component weights ..............17

2109 Model C36 with Model M12 specifications .............18

16-port card specifications....................18

CP card specifications .....................18

Facility specifications.......................20

Power specifications .......................21

Environmental requirements ....................22

General specifications ......................22

Regulatory specifications .....................23

Appendix B. Safety certifications and regulatory compliance ......25

Safety ............................25

EMI/EMC ...........................25

Immunity ..........................26

Appendix C. Danger and caution notice translations..........27

Arabic ............................27

Brazilian-Portuguese.......................28

Chinese, simplified .......................29

Chinese, traditional .......................30

Croatian ...........................31

Czech ............................32

Danish ............................33

Finnish ............................34

French ............................35

German ...........................36

Greek ............................37

Hebrew............................38

Hungarian...........................40

Italian ............................41

Japanese ...........................42

Korean ............................43

Macedonian ..........................44

Portuguese ..........................45

Russian ...........................46

Slovak ............................47

Slovenian ...........................48

Spanish ...........................49

Swedish ...........................50

Notices ...........................51

Trademarks ..........................52

Electronic emission statements ...................52

Federal Communications Commission (FCC) statement .........52

Industry Canada compliance statement ...............52

Chinese Class A compliance statement ...............52

European Community compliance statement .............53

iv IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Germany compliance statement..................53

Japanese Voluntary Control Council for Interference (VCCI) class 1 statement 54

Korean Government Ministry of Communication (MOC) statement .....54

Taiwan class A compliance statement ...............54

Glossary ...........................55

Index ............................69

Contents v

vi IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Figures

1. Safety label on the 2109 Model M12........................xii

2. Linecord caution label .............................xii

3. SFP label (front view) .............................xii

4. SFP label (back view) .............................xiii

5. 2109 Model M12 (cable side and noncable side) ...................4

viii IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Tables

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

2. Power distribution system specifications.......................7

3. Power supply configurations ...........................9

4. Cable side LEDs ...............................12

5. Noncable side LEDs .............................13

6. Physical dimensions of the 2109 Model M12 ....................17

7. Component weights..............................17

8. 2109 Model C36 with Model M12 specifications ...................18

9. Memory specifications .............................19

10. Battery specifications .............................19

11. Terminal serial port pinouts ...........................19

12. Modem serial port pinouts ...........................20

13. Power specifications .............................21

14. Environmental requirements...........................22

15. General specifications .............................22

16. Regulatory specifications ............................23

x IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Safety and environmental notices

Safety notices are printed throughout this document.

A danger notice indicates the presence of a hazard that has the potential of causing

death or serious personal injury.

A caution notice indicates the presence of a hazard that has the potential of causing

moderate or minor personal injury.

An attention notice indicates the possibility of damage to a program, device,

system, or data.

For translations of danger notices and caution notices, see Appendix C, “Danger

and caution notice translations”, on page 27. The notices are listed in numeric order

based on their IDs, which are displayed in parentheses at the end of each notice.

See the following examples of danger notices and caution notices for the location of

the ID numbers.

DANGER

To prevent possible electrical shock during an electrical storm, do not connect or disconnect cables or station protectors for communications lines, display stations, printers, or telephones. (1)

CAUTION:

A lithium battery can cause fire, explosion, or a severe burn. Do not recharge,

disassemble, heat above 100°C (212°F), solder directly to the cell, incinerate,

or expose cell contents to water. Keep away from children. Replace only with

the part number specified for your system. Use of another battery may

present a risk of fire or explosion. The battery connector is polarized; do not

attempt to reverse the polarity. Dispose of the battery according to local

regulations. (1)

Safety label checks

Perform the following safety label checks:

1. Verify that the safety label shown in Figure 1 on page xii is installed on the 2109 Model M12.

Figure 1. Safety label on the 2109 Model M12

2. Verify that the linecord safety label shown in Figure 2 is installed on the power supply of the 2109 Model M12.

CAUTION: This unit may have two linecords. To remove all power, disconnect both linecords. (1)

PSU1 PSU2

18P4036

> 240

P/N

SJ000620

Figure 2. Linecord caution label

3. Verify that the SFP label shown in Figure 3 and Figure 4 on page xiii is installed on the 2109 Model M12.

Figure 3. SFP label (front view)

xii IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

SJ000317

Figure 4. SFP label (back view)

Environmental notices and statements

This section describes the environmental notices and statements.

Laser safety

CAUTION:

In the United States use only GBIC units or Fibre-Optic products that comply with FDA radiation performance standards, 21 CFR Subchapter J. Internationally use only GBIC units or Fibre-Optic products that comply with IEC standard 825-1. Optical products that do not comply with these standards may produce light that is hazardous to the eyes.

This unit might contain a single-mode or a multimode transceiver Class 1 laser product. The transceiver complies with IEC 825-1 and FDA 21 CFR 1040.10 and

1040.11. The transceiver must be operated under the recommended operating conditions.

SJ000314

SJ000327

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.

Usage restrictions

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

Safety and environmental notices xiii

Battery notice

CAUTION: A lithium battery can cause fire, explosion, or a severe burn. Do not recharge, disassemble, heat above 100°C (212°F), solder directly to the cell, incinerate, or expose cell contents to water. Keep away from children. Replace only with the part number specified for your system. Use of another battery may present a risk of fire or explosion. The battery connector is polarized; do not attempt to reverse the polarity. Dispose of the battery according to local regulations. (3)

Fire suppression systems

A fire suppression system is the responsibility of the customer. The customer’s own insurance underwriter, local fire marshal, or a local building inspector, or both, should be consulted in selecting a fire suppression system that provides the correct level of coverage and protection. IBM designs and manufactures equipment to internal and external standards that require certain environments for reliable operation. Because IBM does not test any equipment for compatibility with fire suppression systems, IBM does not make compatibility claims of any kind nor does IBM provide recommendations on fire suppression systems.

Product recycling

This unit contains recyclable materials. These materials should be recycled where processing sites are available and according to local regulations. In some areas, IBM provides a product take-back program that ensures proper handling of the product. Contact your IBM representative for more information.

Product disposal

This unit might contain batteries. Remove and discard these batteries, or recycle them, according to local regulations.

xiv IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

About this document

This document introduces the IBM®TotalStorage™SAN Switch 2109 Model M12 (hereafter referred to as the 2109 Model M12).

Who should read this document

This document is intended for network and system administrators whose responsibilities include administering and managing a storage area network (SAN).

Additional information

This section contains the following information:

v A list of the documents in the 2109 Model C36 with Model M12 library v A list of the related documents v The available Web sites v Instructions on how to get help v Instructions on how to get software updates v Information about how to send your comments

2109 Model C36 with Model M12 library

The following documents contain information related to this product:

v IBM TotalStorage SAN Cabinet 2109 Model C36 with Model M12 Installation and

Service Guide, GC26-7467

v IBM TotalStorage SAN Switch 2109 Model M12 User’s Guide, GC26-7468 (this

book)

Web sites

product and model numbers.

Table 1. Brocade and IBM product and model number matrix

Brocade model number IBM product and model number

Silkworm 2010 3534 Model 1RU Silkworm 2400 2109 Model S08 Silkworm 2800 2109 Model S16 Silkworm 3200 3534 Model F08 Silkworm 3800 2109 Model F16 Silkworm 3900 2109 Model F32 Silkworm 12000 2109 Model M12

For detailed information about models and firmware that the switch supports, see the following Web site:

www.ibm.com/storage/fcswitch/ For detailed information about Fibre Channel standards, see the Fibre Channel

Association Web site at: www.fibrechannel.com/

For a directory of worldwide contact information, including technical support, see the following Web site:

www.ibm.com/contact/

Getting help

Contact your switch supplier for technical support. This includes support of hardware, all product repairs, and ordering of spare components.

Be prepared to provide the following information to the support personnel:

v The switch serial number v The switch worldwide name v The topology configuration v Any output from the supportShow Telnet command v A detailed description of the problem v Any troubleshooting steps that were already performed

Getting software updates

Contact your software vendor for software updates and maintenance releases. For utility programs to facilitate loading firmware, sample Fabric Watch

configurations, and management information base (MIB) files for switch management by simple network management protocol (SNMP), see the following Web site:

www.storage.ibm.com/ibmsan/products/sanfabric.htm

xvi IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

How to send your comments

Your feedback is important to help us provide the highest quality of information. If you have any comments about this document, you can submit them in one of the following ways:

v E-mail

Submit your comments electronically to: starpubs@us.ibm.com Be sure to include the name and order number of the document and, if

applicable, the specific location of the text that you are commenting on, such as a page number or table number.

v Mail or fax

Fill out the Readers’ Comments form (RCF) at the back of this document and return it by mail or fax (1-800-426-6209) or give it to an IBM representative. If the RCF has been removed, you can address your comments to:

International Business Machines Corporation RCF Processing Department Dept. M86/Bldg. 050-3 5600 Cottle Road San Jose, CA 95193-0001 U.S.A.

About this document xvii

xviii IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Introduction

Product overview

| | |

This chapter describes the TotalStorage SAN Switch 2109 Model M12, hereafter referred to as the 2109 Model M12. It provides the following information:

v “Product overview” v “System design overview” on page 3 v “Power distribution system” on page 7 v “CP blade assembly” on page 9 v “Switch blade assembly” on page 11 v “Fault monitoring and diagnostics” on page 12 v “Software features” on page 13 v “Field replaceable units (FRUs)” on page 16

The 2109 Model M12 represents the next generation of advanced Fibre Channel switches that are used to intelligently interconnect storage devices, hosts, and servers in a storage area network (SAN). It is a revolutionary product, a dual 64-port Fibre Channel switch that delivers unprecedented performance, scalability, flexibility, functionality, reliability, and availability.

v The 2109 Model M12 delivers a very high-density port, rack-ready solution to

drive cost-effective SAN.

v The dual switch capability allows either one or two 64-port switches per chassis.

You can interconnect the switches to create a high port count solution, or you can use them in a dual fabric, high availability topology.

v The 2109 Model M12 supports 1 Gbps and 2 Gbps auto-sensing Fibre Channel

ports. Trunking technology groups up to four ports together to create high performance 8 Gbps inter-switch links (ISL) trunks between switches.

v Universal ports self-configure as expansion ports (E_ports), fabric ports (F_ports),

or fabric loop ports (FL_ports).

v Small form-factor pluggable (SFP) optical transceivers support any combination

of short wavelength (SWL) and long wavelength (LWL) optical media on a single switch module.

v The 2109 Model M12 offers a high availability platform for mission-critical

SAN-designed applications.

v Dual redundant control processors (CPs) provide high availability and enable

nondisruptive software upgrades.

v The 2109 Model M12 offers forward and backward compatibility with all 3534 and

2109 series switches.

v The Fabric operating system (OS) delivers distributed intelligence throughout the

network and enables a wide range of value-added applications including Extended Fabrics, Fabric Access, Fabric Watch, Remote Switch, Web Tools, Secure Fabric OS, Advanced Zoning, and Advanced Security feature.

v High availability redundant design, extensive diagnostics, and system monitoring

capabilities integrated with Fabric OS management tools deliver unprecedented reliability, availability, and serviceability.

Throughput

Link distance

The 2109 Model M12 is a nonblocking core fabric switch. It never prevents a server from being able to connect to storage, even under congestion. The backplane bandwidth between ports on a 2109 Model M12 is sufficient to allow traffic to flow at full bandwidth.

The 2109 Model M12 provides continuous and sustained bandwidth to all ports in a single or dual 32-port or 64-port switch scenario at their rated line speed. Throughput is 2.125 Gbps inbound and outbound per port. All ports can be simultaneously loaded for up to 100% utilization at full bandwidth. The backplane can handle future support for a 128-port switch, 10 bps Fibre Channel, IP connectivity, application processing and Infiniband.

Each port on the 2109 Model M12 is auto-sensing and supports 1 Gbps or 2 Gbps speeds. You can manually set the ports to support either 1 Gbps or 2 Gbps links. The ports perform speed-matching, which allows 1 Gbps and 2 Gbps links to mix on any route within the fabric. When there is 1 Gbps in and 2 Gbps out, the ASIC delays transmitting the outbound frame until half the frame is received at 1 Gbps. With 2 Gbps in and 1 Gbps out, the ASIC delays releasing the buffer to ensure that the 1 Gbps transmit port has adequate time to empty it.

The 2109 Model M12 operates at up to 10 km (6.21 mi) at both 1 Gbps and 2 Gbps speed settings and supports LWL SFPs and single-mode fiber.

By using the Extended Fabrics optional software feature, the switch operates at distances greater than 10 km (6.21 mi) by using various methods. The switch leverages the current dense wavelength division multiplexing (DWDM) certification and is certified to interoperate with equipment from Optical Networks, Cisco Systems, Inc., Nortel Networks, and other leading vendors.

The switch operates at near full link speed at distances up to 100 km (62.13 mi) for 1 Gbps or 50 km (31.06 mi) for 2 Gbps speeds using the Extended Fabrics feature.

For information about Extended Fabrics, see the Brocade Distributed Fabric User’s

Guide.

SFP fiber optic transceivers

Each blade assembly supports up to 16 SFP fiber optic transceivers that convert electrical signals to optical signals (and optical signals to electrical signals) and are capable of transmitting at both 1 Gbps and 2 Gbps speeds.

Each SFP fiber optic transceiver supports 850 nm SWL, on multimode fiber optic cable, or 1310 nm LWL, on single mode fiber optic cable. These miniature optical transceivers meet the high port density that is available in the 2109 Model M12, deliver twice the port density of standard removable gigabit interface converter (GBIC) transceivers, and are encased in metal or shielded plastic to ensure low emissions and high thermal management. SFP devices are hot-swappable and connections are through industry-standard LC connectors.

2 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

System design overview

The 2109 Model M12 is highly available, modular, and scalable. High availability features include:

v Redundant CPs and CP hot-swappable replacements v Dual redundant ac input and hot-swappable power supplies in the redundant

power subsystem

v Hot-swappable blowers in the redundant cooling system v Hot-swappable switch modules

The modular multi-blade assembly chassis of the 2109 Model M12 consists of: v Up to eight hot-swappable 16-port switch blade assemblies that deliver up to two

separate 64-port Fibre Channel switches in a single chassis. Each 64-port switch uses four blade assemblies.

v Two slots for CP blade assemblies

A single active CP can control both logical switches in the chassis.

v Modular hot-swappable field replaceable units (FRUs):

– Switch blade assembly – CP blade assembly – SFP optical transceivers – Blower assembly – Power supply

v Cables, blade assemblies, and power supplies that are serviced from the cable

side of the switch, and blowers that are serviced from the noncable side. See Figure 5 on page 4, which illustrates the cable side and noncable side of the switch.

v A cable management tray and cable pillars v Three blowers that provide cooling for the switch. The switch continues to

operate indefinitely even if one blower fails.

v A worldwide name (WWN) light-emitting diode (LED) card on the noncable side

that maintains chassis-specific information, such as WWNs, Internet Protocol (IP) addresses and summary status information of each blade assembly and power supply

Introduction 3

! ! ! ! ! ! ! ! ! !

RS-232

Link 10/100Mb/s

RS-232

Link 10/100Mb/s

Cable Side Non-cable Side

Figure 5. 2109 Model M12 (cable side and noncable side)

SJ000503

High availability

Reliability

If a system is available, it is accessible 7 days a week and 24 hours per day. Availability is designated in terms of 9s. For example, the architecture of the 2109 Model M12 is designed for availability in excess of 99.999%.

The high availability software architecture of the 2109 Model M12 provides a common framework for all applications that reside on the system. High availability allows global and local states to be maintained so that any component failure is fully manageable.

In addition to being available, the system must be reliable. This means that some, if not all, of its state must be maintained. In a reliable system, you are not aware of the internal state of a switch, and you experience continued system service with zero degradation.

The 2109 Model M12 provides the following features to ensure reliability:

v An error detection and correction mechanism to protect all data in the switch v Power-on self test (POST) v Error detection and fault isolation, such as cyclic redundancy checking (CRC),

parity checking, checksum, and illegal address checking

4 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Serviceability

v Dual CPs that enable hot, nondisruptive fast firmware upgrades. Each CP

contains two serial ports and one Ethernet port. Offline CP diagnostics and remote diagnostics make troubleshooting easy. The Standby CP continuously runs diagnostics to ensure that it is operational should a failover be necessary.

v Inter-IC (I²C) monitoring and control For information about diagnostics, see the Brocade Diagnostic and System Error

Message Reference.

The 2109 Model M12 provides the following features to enhance and ensure serviceability:

v Modular design with hot-swappable components v Redundant flash memory that stores two firmware images per CP v Extensive diagnostics and status reporting, along with a serial port to support an

external, country-specific modem for remote diagnostics and status monitoring

v Nonvolatile random-access memory (NVRAM) that contains the OEM serial

number, IBM serial number, revision information, and part number information

v Background health check daemon v Memory scrubber, self test, and bus ping to determine if a bus is not functioning v Watchdog timers v Status LEDs v Predictive diagnostics analysis through Fabric Watch v SNMP integration with higher layer managers

Ports

For information about diagnostics, see the Brocade Diagnostic and System Error Message Reference. For information about Fabric Watch, see the Brocade Fabric Watch User’s Guide.

Each switch blade assembly houses 16 auto-sensing 1 Gbps or 2 Gbps Fibre Channel ports and uses SFP optical transceivers.

The 2109 Model M12 supports the following port types:

v Optical ports v Ethernet port v Serial port

Optical ports

Fibre Channel interfaces of the 2109 Model M12 are equipped with an optical port interface that uses an SWL, 780 to 850 nm, or an LWL, 1270 to 1350 nm, laser transmitter. The laser complies with FDA21 CFR (J) Class 1 laser safety requirements. It uses non-Open Fibre Control (OFC) optical SFPs in the 2109 Model M12 series circuit. Safe Class 1 operation is guaranteed by limiting the optical power that is emitted by the port, which eliminates the need for physical shutters.

The optical SFP uses the LC-duplex connector scheme.

Ethernet ports

The 2109 Model M12 provides a fully IEEE compliant 10BASE-T or 100BASE-T Ethernet port for switch management. The port has two LEDs that indicates:

Introduction 5

Numbering

Rack mounting

v Speed (10 Mbps or 100 Mbps) v Status of the connection

Additionally, each CP has its own Ethernet port. You can choose to connect the Ethernet ports to each other through an Ethernet switch or to connect them to separate networks for greater availability. Each CP has its own unique IP address and is accessible independent of the other CP.

Serial ports

Each CP comes with two serial ports. The top serial port on the installed CP is an RS-232 port that is used for remote dial-in. The bottom port is used for accessing the console.

The 2109 Model M12 employs a numbering scheme that progresses from left to right and bottom to top in numerical order. The reference location is from the cable side of the chassis.

v Blade assemblies are numbered from 1 - 10, from left to right. v Ports are numbered from 0 - 15, from bottom to top. v Power supplies are numbered from1-4,from bottom to top. v Blowers are numbered from1-3,from left to right.

The mechanical design of the 2109 Model M12 allows rack mounting with either the cable side or the noncable side facing the front of the equipment rack. The chassis fits into a standard 19-inch EIA rack. Each chassis measures:

v 43.74 cm (17.22 in.) wide v 70.87 cm (27.9 in.) deep (without the door) v 61.24 cm (24.11 in.) high (less than 14U)

Cooling system

The 2109 Model M12 uses a redundant system of three hot-swappable blowers. Cool air intake is from the noncable side of the chassis, is pressurized, and is forced through the system. Heated air exits at the top of the cable side of the chassis. Three blowers that are used in conjunction with a pressurized plenum cool the unit. Each blower assembly includes a blower control assembly, which provides the following features:

v Blower status LEDs v Blower speed sensing v Blower speed control v Serial electronically erasable programmable read only memory (EEPROM) that

contains the part number, revision level, and error logs for the blade assembly

v Inlet air temperature monitoring The 2109 Model M12 operates indefinitely if a single blower fails. When a blower

assembly is removed, a mechanical flap seals the air chamber to maintain positive cooling air pressure in the chassis while the failed blower assembly is being replaced.

6 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Cable management

The cable management tray and cable pillars provide easy access to the 2109 Model M12 cables and allow you to organize and maintain the cables easily. Up to 128 pairs of fibre optic cables can be maintained on a single chassis. The cable management system is designed to allow any switch module to be replaced without disrupting service on any adjacent blade assemblies.

Worldwide name LED card

The WWN LED card is the neutral location to accommodate the worldwide unique serial ID for each logical switch on the 2109 Model M12. It is an integral part of the chassis. The serial EEPROM device contains multiple serial numbers for identifying the chassis, back plane, and the WWN card itself.

As an alternative system status indicator, this card consolidates the status of all modular components in the system on the cable side and presents the status to you in the form of LEDs on the noncable side. The arrangement of the LEDs on this card resembles the look of status LEDs on the other side of the switch.

The LEDs provide the summary of cable-side system status on the switch as follows:

v Two LEDs per blade assembly on the cable side of the cabinet

– Green indicates that the power is OK. – Amber indicates that the blade needs attention.

v Two LEDs per power supply. Both LEDs are in the same location.

– Green indicates that the power is OK. – Amber indicates that the power supply needs attention.

Power distribution system

The power subsystem is a redundant +48 V dc power distribution system with a provision for up to four 1000-watt, 48 V dc bulk power supplies. Bulk power supplies produce the intermediate distribution voltage in the distributed power system. See Table 2 for the power distribution system specifications.

Table 2. Power distribution system specifications

Specification Value

Input voltage A fully loaded switch requires a maximum of 2200 Volt-Amps.

Supported power range Nominal: 200 - 240 V ac, single phase Input frequency range 47 - 63 Hz Power supplies (each) Output voltages: 48 V at 20 amps; 12 V at 4 amps

ac inrush current 40 amps maximum, peak Ride through The power supply outputs remain within specified regulation

This results in a mains current of 9 amps at 240 V ac line voltage or 10 amps at 208 V ac line voltage.

The rated ac input range is 180 - 264 V ac.

Maximum output power: 1000 watts

for a minimum of 20 msec after the ac mains are disconnected.

Introduction 7

Table 2. Power distribution system specifications (continued)

Specification Value

Under voltage protection The 2109 Model M12 power supply self-protects from any

Power distribution strategy

All power for the blades comes from a single 48 V intermediate power bus. Great care is taken at each load to assure the integrity of the power bus.

The power supplies also provide a separate 12 V AUX voltage. This is used throughout the system to power the I²C logic and to monitor and control different system states.

ac input

Each ac input has an on-off circuit breaker switch. The power supply modules include input power filtering and power indicator LEDs. The power supply output remains within specific regulation for a minimum of 20 msec after the ac mains have been disconnected.

Two detachable line cords provide ac input power to the chassis.

input voltage, static or dynamic, from zero volts to its operating ranges. It recovers to normal operation when it returns to its operating range.

dc outputs

The 2109 Model M12 uses up to four power supplies. All power supplies are hot-swappable. Two power supplies receive input power from one of the ac inputs. The remaining two power supplies receive power from the other ac input. Only two power supplies are required to run a completely loaded chassis. Therefore, if one ac input fails, and all power supply modules are populated, the chassis continues to run uninterrupted. If a power supply module fails, the remaining power supply modules continue to provide uninterrupted power to the chassis. The power supplies are plugged directly into their power bays to an internal blind connector.

Each blade assembly has separate dc-dc converter bricks for each voltage that is required. This allows local regulation at the blade assembly, and provides for future flexibility to match voltage needs with blade assembly type.

To maximize system availability when the switch blade assembly is plugged, it is initially powered off by the hardware. This ensures that adding a blade assembly does not bring the whole switch down if inadequate power is available. The system confirms sufficient power for the new module and then applies power. If sufficient power is not available (for example, if only one of the possible four power supplies are installed), the system does not allow more than four switch blade assemblies plus two CP blades to be powered up.

2N power architecture

The 2N power architecture is designed to protect against the loss of ac power. The 2109 Model M12 offers four power supply modules to assure maximum availability. Under normal operating conditions, only two power supplies are needed for full system operation. However, to ensure redundancy, two additional power supplies are available and are added in pairs, one per ac source.

8 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Table 3 shows various supported power supply configurations and their respective levels of redundancy.

Table 3. Power supply configurations

Number of power supplies

1142 3No 2 1 4 or 8 2 3 Partial (See

3242 3Yes 4282 3Yes

Note: A single power cord results in the lack of ac source redundancy.

CP blade assembly

The CP blade assembly controls the following 2109 Model M12 functions or features:

v System initialization v Switch drivers v High availability drivers v Name server v System management v Fabric OS v Fabric Manager v Extended Fabrics v Fabric Watch v Remote Switch v Web Tools v Zoning

Number of power cords

Number of switch blades

Number of CP blades

Number of blowers

Redundancy

note)

CPU subsystem

The CP blade assembly is compliant with the PCI Local Bus Specification 2.1. It provides all control and management functions in a 2109 Model M12 platform.

For more information about these features, see the following documents:

v Brocade Fabric Watch User’s Guide v Brocade Fabric Manager User’s Guide v Brocade Advanced Web Tools User’s Guide v Brocade Fabric OS Procedures Guide v Brocade Fabric OS Reference v Brocade Distributed Fabric User’s Guide v Brocade Advanced Zoning User’s Guide

The PowerPC 405GP 200-MHz microprocessor (PPC405) resides on the CP blade assembly. It contains a high-performance reduced instruction set computer (RISC) core, synchronous dynamic random access memory (SDRAM) controller, PCI bus

Introduction 9

interface, direct memory access (DMA) engine, serial ports, I²C interface, read-only memory, and general purpose I/O. In addition, the CP blade assembly has the following functions:

v SDRAM controller that is built into the PPC405 with error correction support at

100 MHz

v SDRAM that supports 128 Mb configuration v Socket PLCC32 boot flash that supports 512 Kb v On-board compact flash that supports 256 Mb of software storage v Two 32-bit, 33 MHz PCI-PCI bridges nontransparent v Hot-plugged interface circuitry to support reliability, availability, serviceability and

failover. If one device stops functioning, the other device automatically takes its place.

v One 10 Mbps or 100 Mbps management connection (RJ-45 connector type) v Two universal asynchronous receiver-transmitter (UART) serial ports: one modem

port for remote diagnostic testing and one terminal port for Telnet and command line interface (CLI) communication

v One amber LED to indicate the status for CP errors v One green LED to indicate the proper operation for the CP power v One green LED to indicate the system Ethernet 10 Mbps or 100 Mbps speed v One amber LED to indicate the system Ethernet link status v One digital thermometer for temperature sensing v One real-time clock (RTC) with battery v Two I²C I/O expander devices

Configuration

Management

The CP blade assemblies can be configured to support a single 2-blade assembly topology, dual 2-blade assembly topology, a 4-blade assembly topology, a dual 4-blade assembly topology, or an 8-blade assembly switch topology. Other topologies can be supported on an as needed basis. Each CP interfaces to switch blade assemblies using a standard Peripheral Component Interconnect (PCI) bus. This bus runs at 33 MHz and can be 32 or 64 bits wide (bus 1 and 2). The CP blade assembly supports the following switch configurations:

v Single 32-port switch with dual CPs v Dual 32-port switches with dual CPs v Single 64-port switch with dual CPs v Dual 64-port switches with dual CPs

The CPs manage as many as eight switch blade assemblies within a single switch and monitor up to four power supplies, three blowers, three inlets (in the blower), up to 12 outlet temperature monitors (one per blade assembly), and other blade assembly-specific environmental features, such as voltages. The CP can individually reset each blade assembly, detect the status of each blade assembly (installed/not installed), manage the interrupt and service demand from each blade assembly, control the ability of a blade assembly to drive or not drive the PCI bus, and determine the error status of each blade assembly.

10 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Switch blade assembly

The switch blade assembly is a blade in the chassis of the 2109 Model M12. Each switch blade assembly provides 16 external Fibre Channel ports that run at 1 Gbps and 2 Gbps. A full switch consists of up to four switch blade assemblies and provides up to 64 ports in multiples of 16 ports.

The switch blade assembly is responsible for Fibre Channel switch circuitry and houses the switch application-specific integrated circuit (ASIC), backplane serial-deserializer (SERDES), external SERDES, and status LEDs for external SERDES such as port speed and port state, as well as the SFP fiber optic media. The SERDES performs two key functions. It receives the serial data stream of the system and converts it to a parallel stream. It also transmits parallel data streams to serial data streams.

Each switch blade assembly is hot-swappable and can be installed while the switch is running. Long pins, short pins, or both are used on the backplane to assure proper ground-voltage-signal sequencing. Field effect transistor (FET) switches, such as QuickSwitches, are used to isolate the PCI interfaces.

When a switch blade assembly is inserted, the power regulation circuitry inhibits the on-board dc converter (DCC) and maintains the switch blade assembly as turned off. The CP, under software control, enables the DCC and thus turns on the switch blade assembly. When the switch blade assembly is ready it interrupts the CP for initialization.

Each switch blade assembly has an on-board serial EEPROM that is only accessible through the I²C bus interface. This serial EEPROM can be accessed by a CP to determine information, including:

v OEM serial number v IBM serial number v Manufacturing date v Manufacturing location v Part number v Revision v Error logs

Switch blade assembly design

The switch blade assembly has the following dimensions:

v 42.06 cm (16.56 in.) high v 29.74 cm (11.71 in.) wide v 3.58 cm (1.41 in.) deep

Each switch blade assembly is connected to the backplane through high performance connectors.

The switch blade assembly provides 16 external Fibre Channel ports. Each of the 16 ports per blade assembly are auto-sensing, speed matching at 1 Gbps and 2 Gbps, support trunking, and are universal (E_port, F_port, and FL_port). Port speed can be managed through the management interface.

Introduction 11

Fault monitoring and diagnostics

Fault monitoring, diagnostic tests, and system status indicators simplify switch management and ensure the availability of the 2109 Model M12.

Diagnostic tests

Diagnostic testing occurs in three areas: power-on self test (POST), switch level testing, and manufacturing tests.

v The POST tests are blade oriented and ensure that the switch is ready for use.

Testing is performed on physical ports.

v Switch level tests are done at the user port level. The tests rely on the standard

Fabric OS support to provide routing and port setup.

v Manufacturing support includes long duration testing.

System status indicators

LEDs on the noncable side of the switch summarize the system status of each switch blade assembly, each CP blade assembly, and each power supply module. The blowers, which are accessible on the noncable side, also have LEDs that indicate their status.

Cable-side LEDs

Table 4 describes the appearance of the LEDs on the cable side of the system:

Table 4. Cable side LEDs

LED location Indication

System status panel

CP blade assembly Contains two additional LEDs for its Ethernet

Each port on a switch card Contains two LEDs

v Green indicates that the blade assembly

has power.

v Amber indicates that the blade assembly

needs attention.

ports v Green indicates link speed.

– On indicates 100 Mbps operation. – Off indicates 10 Mbps operation.

v Amber indicates link status

– Solid on indicates a link is not good. – Flashing indicates a link is OK. – Off indicates that no link is detected.

v Top LED:

– Green indicates 2.125 Gbps. – Off indicates 1.0625 Gbps.

v Bottom LED:

– Green indicates the port is operational. – Amber indicates the port is off or

disabled.

12 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Table 4. Cable side LEDs (continued)

LED location Indication

Each power supply Contains three LEDs

v Green

– Solid indicates that ac is applied and

power outputs are OK.

– Flashing indicates that only the

auxiliary output is valid.

v Amber center light is a predictive failure

light. It indicates that a power supply might fail

due to a poorly performing fan. A replacement should be scheduled soon.

v Amber lower light is a fault light.

It indicates that a power supply has failed and a replacement is necessary.

Noncable side LEDs

Table 5 describes the appearance of the LEDs on the noncable side of the system:

Table 5. Noncable side LEDs

LED location Indication

Blower

Blower system status panel

v Green indicates that the blade assembly

has power.

v Amber indicates that the blade assembly

needs attention.

v Green indicates that the blower assembly

has power.

v Amber indicates that the blower assembly

needs attention.

Software features

| | | | |

Additional status reporting functions are provided by the Fabric Watch feature. For information about Fabric Watch, see the Brocade Fabric Watch User’s Guide.

Fabric OS version 4.1 supports the 2109 Model M12. Fabric OS includes all the basic switch and fabric support software as well as optionally licensed software that is enabled by using license keys. Fabric OS is made up of two major software components: firmware that initializes and manages the switch hardware, and diagnostics.

Optionally licensed and separately priced features include: v Extended Fabrics (Feature code 7603)

Provides up to 100 km (62.14 mi.) of switched fabric connectivity at full bandwidth over long distances

v Remote Switch (Feature code 7602)

Enables switches to interconnect over wide area network (WAN) using third-party gateway solutions that support FC over IP, FC over ATM, and FC over SONET

v Advanced Security (Feature code 7623)

Introduction 13

Enables policy-based security mechanisms that are integrated within Fabric OS

| |

| | | | |

| | | | | | |

The following licensed software provides a graphical user interface from a standard workstation:

v Fabric Manager 4.0 (Feature code 7203)

Administers, configures, and maintains fabric switches and SANs with host-based software

The following licensed features are included with the 2109 Model M12: v Performance Monitoring

Comprehensive tool for monitoring the performance of network storage resources

v ISL Trunking

Connects up to four ISLs between two switches through an expansion port (E_port) to merge logically into one link

v Fabric Watch

Monitors mission-critical fabric parameters

v Advanced Zoning

Segments a fabric into virtual private SANs

v Web Tools

Administers, configures, and maintains fabric switches and SANs

Note: To activate these features, go to the following Web site:

www.ibm.com/storage/key/

Fabric OS

See the following documents for more information about Fabric Watch, Fabric Manager, Web Tools, Secure Fabric OS, and high availability:

v Brocade Fabric Watch User’s Guide v Brocade Fabric Manager User’s Guide v Brocade Advanced Web Tools User’s Guide v Brocade Distributed Fabric User’s Guide v Brocade Advanced Zoning User’s Guide v Brocade Secure Fabric OS User’s Guide v Brocade Fabric OS Reference v Brocade Silkworm 12000 Hardware Reference Manual

Fabric OS is a robust operating system for high-performance, scalable SANs. Fabric OS allows you to:

v Rapidly build highly resilient, fault-tolerant multiswitch SAN fabrics v Ensure high-speed access to business-critical data v Allow hosts to dynamically share storage resources v Rapidly scale the SAN by simply plugging in new devices with no configuration

required. Software upgrades are nondisruptive

v Integrate private loops, private hosts, load balancing and sophisticated SAN

management

v Easily manage the switches, hosts and devices that comprise the SAN

14 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Interoperability

The Fabric OS for the 2109 Model M12 allows any Fibre Channel-compliant device to attach to the switches as long as it conforms to the device login, name service, and related Fibre Channel feature standards. Each operating environment requires that a Fibre Channel host bus adapter (HBA) be available with a standards-compliant driver for proper interface to the fabric.

Fabric OS consists of a set of embedded applications that run on top of an embedded real-time Linux operating system kernel. These applications include the following:

v Name server v Alias server v Simple Network Management Protocol (SNMP) agent v Several tasks to manage the following:

– Address assignment – Routing – Link initialization – Fabric initialization – Link shutdown – Switch shutdown – User interface

Fabric OS Version 4.1 interoperates with 3534 Model 1RU (minimum version 2.6). McData ED-5000 (from operating system version 4.0) interoperability is also provided.

Security

Secure Telnet access is available using Secure Shell (SSH), a network security protocol for secure remote login and other secure network services over an insecure network.

Web Tools management is available through a secure browser by using Secure Sockets Layer (SSL). The SSL security protocol provides data encryption, server authentication, message integrity, and optional client authentication for a TCP/IP connection. Because SSL is built into all major browsers and Web servers, installing a digital certificate turns on the SSL capabilities. For more information about Web Tools, see the Brocade Advanced Web Tools User’s Guide.

Network manageability

The entire switch is managed as a single element and appears as a single element to a Network Management System (NMS). Each 64-port switch responds to its own IP address and appears as a separate entity to the Telnet protocol and the SNMP.

The management interfaces include blade assemblies as an intermediate component between switches and ports. In addition, all management interfaces such as, Telnet, Web Tools, the Fabric Access Layer API, and Management Server, support a “port N within blade M” naming scheme.

When SNMP devices send SNMP messages to a management console running SAN management software, the information is stored in a Management Information Base (MIB). The Fabric OS Version of the 2109 Model M12 supports the latest

Introduction 15

Fibre Alliance Fibre Channel management (FCMGMT) MIBs, which allow common information necessary for management software to provide information to a SAN administrator.

Field replaceable units (FRUs)

Each FRU in the 2109 Model M12 is hot-swappable. Fault isolation to the FRU level provides failure containment. Each FRU can be identified remotely with the FRU part number, serial number, and revision level.

The FRUs of the the 2109 Model M12 include: v Chassis, including backplane, blower and power supply backplane, ac harness,

and blower harness (does not include blower assemblies or power supplies)

v 16-port Fibre Channel switch module v CP v Power supply (180 - 264 V ac, 1000 W) v Blower assembly, including blower, control board, and housing v Rear LED status panel cosmetic trim panel v Chassis door v Card slot filler panel v Power supply filler panel v Cable management tray v Optical cable management guides (package of 16) v Rack mount kit, including rear brackets and bottom support rack rails v Optional mid-mount rack kit v ac input cable: North America, UK, continental Europe, Australia and New

Zealand, and international IEC 60309

v Serial cable v SFP SWL transceiver v SFP LWL transceiver

For more information about the FRUs, see the IBM TotalStorage SAN Cabinet 2109 Model C36 with Model M12 Installation and Service Guide.

The CP dynamically isolates any FRU that is nonfunctional for ease of repair and replacement as well as to prevent a nonfunctional blade assembly from affecting system availability. Each switch blade assembly has 128K bits of nonvolatile memory and takes inventory of the system and determines the contents of the system electronically. For example, you can perform the following tasks:

v Determine how long components have been running when they fail v View error logs v View operating hours v View log histories to determine MTBF

For more information about how to perform these tasks, see the Brocade Fabric OS Reference.

16 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Appendix A. Product specifications

This appendix contains the 2109 Model C36 with Model M12 specifications.

2109 Model M12 components

The 2109 Model M12 contains the following components: v A 14U chassis, designed to be mounted in a 48.26 cm (19 in.) rack. Two 2109

Model M12 switches can be mounted in a 2109 Model C36 cabinet.

v 16-port cards in configurations up to eight cards per chassis, with 16 optical ports

per card, compatible with SFPs.

v Two CP cards, each with:

– One modem serial port with a DB-9 connector (full RS-232) – One terminal serial port with a DB-9 connector (RS-232 signal subset) – One IEEE compliant RJ-45 connector for use with a 10 Mbps or 100 Mbps

Ethernet connection

– A real-time clock (RTC) with a 10-year battery and 56 bytes of NVRAM

v Four power supplies with built-in fans. The power supplies plug into internal

blind-mate connectors when installed in the chassis.

v Two ac power inlet connectors with ac power switches (power panel). v A WWN card and bezel. v Three blower assemblies for forced-air cooling of the 16-port cards and the CP

cards.

Air enters inlet vents on the blower assembly side of the chassis and exits through vents on the port side of the chassis. The blower speed is governed by inlet air temperature. The blowers go into high speed when the inlet air temperature exceeds 33°C (91°F).

Physical dimensions

The dimensions of the 2109 Model M12 are listed in Table 6.

Table 6. Physical dimensions of the 2109 Model M12

Dimension Value

Height 14U (24.11 in.) Depth 70.9 cm (27.9 in.) Depth with door 72.9 cm (28.7 in.) Width 43.7 cm (17.2 in.)

2109 Model M12 and component weights

The weight of a fully-loaded 2109 Model M12, as well as the weights of individual components, are listed in Table 7.

Table 7. Component weights

Component Weight

Fully loaded chassis Approximately 114 kg (250.0 lbs) Empty chassis 47.1 kg (104.0 lbs)

Table 7. Component weights (continued)

Component Weight

Door 3.4 kg (7.6 lbs) Blower assembly 4 kg (8.8 lbs) Power supply 3.2 kg (7.0 lbs) WWN bezel 0.27 kg (0.6 lbs) CP card 2.5 kg (5.6 lbs) 16-port card 3.9 kg (8.6 lbs) Card filler panel 1.6 kg (3.2 lbs) Cable management tray 0.27 kg (0.6 lbs)

2109 Model C36 with Model M12 specifications

The specifications for the 2109 Model C36 with Model M12 are listed in Table 8.

Table 8. 2109 Model C36 with Model M12 specifications

Dimension Value

Height 1785 mm (70.3 in.) Depth

Width

EIA units 36 EIA units Weight Cabinet with two 2109 Model M12 switches: 816 kg (1795 lbs)

v With rear door installed: 1042 mm (41 in.) v With rear and front door installed: 1098 mm (43.3 in.)

v With side panels installed: 650 mm (25.6 in.) v Without side panel installed: 623 mm (24.5 in.)

16-port card specifications

The ports in the 2109 Model C36 with Model M12 support full-duplex link-speeds at

2.125 Gbps or 1.0625 Gbps, inbound and outbound, automatically negotiating to the

highest common speed of all the devices that are connected to the port. Each port has a SERDES that accepts 10-bit wide parallel data and serializes it into a high-speed serial stream. The parallel data is expected to be 8B/10B encoded data or equivalent.

The ports are compatible with optical SWL (780 - 850 nm), and optical LWL (1270 1350 nm), SFPs, and SFP-compatible cables. The strength of the signal is determined by the type of SFP being used.

The ports are universal and self-configuring, and are capable of becoming F_ports, FL_ports, or E_ports.

The ports meet all required safety standards. For more information about these standards, see Table 16 on page 23.

CP card specifications

This section describes the specifications for the CP card.

18 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Memory specifications

The centralized memory maximizes switch throughput by guaranteeing full transmit and receive bandwidth to all Fibre Channel ports at all times.

Each CP card contains the type and specification of memory listed in Table 9.

Table 9. Memory specifications

Memory type Amount

Main memory 128 MB of SDRAM (32 bits wide) Flash memory

Boot flash memory 512 KB of 8-bit wide memory for system

v User flash: 16 MB of 16-bit wide memory,

stored in two 8 MB banks

v Compact flash: 256 MB, partitioned in two

128 MB sections

startup

Battery specifications

The CP card has a lithium carbon-monoflouride coin cell battery. Table 10 lists the battery specifications.

Table 10. Battery specifications

Type Specification

Rayovac BR1225 3.0 volt, 50 mAh

CAUTION: There is a danger of explosion if the battery is incorrectly replaced. All used batteries must be discarded according to the manufacturer’s instructions. Contact IBM if the real time clock begins to lose time (4)

Terminal serial port specifications

Each CP card provides a terminal serial port with a DB-9 connector with an RS-232 signal subset.

Note: For dust and electrostatic discharge (ESD) protection, a cover is provided for

the serial port and should be kept on the port whenever the serial port is not being used.

You can use the terminal serial port to connect to a computer workstation or terminal without connecting to the fabric. Configure the terminal device to 9600 baud, 8 data bits, no parity, 1 stop bit, and with no flow control.

The terminal serial port requires a straight through serial cable with a female pin D-SUB connector. Use the pinouts listed in Table 11.

Table 11. Terminal serial port pinouts

Pin Signal Description

1 2 Exudate Transmit data 3 Rewaxed Receive data 4

Appendix A. Product specifications 19

Table 11. Terminal serial port pinouts (continued)

Pin Signal Description

5 AND Logic ground 6 7 8 9

Modem serial port specifications

Each CP card has a modem serial port with a fully RS-232 compliant DB-9 connector.

Note: For dust and END protection, a cover is provided for the serial port and

should be kept on the port whenever the serial port is not being used.

Use the modem serial port to attach a modem to each CP card. The 2109 Model M12 detects modems only during the power-on or restart sequences, and automatically initializes them for operation. If modems are connected to an operating switch, a power on and off cycle, restart, or fast restart is required in order to detect the modems.

You should connect a “Y.” cable on the telephone line to each modem. The active CP card answers on the first ring. The standby CP card answers on the seventh ring if the active CP card fails to answer.

The modem serial port pinouts are listed in Table 12.

Table 12. Modem serial port pinouts

Pin Signal Description

1 DCD 2 Rewaxed Receive data 3 Exudate Transmit data 4 DTR Data term ready 5 AND Logic ground 6 DSR Data set ready 7 RTS Request to send 8 CTS Clear to send 9 RI Ring indicator

Facility specifications

To ensure correct operation of the 2109 Model C36 with Model M12 , ensure that the facility meets the following specifications:

v Power requirements for a physical inlet:

– Input power requirements: 200 - 240 V ac, AA 50 - 60 Hz – Recommended power connector

v An adequate supply circuit, line fusing, and wire size, according to the electrical

rating on the switch nameplate.

20 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

v An air flow of at least 350 cubic feet per minute per switch, available in the

immediate vicinity of the 2109 Model C36 with Model M12.

v The power specifications listed in “Power specifications”. v The environmental specifications listed in “Environmental requirements” on

page 22.

v Interference less than the standard levels listed in Table 15 on page 22, under

Immunity.

Power specifications

CAUTION: To remove power to the 2109 Model M12, disconnect both power cables. (5)

The 2109 Model C36 with Model M12 supports F_port, FL_port, and E_port connections and distributed name server (DNS). It is electro-magnetic compatibility (EMC) compliant.

The power supplies are universal and capable of functioning worldwide without using voltage jumpers or switches. They meet IEC 61000-4-5 surge voltage requirements and are autoranging in terms of accommodating input voltages and line frequencies. Each power supply has its own built-in fan for cooling, pushing the air towards the port side of the chassis.

The power specifications listed in Table 13 are calculated for fully-loaded systems with four power supplies. A fully-loaded system has eight 16-port cards, two CP cards, and three blower assemblies.

Table 13 lists the power specifications for the 2109 Model C36 with Model M12.

Table 13. Power specifications

Specification Value

Total power available from each power supply

Input voltage 200 - 240 V ac Input line frequency 50 - 60 Hz Harmonic distortion Active power factor correction per

Heat output (BTU rating)

Maximum inrush current per power cord 40 amps Peak Input line protection Thermal circuit breaker Power supply dimensions 6.96 cm (2.74 in.) wide, 12.34 cm (4.86 in.)

1KW

IEC1000-3-2

v 64 ports: 1080 watts, 3690 BTU per hour v 128 ports : 1960 watts, 6700 BTU per

hour

high, 34.29 cm (13.50 in.) long

Appendix A. Product specifications 21

Environmental requirements

Table 14 lists the environmental operating ranges for the 2109 Model C36 with Model M12. The requirements for non-operating conditions are also provided for acceptable storage and transportation environments.

Table 14. Environmental requirements

Condition Acceptable range during

Temperature (See Note)

Humidity 20% - 80% RH noncondensing, at

Altitude 0-3km(0-10000ft)above sea

Shock 4G, 11 MS duration, half-sine

Vibration 5G,0-3kHzat1.0octave per

Heat dissipation

Note: Temperature measured at the air inlets on the blower assembly side of the chassis.

Acceptable range during

operation

0° -40°C (40° - 104°F) 0° -40°C (40° - 104°F)

40°C

level

wave

minute

v 64 ports: 3690 BTU per hour v 128 ports: 6700 BTU per hour

nonoperation

0% - 90% RH noncondensing, at 40°C

0 - 12 km (0 - 39 370 ft) above sea level

0G, 11 MS duration, sq wave

10G,0-5kHzat1.0octave per minute

Not applicable

General specifications

Table 15 lists the general specifications for the 2109 Model C36 with Model M12.

Table 15. General specifications

Specification Description

Configurable port types The 2109 Model C36 with Model M12

EMI rating An operating 2109 Model C36 with Model

System architecture Nonblocking shared-memory switch System processor IBM Power PC 405GP, 200 MHz CPU ANSI Fibre Channel protocol FC-PH (Fibre Channel Physical and

Modes of operation Fibre Channel Class 2, Class 3, and Class F Fabric initialization Complies with FC-SW 5.0

supports F_port, FL_port, and E_port connections.

M12 conforms to the EMI radiation levels specified by the following regulations:

v FCC Rules and Regulations, Part 15B,

Class A level

v CISPR22 ClassA v EN55022 ClassA v VCCI ClassA ITE v AS/NZS 3548 Class A v CNS13438 ClassA v ICES-003 ClassA

Signaling Interface standard)

22 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Table 15. General specifications (continued)

Specification Description

Internet protocol (IP) over Fibre Channel (FC-IP)

Aggregate switch input/output (I/O) bandwidth

Port-to-port latency Less than 2 microseconds with no contention

Data transmission range

Immunity

Acoustics When measured in EIA 4 of a 36 EIA

Routing capacity A minimum aggregate routing capacity of

Complies with FC-IP 2.3 of the FCA profile

Per port: 4 Gbps, running at 2 Gbps, full duplex

Per 16-port card: 64 Gbps, all 16 ports at 2 Gbps, full duplex

(destination port is free) v Up to 500 m (1625 ft) for short wavelength

optical link

v Up to 10 km (32 820 ft) for long

wavelength optical link

v IEC 61000-4-2 Severity Level 3 for

Electrostatic Discharge

v IEC 61000-4-3 Severity Level 3 for

Radiated Fields

v IEC 61000-4-4 Severity Level 3 for Fast

Transients

v IEC 61000-4-5 Severity Level 3 for Surge

Voltage

v IEC 61000-4-6 Conducted Emissions v IEC 61000-4-11 Voltage Variations

TotalStorage rack, with front cover, and rear cover with acoustic baffle, declared sound power is LwAd = 7.5 B, average bystander sound pressure is LpA = 59 dBA.

four million frames per second is provided for Class 2, Class 3, and Class F frames in a 64–port switch.

Regulatory specifications

The 2109 Model M12 is certified for the regulatory specifications that are listed in Table 16.

Table 16. Regulatory specifications

Country or region

Canada CSA 22.2 No. 60950 Third Ed. ICES-003 Class A United States UL 60950 Third Ed., Info. Tech. Equip. FCC Part 15, Subpart B,

Japan IEC 60950+A1+A2+A3+A4+A11 VCCI V-3/2000.04, Class

International IEC 60950+A1+A2+A3+A4+A11 CISPR22 Class A

Safety specification EMC specification

(CFR title 47) Class A

Appendix A. Product specifications 23

Table 16. Regulatory specifications (continued)

Country or region

Norway Nemko IEC 60950+A1+A2+A3+A4+A11

European Union

Safety specification EMC specification

(CB Report) 73/23/EEC based on compliance to

89/336/EEC

(Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden, United Kingdom)

Taiwan BSMI Certification CNS

Australia and New Zealand

EN 60950:92 +A1:93+A2:93+A3:95+ A4:96+A11:97 (CB report inclusive of county

deviations); TUV-GS (Germany)

EN 55022:1998 Class A EN 55024 (Immunity EN 60825-1:1994/A11, -2 EN 61000-4-2 Severity

Level 3 for Electro Static Discharge

EN 61000-4-3 Severity Level 3 for Radiated Fields

EN 61000-4-4 Severity Level 3 for Electrical Fast Transients

EN 61000-4-5 Severity Level 3 for Surge Voltage

EN 61000-4-6 Conducted Emissions

EN 61000-4-8 Magnetic Fields

EN 61000-4-11 Line Interruption

13438 AS/NZS 3548:1995 Class

A (radio interference)

The 2109 Model C36 is certified for the following regulatory specifications:

v IEC 60950/EN 60950 Third Ed. v CSA 60950-00/ANSI-UL 60950 Third Ed. v CE (7/23/EEC based on EN 60950 Third Ed.; 89/336/EEC)

24 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Appendix B. Safety certifications and regulatory compliance

The switch complies with all the safety and regulatory standards listed in this chapter.

Safety

The switch is certified to:

v UL1950/CSA950 binational v IEC950/EN 60950 (Nemko & TUV; CE)

Additionally, the following Product Safety/Country or Region Testing/Certifications has been completed.

v Federal Communications Commission (FCC) statement (United States) v Voluntary Control Council for Interference (VCCI) mark (Japan) v BSMI (Taiwan) v C-tick mark (Australia) v CE Mark (Europe) v Canada class number v GOST approval (Russia) v NOM mark (Mexico)

EMI/EMC

| |

| | | |

Radiated Electromagnetic Interference (EMI) emissions for the power supply operating in a single or redundant power configuration comply with EMI levels specified by the following regulations:

v Electromagnetic Compatibility (EMC) Directive 89/336/EEC and the

Complementary Directives 92/31/EEC and 93/68/EEC

v Low Voltage Directive (LVD) 73/23/EEC and the Complementary Directive

93/68/EEC

v FCC Docket No. 20780, Part 15J, Class B level v CISPR22 Class A v EN55022 Class B v VCCI Class A ITE

Additionally, the power supply has received a CE Mark for susceptibility and complies with the following Electromagnetic Compatibility (EMC) regulations:

v EN50082-2/EN55024:1998 (European Immunity Requirements)

– EN 61000-3-2 (Harmonics) – EN 61000-3-3 (Voltage Fluctuations) – EN 55024 (Immunity)

Immunity

The switch provides immunity 50% greater than the levels that EN 55024 specifies and complies with the following specifications:

v EN 61000-4-2, Severity Level 3 for ESD v EN 61000-4-3, Severity Level 3 for RF Fields v EN 61000-4-4, Severity Level 3 for EFT/Burst v EN 61000-4-5, Severity Level 3 for Surge Voltage v EN 61000 4-11, Power, Sag, Dip, and Variations

26 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Appendix C. Danger and caution notice translations

Arabic

(1)

(2)

SJARA347

(3)

Brazilian-Portuguese

Avisos sobre Segurança

Avisos sobre segurança estão impressos em toda esta publicação.

Um aviso de adverte sobre condições ou procedimentos que podem resultar em morte ou ferimentos graves.

Um aviso de adverte sobre condições ou procedimentos que podem causar ferimentos não-fatais nem extremamente graves.

Um aviso de adverte sobre condições ou procedimentos que podem causar danos a máquinas, equipamentos ou programas.

Utilize os números de referência entre parênteses, como por exemplo (1), no final de cada aviso, para estabelecer uma relação com a tradução desejada.

CUIDADO: Esta unidade pode ter dois cabos de alimentação. Para remover toda a energia, desconecte os dois cabos de alimentação. (1)

PSU1 PSU2

Perigo

Cuidado

Atenção

> 240

PN 18P4036

(2)

ATENÇÃO: Existe perigo de explosão se a bateria não for substituída corretamente. Todas as baterias usadas devem ser descartadas de acordo com as instruções do fabricante. Entre em contato com a IBM se o relógio de tempo real começar a atrasar. (4)

ATENÇÃO: Para remover a energia do 2109 Modelo M12, desconecte ambos os cabos de alimentação. (5)

SJBRA699

SJBRZ347

28 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Chinese, simplified

(1)

(3)

(2)

SJCHS347

SJCHS699

Appendix C. Danger and caution notice translations 29

Chinese, traditional

(1)

(2)

SJ000338

(3)

SJTAI347

30 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Croatian

(1)

(2)

SJ000338

(3)

SJCRO347

OPREZ: Postoji opasnost od eksplozije ako se baterija pogrešno zamjenjuje. Sve iskorištene baterije se moraju odbaciti u skladu s uputama proizvoðaèa. Kontaktirajte IBM ako sat za stvarno vrijeme poène kasniti. (4)

OPREZ: da uklonite napajanje za 2109 Model M12, odspojite oba kabla za napajanje. (5)

SJCRO699

Appendix C. Danger and caution notice translations 31

Czech

(1)

(2)

(3)

SJCZE347

SJCZE699

32 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Danish

(1)

(3)

(2)

SJDAN347

Appendix C. Danger and caution notice translations 33

Finnish

(1)

(3)

(2)

SJ000338

SJFIN347

SJFIN699

34 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

French

(1)

(2)

(3)

SJFRE347

SJFRA699

Appendix C. Danger and caution notice translations 35

German

(1)

ACHTUNG: Nur GBIC-Einheiten oder Glasfaserpr odukte verwenden, die dem IEC Standard 60825-1 entsprec hen. Optisc he Pr odukte , die diesen Standar ds nic ht entsprec hen, können Strahlung en erz eug en, die zu A ugenverletzung en führen können.

ACHTUNG: Lithiumbatterien sind feuergefährlich, explosiv und können schwere Ver-

br ennungen v er ur sachen. Batterie nicht w ieder auf lad en, öffnen o der ü ber 100 Grad Celsius er hitzen; die Zelle nicht d irekt a nlöten, verbrenn en oder den Inhalt der Zelle mit Wasser in B erühr ung br ingen. Batterie ni cht in R eichweite von K indern aufbewahren. Eine verbrauch te Batterie nu r durch ein e Batterie mit der für dieses S ystem s pezifizierten Teilenummer ersetzen. Andere Batterien können sich entzünden oder explodieren. Der Batterieanschluss h at zwei verschiedene Pole; beim A nschließen die Pole ni cht vertau schen. Batterie gemäß den örtlichen Richtlinien für Sondermüll entsorgen.

(2)

SJGER338

SJGER347

(3)

36 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

SJGER699

Greek

(1)

(3)

(2)

SJGRE329

SJGRE699

Appendix C. Danger and caution notice translations 37

Hebrew

.(1)

SJHEB347

38 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

.(2)

SJ000338

(3)

Appendix C. Danger and caution notice translations 39

Hungarian

(1)

(2)

SJ000338

(3)

SJHUN347

SJHUN699

40 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Italian

(1)

(2)

SJ000338

(3)

SJITA347

ATTENZIONE: Se la batteria non viene posizionata correttamente vi è pericolo di esplosione. Tutte le batterie usate devono essere smaltite secondo le istruzioni del produttore. Contattare l’ IBM se l’orologio non è preciso. (4)

ATTENZIONE: Per arrestare l’alimentazione del Modello M12 2109, disconnettere entrambi i cavi di alimentazione . (5)

SJITA699

Appendix C. Danger and caution notice translations 41

Japanese

(1)

(2)

SJ000338

(3)

SJJPN347

SJJPN699

42 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Korean

(1)

(3)

(2)

SJ000338

SJKOR347

Appendix C. Danger and caution notice translations 43

Macedonian

(1)

(2)

SJ000338

(3)

ВНИМАНИЕ: Постои опасност од експлози¼а ако батери¼ата непрописно се заменува. Сите искористени батерии мора да се уништат според препораките на нивниот произведувач. Контактира¼те го IBM ако real time clock чипот губи информаци¼а за времето. (4)

ВНИМАНИЕ: при исклучуваœето на 2109 модел M12, исклучете ги двата мрежни (стру¼ни) кабли. (5)

SJMKD699

SJMAC347

44 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Portuguese

(1)

(3)

(2)

SJ000338

SJPOR347

Appendix C. Danger and caution notice translations 45

Russian

(1)

(2)

SJ000338

(3)

SJRUS347

46 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Slovak

(1)

(2)

SJ000338

(3)

VÝSTRAHA: Ak je batéria nesprávne vymenená, existuje nebezpeèenstvo výbuchu. Všetky pouité batérie musia by znehodnotené vsúlade s pokynmi výrobcu. Ak hodiny reálneho èasu zaèínajú meška, obrátesanaIBM. (4)

VÝSTRAHA: Ak chcete odstráni napájanie pre 2109 ModelM12,odpojte obidva napájacie káble. (5)

SJSKY699

SJSLK347

Appendix C. Danger and caution notice translations 47

Slovenian

(1)

(2)

SJ000338

(3)

OPOZORILO: Èe baterije ne vstavite na pravilno mesto, lahko pride do eksplozije. Vse izrabljene baterije morate usmetišèiti v skladu z navodili proizvajalca. Èe ura dejanskega èasa zaène zaostajati, se obrnite na IBM. (4)

OPOZORILO: Èeelite odstraniti napajanje za modelM12raèunalnika 2109,izkljuèite oba napajalna kabla. (5)

SJSLV699

SJSLV347

48 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

Spanish

(1)

(3)

(2)

SJ000338

SJSPA347

Appendix C. Danger and caution notice translations 49

Swedish

(1)

(2)

SJ000338

(3)

SJSWE347

VARNING: Det finns fara för explosion om batteriet byts ut på ett felaktigt sätt. Släng det använda batteriet i enlighet med tillverkarens anvisningar. Kontakta IBM om klockan börjar gå långsammare. (4)

VARNING: Bryt strömmen till 2109 modell M12 genom att koppla ur båda strömkablarna. (5)

SJSVE699

50 IBM TotalStorage SAN Switch: 2109 Model M12 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. You can send license inquiries, in writing to:

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

The following paragraph does not apply to the United Kingdom or any other country 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 NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A 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.

Trademarks

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

IBM TotalStorage

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

Electronic emission statements

This section gives the electronic emission notices or statements for the United States and other countries.

Federal Communications Commission (FCC) statement

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.

Properly shielded and grounded cables and connectors must be used in order to meet FCC emission limits. IBM is not responsible for any radio or television interference caused by using other than recommended cables and connectors or 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 compliance statement

Avis de conformite a la reglementation d’Industrie Canada: Cet appareil

numerique de la classe A est conform a la norme NMB-003 du Canada.

Chinese Class A compliance statement

| | |

Attention: This is a Class A statement. In a domestic environment, this product might cause radio interference in which case the user might be required to take adequate measures.

52 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

European Community compliance statement

This product is in conformity with the protection requirements of EC 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 is in conformity with the EU council directive 73/23/EEC on the approximation of the laws of the Member States relating to electrical equipment designed for use within certain voltage limits. This conformity is based on compliance with the following harmonized standard: EN60950.

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.

Where shielded or special cables (for example, cables fitted with ferrites) are used in the test to make the product comply with the limits:

Properly shielded and grounded cables and connectors must be used in order to reduce the potential for causing interference to radio and TV communications and to other electrical or electronic equipment. Such cables and connectors are available from IBM authorized dealers. IBM cannot accept responsibility for any interference caused by using other than recommended cables and connectors.

Germany compliance statement

Zulassungsbescheinigung laut Gesetz ueber die elektromagnetische Vertraeglichkeit von Geraeten (EMVG) vom 30. August 1995. Dieses Geraet ist berechtigt, in Uebereinstimmung mit dem deutschen EMVG das EG-Konformitaetszeichen - CE - zu fuehren. Der Aussteller der Konformitaetserklaeung ist die IBM Deutschland. Informationen in Hinsicht EMVG Paragraph 3 Abs. (2) 2: Das Geraet erfuellt die Schutzanforderungen nach EN 50082-1 und EN 55022

Klasse A.

Notices 53

EN 55022 Klasse A Geraete beduerfen folgender Hinweise: Nach dem EMVG:_|t¹| “Geraete duerfen an Orten, fuer die sie nicht ausreichend entstoert sind, nur mit

besonderer Genehmigung des Bundesministeriums fuer Post und Telekommunikation oder des Bundesamtes fuer Post und Telekommunikation betrieben werden. Die Genehmigung wird erteilt, wenn keine elektromagnetischen Stoerungen zu erwarten sind.” (Auszug aus dem EMVG, Paragraph 3, Abs.4)

Dieses Genehmigungsverfahren ist nach Paragraph 9 EMVG in Verbindung mit der entsprechenden

Kostenverordnung (Amtsblatt 14/93) kostenpflichtig. Nach der EN 55022: “Dies ist eine Einrichtung der Klasse A. Diese Einrichtung kann im Wohnbereich

Funkstoerungen verursachen. in diesem Fall kann vom Betreiber verlangt werden, angemessene Massnahmen durchzufuehren und dafuer aufzukommen.”

Anmerkung: Um die Einhaltung des EMVG sicherzustellen, sind die Geraete wie in den

Handbuechern angegeben zu installieren und zu betreiben.

Japanese Voluntary Control Council for Interference (VCCI) class 1 statement

Korean Government Ministry of Communication (MOC) statement

Please note that this device has been approved for business purposes with regard to electromagnetic interference. If you find that this is not suitable for your use, you may exchange it for one with a non-business use.

Taiwan class A compliance statement

54 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

VS07171L

Glossary

This glossary provides definitions for the Fibre Channel and switch terminology used for the IBM 2109 Model M12. This glossary also provides definitions for the Fibre Channel and switch terminology used for the IBM TotalStorage SAN Cabinet 2109 Model C36.

This glossary defines technical terms and abbreviations used in this document. If you do not find the term you are looking for, see the IBM Glossary of Computing Terms located at www.ibm.com/networking/nsg/nsgmain.htm

This glossary also 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.

v IBM Glossary of Computing Terms. New York:

McGraw-Hill, 1994.

WWN. Can also refer to a list of the read/write access of a particular community string. See also device connection controls.

account level switches. Switches that have four login accounts into the operating system (in descending order): root, factory, admin, and user. See also admin account.

ACL. See access control list. address identifier. A 24-bit or 8-bit value used to

identify the source or destination of a frame. admin account. A login account intended for use by

the customer to control switch operation. See also account level switches.

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.

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.

8b/10b encoding. An encoding scheme that converts each 8-bit byte into 10 bits. Used to balance ones and zeros in high-speed transports

16-port card. The Fibre Channel port card provided with the 2109 Model M12. Contains 16 ports and the corresponding light-emitting diodes (LEDs). See also port card.

access control list (ACL). Enables an organization to bind a specific worldwide name (WWN) to a specific switch port or set of ports, preventing a port in another physical location from assuming the identity of a real

AL_PA. See arbitrated loop physical address. American National Standards Institute (ANSI). The

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

ANSI. See American National Standards Institute. API. See application programming interface. application programming interface (API). A defined

protocol that allows applications to interface with a set of services.

application-specific integrated circuit (ASCI). In computer chip design, an integrated circuit created by first mounting an array of unconnected logic gates on a substrate and later connecting these gates in a particular configuration for a specific application. This design approach allows chips for a variety of applications to be made from the same generic gate array, thereby reducing production costs

ARB. See arbitrate primitive signal.

arbitrate 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.

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 Telnet 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.

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 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 broadband

technology for transmitting data over local area networks (LANs) or wide area networks (WANs), based on relaying cells of fixed size. Provides any-to-any connectivity, and nodes can transmit simultaneously.

ATM. See asynchronous transfer mode. auto-negotiate speed. Process that allows two

devices at either end of a link segment to negotiate common features, speed (for example, 1 Gbps or 2 Gbps) and functions.

autoranging. A power supply that accommodates different input voltages and line frequencies.

autosense. Process during which a network device automatically senses the speed of another device.

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.

BER. See bit error rate. BIOS. See basic input/output system. BISR. Built-in self-repair. 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. One component in a system that is designed to accept some number of components (blades). Blades could be individual servers that plug into a multiprocessing system or individual port cards that add connectivity to a switch. A blade is typically a hot swappable hardware device. See 16-port card.

blind-mate connector. A two-way connector used in some switches to provide a connection between the system board and the power supply.

block. As applies to fibre channel, upper-level application data that is transferred in a single sequence.

bloom. Application-specific integrated circuit (ASIC) technology that the 2109 Model M12 is based on.

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).

boot monitor. Code used to initialize the control processor (CP) environment after powering on. Identifies the amount of memory available and how to access it, and retrieves information about system buses.

British thermal unit (BTU). A measurement of heat produced in one hour.

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.

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.

56 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

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.

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.

CAM. Content addressable memory. 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). A part of a computer that includes the circuits that control the interpretation and execution of instructions. A CPU in 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.

chassis. The metal frame in which the switch and switch components are mounted.

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 that provides a dedicated connection between two ports (also called connection-oriented service), with notification of delivery or nondelivery.

class 2. Connectionless service between ports with notification of delivery or nondelivery.

class 3. Connectionless service between ports without notification of delivery. Other than notification, the transmission and routing of class 3 frames is the same as class 2 frames.

class F. Connectionless service for inter-switch control traffic. Provides notification of delivery or nondelivery between two expansion ports (E_ports).

class of service. A specified set of delivery characteristics and attributes for frame delivery.

CLI. See command line interface. CMI. Control message interface. comma. A unique pattern (either 1100000 or 0011111)

used in 8b/10b encoding to specify character alignment within a data stream. See also K28.5.

compact flash. Flash memory that stores the run-time operating system and is used like hard disk storage. Not visible within the memory space of the processor. Data is stored in file system format. Also called user flash.

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 2109 Model M12, which contains two control processor (CP) card slots to provide redundancy. Provides Ethernet, serial, and modem ports with the corresponding light-emitting diodes (LEDs).

core switch. A switch whose main task is to interconnect other switches. Also referred to as a backbone switch. See also edge switch.

CP. See control processor. CP card. See control processor card. CPLD. Complex programmable logic device. CPU. See central processing unit. CRC. See cyclic redundancy check. 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.

CSA. Canadian Standards Association. 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.

cyclic redundancy check (CRC). A check for transmission errors included in every data frame.

data communications equipment (DCE) port. A port that is capable of interfacing between a data terminal equipment (DTE) port and a transmission circuit. DCE devices with an RS-232 (or EIA-232) port interface transmit on pin 3, and receive on pin 2. See also data terminal equipment (DTE) port.

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.

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 57

data terminal equipment (DTE) port. A port that is capable of interfacing to a transmission circuit through a connection to a data communications equipment (DCE) port. DTE devices with an RS-232 (or EIA-232) port interface transmit on pin 3, and receive on pin 2 in a 9-pin connector (reversed in 25-pin connectors). See also data communications equipment (DCE) port.

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

DCC. A dc converter. DCE port. See data communications equipment (DCE)

port.

dual-fabric SAN. A storage area network (SAN) that is composed of two independent fabrics. Synonymous with multi-fabric SAN. The two-fabric architecture makes dual-fabric SANs redundant.

DWDM. Dense wavelength digital multiplexing. dynamic load sharing (DLS). Dynamic distribution of

traffic over available paths. Allows for recomputing of routes when a fabric port or fabric loop port (Fx_port) or expansion port (E_port) changes status.

dynamic random access memory (DRAM). A storage in which the cells require repetitive application of control signals to retain stored data.

DDR. Double data rate. See data rate. 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.

device. Hosts and storage that connect to a switch. Example devices are servers, redundant array of independent disks (RAID) arrays, and tape subsystems.

device connection controls. Enables organizations to bind an individual device port to a set of one or more switch ports. Device ports are specified by a worldwide name (WWN) and typically represent host bus adapters (HBAs) (servers). See also access control lists.

DID. The 3-byte destination ID of the destination device, in the 0xDomainAreaALPA format.

direct memory access (DMA). The transfer of data between memory and an input/output device without processor intervention.

disparity. The relationship 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.

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 Industry Association. EIA rack. A storage rack that meets the standards set

by the Electronics Industry Association (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.

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 port. See data terminal equipment (DTE) port. dual fabric. Two identical fabrics that allow

redundancy in the event that one fabric fails. Use a dual fabric for mission critical applications.

58 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

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.

application to switches in the fabric over an out-of-band TCP/IP connection or in-band using an IP-capable host bus adapter (HBA).

Fabric Assist. A feature that enables private and public hosts to access public targets anywhere on the fabric, provided they are in the same Fabric Assist zone.

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 from2-10seconds.

ESD. See electrostatic discharge. exchange. The highest level Fibre Channel

mechanism used for communication between node 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.

Extended Fabrics. A feature that runs on Fabric operating system (OS) and allows creation of a Fibre Channel fabric interconnected over distances of up to 100 km (62.14 mi).

extra long wavelength (ELWL). Laser light with a periodic length greater than 1300 nm (for example, 1420 or 1550). ELWL lasers are used to transmit Fibre Channel data over distances greater than 10 km. Also known as XLWL.

fabric configuration server (FCS) switch. One or more designated switches that store and manage the configuration and security parameters for all switches in the fabric. FCS switches are designated by worldwide name (WWN), and the list of designated switches is communicated fabric-wide. See also backup FCS switch, primary FCS switch.

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. A feature that allows the storage area network (SAN) manager to monitor key fabric and switch elements, making it easy to quickly identify and escalate potential problems. It monitors each element for out-of-boundary values or counters and provides notification when defined boundaries are exceeded. The SAN manager can configure which elements, such as error, status, and performance counters, are monitored within a switch.

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. A feature that runs on Fabric operating system (OS) and allows monitoring and configuration of fabric and switch elements.

fabric. A network that uses high-speed fibre connections to connect switches, hosts, and devices.A fabric is an active, intelligent, nonshared interconnect scheme for nodes.

Fabric Access. Allows the application to control the fabric directly for functions such as discovery, access (zoning) management, performance, and switch control. Consists of a host-based library that interfaces the

failover. The act that causes control to pass from one redundant unit to another.

FAN. Fabric address notification. FC. See fibre channel. FCA. See Fibre Channel arbitrated loop. FC-AL. See Fibre Channel arbitrated loop.

Glossary 59

FC-AL-3. The Fibre Channel Arbitrated Loop standard defined by ANSI. Defined on top of the FC-PH standards.

Fibre Channel transport. A protocol service that supports communication between Fibre Channel service providers. See also Fibre Channel service protocol.

FCC. Federal Communications Commission. FC-FLA. The Fibre Channel Fabric Loop Attach

standard defined by ANSI.

FCMGMT. Fibre Alliance Fibre Channel Management. 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.

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). A technology for transmitting data between computer devices at a data rate of up to 4 Gbps. It is especially suited for attaching computer servers to shared storage devices and for interconnecting storage controllers and drives.

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.

field replaceable unit (FRU). An assembly that is replaced in its entirety 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 2109 Model M12.

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.

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.

60 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

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.

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.

high port count fabric. A fabric containing 100 or more ports.

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.

gigabit switch. A 16-port, Fibre Channel gigabit switch.

G_port. See generic port. 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.

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) capability that indicates it can be extracted or installed while customer data is otherwise flowing in the chassis.

hub. A Fibre Channel wiring concentrator that collapses a loop topology into a physical star topology. Nodes are automatically added to the loop when active and removed when inactive.

IC bus. A serial, 2-wire bus used to monitor field replaceable unit (FRU) temperatures and control the system including blade power control.

ID. Identification. IDB. Interface descriptor block. 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.

IEC. International Electrotechnical Commission.

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. heartbeat. Through clustering software, the application

server continually communicates with the clustered spare using network heartbeats to indicate to the other machines that everything is operating correctly. This heartbeat is typically carried over a dedicated network for clustering traffic. In cases of a problem (for example, a software crash on the operational server or a hardware component failure), a heartbeat link indicates to the other server that something has failed or is otherwise inoperative. If that heartbeat is lost, the spare server takes over the function provided by the application service. Depending on the clustering software, either the entire server or only specific services on the server can be failed over or failed back.

high availability. An attribute of the switch that identifies it as being capable of operating well in excess of 99 percent of the time. High availability is typically

IETF. Internet Engineering Task Force. information unit (IU). A set of information as defined

by either upper-level process protocol definition or upper-lever protocol mapping.

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.

integrated fabric. The fabric created by six switches cabled together and configured to handle traffic as a seamless group.

Internet protocol (IP). In the Internet suite of protocols, a connectionless protocol that routes data through a network or interconnected networks and 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).

Glossary 61

IOD. See in-order delivery. IP. See internet protocol. IPA. Initial process associator. 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.

IU. See information unit. 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.

logical unit number (LUN). An identifier used on a small computer systems interface (SCSI) bus to distinguish among up to eight 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.

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 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). A semiconductor chip that

gives off visible or infrared light when activated. 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. local area network (LAN). A computer network

located on a user’s premises within a limited geographical area. (T)

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.

62 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

LSR. Link state record.

LSU. Link state update. LUN. See logical unit number. LWL. See long wavelength. MAC. Media access controller. 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. modem serial port. The upper serial port on the

control processor card (CP card) of the 2109 Model M12. Can be used to connect the CP card to a modem with a standard 9-pin modem cable. Consists of a DB-9 connector wired as an RS-232 device, and can be connected by serial cable to a data communications equipment (DCE) device. A Hayes-compatible modem or Hayes-emulation is required. The device name is ttyS1. See also data communications equipment port and terminal serial port.

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. NL_port. See node loop port. NMS. Network Management System. 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 is loop

capable. Used to connect an equipment port to the fabric in a loop configuration through a fabric loop port (FL_port).

node name. The unique identifier for a node, communicated during login and port discovery.

node port (N_port). A node port that is not loop capable. Used to connect an equipment port to the fabric.

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. 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. packet. A set of information transmitted across a

network. See also frame. 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.

PCI. Peripheral control interconnect. PDU. Power distribution unit. Performance Monitoring. A 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.

Glossary 63

phantom device. A device that is not physically in an arbitrated loop, but is logically included through the use of a phantom address.

private loop direct attach (PLDA). A subset of fibre channel standards for the operation of peripheral devices.

PLDA. See private loop direct attach. PLOGI. See port login. PMC. PCI mezzanine card. P/N. Part number. point-to-point. A Fibre Channel topology that employs

direct links between each pair of communicating entities.

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 Fibre Channel card that contains optical or copper port interfaces, and acts like a switch module. See also 16-port card.

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. 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.

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 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 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. RAN. Remote Asynchronous Notification. 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.

reduced instruction set computer (RISC). A computer that uses a small, simplified set of frequently used instructions for rapid processing.

64 IBM TotalStorage SAN Switch: 2109 Model M12 User’s Guide

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 procedure call (RPC). A facility that a client uses to request the execution of a procedure call from a server.

Remote Switch. A feature that runs on Fabric operating system (OS) and enables two fabric switches to be connected over an asynchronous transfer mode (ATM) connection. This requires a compatible Fibre Channel to ATM gateway, and can have a distance of up to 10 km (6.214 mi) between each switch and the respective ATM gateway.

request rate. The rate at which requests arrive at a servicing entity. See also service rate.

RPC. See remote procedure call. R_RDY. See receiver ready. RR_TOV. See resource recovery timeout value. RS-232 port. A port that conforms to a set of Electrical

Industries Association (EIA) standards. 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. RSH. Remote shell. RTC. Real time clock. rw. Read-write. SAN. See storage area network. SAN island. A group of storage devices and servers

connected to switches in a fabric.

SC. Standard connector. SCSI. See small computer systems interface.

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.

RISC. See reduced instruction set computer. RLS probing. Read link status of the arbitrated loop

physical addresses (AL_PAs).

ro. Read only. 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.

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).

SERDES. Serializer/deserializer. 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

Glossary 65

interface converter (GBIC) or small form-factor pluggable (SFP). See also long wavelength.

switch. Hardware that routes frames according to Fibre Channel protocol and is controlled by software.

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 signals between optical fiber cables and switches.

SMI. Special memory interface. SNIA. Storage Network Industry Association. 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 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.

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.

Tachyon. A type of host bus adapter. target. A storage device on a Fibre Channel network.

IBM 2109 Model M12 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Figures

Tables

Safety and environmental notices

Safety label checks

Environmental notices and statements

Laser safety

Usage restrictions

Battery notice

Fire suppression systems

Product recycling

Product disposal

About this document

Who should read this document

Additional information

2109 Model C36 with Model M12 library

Related documents

Web sites

Getting help

Getting software updates

How to send your comments

Introduction

Product overview

Throughput

Link distance

SFP fiber optic transceivers

System design overview

High availability

Reliability

Serviceability

Ports

Optical ports

Ethernet ports

Numbering

Rack mounting

Serial ports

Cooling system

Cable management

Worldwide name LED card

Power distribution system

Power distribution strategy

ac input

dc outputs

2N power architecture

CP blade assembly

CPU subsystem

Configuration

Management

Switch blade assembly

Switch blade assembly design

Fault monitoring and diagnostics

Diagnostic tests

System status indicators

Cable-side LEDs

Noncable side LEDs

Software features

Fabric OS

Interoperability

Security

Network manageability

Field replaceable units (FRUs)

Appendix A. Product specifications

2109 Model M12 components

Physical dimensions

2109 Model M12 and component weights

2109 Model C36 with Model M12 specifications

16-port card specifications

CP card specifications

Memory specifications

Battery specifications

Terminal serial port specifications

Modem serial port specifications

Facility specifications

Power specifications

Environmental requirements

General specifications