IBM System Storage N3700 Hardware And Service Manual
IBM System Storage N series
N3700 Hardw are and Service Guid e
GA32-0515-03
IBM System Storage N series
N3700 Hardw are and Service Guid e
GA32-0515-03
Note:
Before using this information and the product it supports, be sure to read the general information in “Notices” on page 65.
Fourth Edition (September 2006)
© Copyright International Business Machines Corporation 2005, 2006. All rights reserved.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.
Safety and environmental notices
This section contains information about:
v “Safety notices and labels”
v “Laser safety” on page vi
v “Rack safety” on page vii
v “Product recycling and disposal” on page viii
v “Battery return program” on page ix
v “Cable warning” on page x
Safety notices and labels
When using this product, observe the danger, caution, and attention notices
contained in this guide. The notices are accompanied by symbols that represent the
severity of the safety condition.
The following sections define each type of safety notice and provide examples.
The following notices and statements are used in IBM
below in order of increasing severity of potential hazards. Follow the links for more
detailed descriptions and examples of the danger, caution, and attention notices in
the sections that follow.
v Note: These notices provide important tips, guidance, or advice.
v “Attention notices” on page v: These notices indicate potential damage to
programs, devices, or data.
v “Caution notices” on page v: These statements indicate situations that can be
potentially hazardous to you.
v “Danger notices”: These statements indicate situations that can be potentially
lethal or extremely hazardous to you. Safety labels are also attached directly to
products to warn of these situations.
v In addition to these notices, “Labels” on page iv may be attached to the product
to warn of potential hazards.
®
documents. They are listed
Danger notices
A danger notice calls attention to a situation that is potentially lethal or extremely
hazardous to people. A lightning bolt symbol accompanies a danger notice to
represent a dangerous electrical condition. A sample danger notice follows.
© Copyright IBM Corp. 2005, 2006 iii
DANGER
An
electrical outlet that is not correctly wired could place
hazardous voltage on metal parts of the system or the devices
that attach to the system. It is the responsibility of the customer
to ensure that the outlet is correctly wired and grounded to
prevent an electrical shock.
A comprehensive danger notice provides instructions on how to avoid shock
hazards when servicing equipment. Unless instructed otherwise, follow the
procedures in the following danger notice.
DANGER
Electrical
voltage and current from power, telephone, and
communication cables are hazardous.
To avoid a shock hazard:
v Do not connect or disconnect any cables or perform
installation, maintenance, or reconfiguration of this product
during an electrical storm.
v Connect all power cords to a properly wired and grounded
electrical outlet. Ensure outlet supplies proper voltage and
phase rotation according to the system rating plate.
v Connect any equipment that will be attached to this product to
properly wired outlets.
v When possible, use one hand only to connect or disconnect
signal cables.
v Never turn on any equipment when there is evidence of fire,
water, or structural damage.
v Disconnect the attached power cords, telecommunications
systems, networks, and modems before you open the device
covers, unless instructed otherwise in the installation and
configuration procedures.
v Connect and disconnect cables as described below when
installing, moving, or opening covers on this product or
attached devices.
Labels
Disconnect:
To
1. Turn everything OFF (unless instructed otherwise).
2. Remove power cords from the outlet.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
Connect:
To
1. Turn everything OFF (unless instructed otherwise).
2. Attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlet.
5. Turn device ON.
As an added precaution, safety labels are often installed directly on products or
product components to warn of potential hazards.
The actual product safety labels may differ from these sample safety labels:
DANGER
Hazardous
voltage, current, or energy levels are present
inside any component that has this label attached.
Do not service, there are no serviceable parts.
iv IBM System Storage N series: N3700 Hardware and Service Guide
Caution notices
DANGER
Multiple
power cords
To remove all power to the device, disconnect all power cords.
A caution notice calls attention to a situation that is potentially hazardous to people
because of some existing condition. A caution notice can be accompanied by
different symbols, as in the examples below:
If the symbol is... It means...
A hazardous electrical condition with less severity than
electrical danger.
A generally hazardous condition not represented by other
safety symbols.
A hazardous condition due to the use of a laser in the
product. Laser symbols are always accompanied by the
classification of the laser as defined by the U. S.
Department of Health and Human Services (for example,
Class I, Class II, and so forth).
Sample caution notices:
CAUTION:
This product is equipped with a 3–wire (two conductors and
ground) power cable and plug. Use this power cable with a properly
grounded electrical outlet to avoid electrical shock.
CAUTION:
Data processing environments can contain equipment transmitting
on system links with laser modules that operate at greater than
Class 1 power levels. For this reason, never look into the end of an
optical fiber cable or open receptacle.
Attention notices
An attention notice indicates the possibility of damage to a program, device, or
system, or to data. An exclamation point symbol may accompany an attention
notice, but is not required. A sample attention notice follows:
Attention: Do not bend a fibre-optic cable to a radius less than 5 cm (2
in.); you can damage the cable. Tie wraps are not recommended for
optical cables because they can be easily overtightened, causing
damage to the cable.
Safety and environmental notices v
Laser safety
This equipment contains Class 1 laser products, and complies with FDA radiation
Performance Standards, 21 CFR Subchapter J and the international laser safety
standard IEC 825-2.
CAUTION:
This product contains a Class 1M laser. Do not view directly with optical
instruments. (C0280)
Attention: In the United States, use only SFP or GBIC optical transceivers that
CAUTION:
Data processing environments can contain equipment transmitting on
system links with laser modules that operate at greater than Class 1
power levels. For this reason, never look into the end of an optical fiber
cable or open receptacle.
comply with the FDA radiation performance standards, 21 CFR Subchapter J.
Internationally, use only SFP or GBIC optical transceivers that comply with IEC
standard 825–1. Optical products that do not comply with these standards may
product light that is hazardous to the eyes.
Usage restrictions
The optical ports of the modules must be terminated with an optical connector or
with a dust plug.
vi IBM System Storage N series: N3700 Hardware and Service Guide
Rack safety
Rack installation
DANGER
Always lower the leveling pads on the rack cabinet.
v
v Always install stabilizer brackets on the rack cabinet.
v To avoid hazardous conditions due to uneven mechanical
loading, always install the heaviest devices in the bottom of
the rack cabinet. Always install servers and optional devices
starting from the bottom of the rack cabinets.
v Rack-mounted devices are not to be used as a shelf or work
space. Do not place any object on top of rack-mounted
devices.
v Each rack cabinet might have more than one power cord. Be
sure to disconnect all power cords in the rack cabinet before
servicing any device in the rack cabinet.
v Connect all devices installed in a rack cabinet to power
devices installed in the same rack cabinet. Do not plug a
power cord from a device installed in one rack cabinet into a
power device installed in a different rack cabinet.
CAUTION:
v Do not install a unit in a rack where the internal rack ambient
temperatures will exceed the manufacturer’s recommended
ambient temperature for all your rack-mounted devices.
v Do not install a unit in a rack where the air flow is compromised.
Ensure that air flow is not blocked or reduced on any side, front,
or back of a unit used for air flow through the unit.
v Consideration should be given to the connection of the
equipment to the supply circuit so that overloading of the
circuits does not compromise the supply wiring or overcurrent
protection.
v To provide the correct power connection to a rack, refer to the
rating labels located on the equipment in the rack to determine
the total power requirement of the supply circuit.
v This drawer is a fixed drawer and should not be moved for
servicing unless specified by manufacturer. Attempting to move
the drawer partially or completely out of the rack may cause the
rack to become unstable or cause the drawer to fall out of the
rack.
Safety and environmental notices vii
Rack relocation (19″ rack)
CAUTION:
Removing components from the upper positions in the rack cabinet improves
rack stability during relocation. Follow these general guidelines whenever you
relocate a populated rack cabinet within a room or building:
v Reduce the weight of the rack cabinet by removing equipment starting at
the top of the rack cabinet. When possible, restore the rack cabinet to the
configuration of the rack cabinet as you received it. If this configuration is
not known, you must do the following:
– Remove all devices in the 32U position and above.
– Ensure that the heaviest devices are installed in the bottom of the rack
cabinet.
– Ensure that there are no empty U-levels between devices installed in the
rack cabinet below the 32U level.
– If the rack cabinet you are relocating is part of a suite of rack cabinets,
detach the rack cabinet from the suite.
– Inspect the route that you plan to take when moving the rack to
eliminate potential hazards.
– Verify that the route that you choose can support the weight of the
loaded rack cabinet. Refer to the documentation that came with your
rack cabinet for the weight of a loaded rack cabinet.
– Verify that all door openings are at least 760 x 2030 mm (30 x 80 in.).
– Ensure that all devices, shelves, drawers, doors, and cables are secure.
– Ensure that the four leveling pads are raised to their highest position.
– Ensure that there is no stabilizer bracket installed on the rack cabinet
during movement.
– Do not use a ramp inclined at more than ten degrees.
– Once the rack cabinet is in the new location, do the following:
- Lower the four leveling pads.
- Install stabilizer brackets on the rack cabinet.
- If you removed any devices from the rack cabinet, repopulate the rack
cabinet from the lowest position to the highest position.
– If a long distance relocation is required, restore the rack cabinet to the
configuration of the rack cabinet as you received it. Pack the rack
cabinet in the original packaging material, or equivalent. Also, lower the
leveling pads to raise the casters off of the pallet and bolt the rack
cabinet to the pallet.
Product recycling and disposal
This unit must be recycled or discarded according to applicable local and national
regulations. IBM encourages owners of information technology (IT) equipment to
responsibly recycle their equipment when it is no longer needed. IBM offers a
variety of product return programs and services in several countries to assist
equipment owners in recycling their IT products. Information on IBM product
recycling offerings can be found on IBM’s Internet site at:
www.ibm.com/ibm/environment/products/prp.shtml
viii IBM System Storage N series: N3700 Hardware and Service Guide
Notice: This mark applies only to countries within the European Union (EU) and
Norway.
This appliance is labelled in accordance with European Directive 2002/96/EC
concerning waste electrical and electronic equipment (WEEE). The Directive
determines the framework for the return and recycling of used appliances as
applicable throughout the European Union. This label is applied to various products
to indicate that the product is not to be thrown away, but rather reclaimed upon end
of life per this Directive.
In accordance with the European WEEE Directive, electrical and electronic
equipment (EEE) is to be collected separately and to be reused, recycled, or
recovered at end of life. Users of EEE with the WEEE marking per Annex IV of the
WEEE Directive, as shown above, must not dispose of end of life EEE as unsorted
municipal waste, but use the collection framework available to customers for the
return, recycling and recovery of WEEE. Customer participation is important to
minimize any potential effects of EEE on the environment and human health due to
the potential presence of hazardous substances in EEE. For proper collection and
treatment, contact your local IBM representative.
Battery return program
This product may contain sealed lead acid, nickel cadmium, nickel metal hydride,
lithium, or lithium ion battery. Consult your user manual or service manual for
specific battery information. The battery must be recycled or disposed of properly.
Recycling facilities may not be available in your area. For information on disposal of
batteries outside the United States, contact your local waste disposal facility or go
to the following Web site:
www.ibm.com/ibm/environment/products/batteryrecycle.shtml
In the United States, IBM has established a return process for reuse, recycling, or
proper disposal of used IBM sealed lead acid, nickel cadmium, nickel metal hydride,
Safety and environmental notices ix
Cable warning
and other battery packs from IBM Equipment. For information on proper disposal of
these batteries, contact IBM at 1-800-426-4333. Please have the IBM part number
listed on the battery available prior to your call.
For Taiwan:
WARNING: Handling the cord on this product or cords associated with
accessories sold with this product, will expose you to lead, a chemical
known to the State of California to cause cancer, and birth defects or
other reproductive harm. Wash hands after handling.
x IBM System Storage N series: N3700 Hardware and Service Guide
Contents
Safety and environmental notices . . . . . . . . . . . . . . . . . iii
Safety notices and labels . . . . . . . . . . . . . . . . . . . . . iii
Danger notices . . . . . . . . . . . . . . . . . . . . . . . . iii
Labels . . . . . . . . . . . . . . . . . . . . . . . . . . .iv
Caution notices . . . . . . . . . . . . . . . . . . . . . . . .v
Attention notices . . . . . . . . . . . . . . . . . . . . . . . .v
Laser safety . . . . . . . . . . . . . . . . . . . . . . . . . .vi
Usage restrictions . . . . . . . . . . . . . . . . . . . . . . .vi
Rack safety . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Rack installation . . . . . . . . . . . . . . . . . . . . . . . vii
Rack relocation (19″ rack) . . . . . . . . . . . . . . . . . . . . viii
Product recycling and disposal . . . . . . . . . . . . . . . . . . . viii
Battery return program . . . . . . . . . . . . . . . . . . . . . .ix
Cable warning . . . . . . . . . . . . . . . . . . . . . . . . . .x
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . .xv
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
About this document . . . . . . . . . . . . . . . . . . . . . . xix
Who should read this document . . . . . . . . . . . . . . . . . . xix
Supported features . . . . . . . . . . . . . . . . . . . . . . . xix
How this document is organized . . . . . . . . . . . . . . . . . . xix
Getting information, help, and service . . . . . . . . . . . . . . . .xx
Before you call . . . . . . . . . . . . . . . . . . . . . . . .xx
Using the documentation . . . . . . . . . . . . . . . . . . . .xx
Web sites . . . . . . . . . . . . . . . . . . . . . . . . . .xx
Accessing online technical support . . . . . . . . . . . . . . . . xxi
Hardware service and support . . . . . . . . . . . . . . . . . . xxi
Supported servers and operating systems . . . . . . . . . . . . . . xxi
Firmware updates . . . . . . . . . . . . . . . . . . . . . . . xxi
Fire suppression systems . . . . . . . . . . . . . . . . . . . xxi
Conventions and terminology used in this document . . . . . . . . . . . xxi
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . xxii
Command conventions . . . . . . . . . . . . . . . . . . . . . xxii
Formatting conventions . . . . . . . . . . . . . . . . . . . . xxii
Keyboard conventions . . . . . . . . . . . . . . . . . . . . . xxiii
How to send your comments . . . . . . . . . . . . . . . . . . . xxiii
Chapter 1. Preparing for the installation . . . . . . . . . . . . . . .1
Understanding the differences between early and current N3700 CPU modules 1
Required manuals, tools and equipment . . . . . . . . . . . . . . . .2
Handling static-sensitive devices . . . . . . . . . . . . . . . . . . .2
Planning and organizing the installation . . . . . . . . . . . . . . . .3
Hardware specifications . . . . . . . . . . . . . . . . . . . . .3
Rules for installing the N3700 in a rack . . . . . . . . . . . . . . .4
Guide to the installation process . . . . . . . . . . . . . . . . . .5
Chapter 2. Connecting an N3700 storage system . . . . . . . . . . .7
Handling fiber-optic cables . . . . . . . . . . . . . . . . . . . . .7
Connecting your N3700 storage system to a network . . . . . . . . . . .7
Connecting expansion units . . . . . . . . . . . . . . . . . . . . .7
Connecting your N3700 storage system to a power source . . . . . . . . .8
© Copyright IBM Corp. 2005, 2006 xi
Connecting to third-party devices or Fibre Channel switches . . . . . . . .8
Rules for connecting the third-party devices . . . . . . . . . . . . . .8
Connecting your N3700 storage system to an ASCII terminal console . . . . .9
ASCII terminal console wiring . . . . . . . . . . . . . . . . . . .9
DB-9 to RJ-45 console adapter pin connections . . . . . . . . . . . .9
Connecting to an ASCII terminal console . . . . . . . . . . . . . .10
Chapter 3. Configuring an N3700 storage system . . . . . . . . . . .11
Configuring the N3700 storage system . . . . . . . . . . . . . . . .11
System setup information worksheet . . . . . . . . . . . . . . . .11
Disk assignments . . . . . . . . . . . . . . . . . . . . . . .12
Disk ownership worksheet . . . . . . . . . . . . . . . . . . . .13
Booting your N3700 storage system for the first time . . . . . . . . . .14
Setup script questions . . . . . . . . . . . . . . . . . . . . .16
Configuring the Fibre Channel port . . . . . . . . . . . . . . . . .17
N3700 storage system active-active (clustered) configurations . . . . . .17
Configuring for initiator mode . . . . . . . . . . . . . . . . . . .18
Chapter 4. Monitoring your system . . . . . . . . . . . . . . . .19
Monitoring the front operation panel . . . . . . . . . . . . . . . . .19
Location of LEDs . . . . . . . . . . . . . . . . . . . . . . .19
About the disk shelf ID display . . . . . . . . . . . . . . . . . .20
Interpreting the front panel LEDs . . . . . . . . . . . . . . . . .20
Monitoring the power supply . . . . . . . . . . . . . . . . . . . .21
Location of LEDs . . . . . . . . . . . . . . . . . . . . . . .21
Interpreting power supply LEDs . . . . . . . . . . . . . . . . . .22
Monitoring the Fibre Channel disk . . . . . . . . . . . . . . . . . .22
Location of LEDs . . . . . . . . . . . . . . . . . . . . . . .22
Interpreting Fibre Channel disk LEDs . . . . . . . . . . . . . . . .23
Monitoring the CPU module . . . . . . . . . . . . . . . . . . . .23
Location of LEDs on the CPU module . . . . . . . . . . . . . . .23
Interpreting Ethernet LEDs on an N3700 storage system . . . . . . . .24
Interpreting Fibre Channel LEDs on an N3700 storage system . . . . . .24
Chapter 5. Replacing N3700 storage system devices . . . . . . . . . .27
Replacing a disk . . . . . . . . . . . . . . . . . . . . . . . .27
About replacing a disk in your storage system . . . . . . . . . . . .27
Removing a disk . . . . . . . . . . . . . . . . . . . . . . .27
Installing a disk . . . . . . . . . . . . . . . . . . . . . . . .27
Replacing a drive blank cover or N3700 load board . . . . . . . . . . .28
Removing a drive blank cover or N3700 load board . . . . . . . . . .28
Installing a drive blank cover or N3700 load board . . . . . . . . . . .28
Replacing the CPU module . . . . . . . . . . . . . . . . . . . .28
Location of the CPU module and blank filler module . . . . . . . . . .29
CPU module contents . . . . . . . . . . . . . . . . . . . . .29
Reasons for removing the CPU module . . . . . . . . . . . . . . .29
Removing the CPU module . . . . . . . . . . . . . . . . . . .30
Procedures for installing the CPU module . . . . . . . . . . . . . .31
Moving the Data ONTAP software . . . . . . . . . . . . . . . .32
Installing the module in a non-active-active system . . . . . . . . .32
Installing the module in an active-active (clustered) system with cf disabled 33
Hot-swapping a module in an active-active (clustered) system while in
takeover mode . . . . . . . . . . . . . . . . . . . . . .34
Replacing the battery on the CPU module . . . . . . . . . . . . . . .35
Replacing the SDRAM DIMM on the CPU module . . . . . . . . . . . .37
Required memory configuration . . . . . . . . . . . . . . . . . .37
xii IBM System Storage N series: N3700 Hardware and Service Guide
Replacing the SDRAM DIMM . . . . . . . . . . . . . . . . . .37
Replacing the CompactFlash card on the CPU module . . . . . . . . . .38
Replacing the CompactFlash card . . . . . . . . . . . . . . . . .38
Replacing a power supply . . . . . . . . . . . . . . . . . . . . .39
Rules for replacing power supplies . . . . . . . . . . . . . . . .39
Removing a power supply . . . . . . . . . . . . . . . . . . . .40
Installing a power supply . . . . . . . . . . . . . . . . . . . .40
Chapter 6. Error messages and troubleshooting . . . . . . . . . . .43
Where to get more information . . . . . . . . . . . . . . . . . . .43
Startup error messages . . . . . . . . . . . . . . . . . . . . . .43
POST messages . . . . . . . . . . . . . . . . . . . . . . .43
Boot messages . . . . . . . . . . . . . . . . . . . . . . . .44
POST error messages . . . . . . . . . . . . . . . . . . . . .44
Environmental EMS messages . . . . . . . . . . . . . . . . . . .47
Netboot process for the N3700 storage system . . . . . . . . . . . . .50
Configuration requirements for netboot servers . . . . . . . . . . . .50
Performing the netboot process from a remote image . . . . . . . . . .50
Booting your N3700 storage system from a backup firmware image . . . . .50
Booting with a backup firmware image . . . . . . . . . . . . . . .50
Troubleshooting the N3700 storage system . . . . . . . . . . . . . .51
Appendix A. Recommended power line sizes . . . . . . . . . . . . .55
Recommended AC power line sizes . . . . . . . . . . . . . . . . .55
Appendix B. Power cord list for N series products . . . . . . . . . .57
Appendix C. Parts list for the N3700 . . . . . . . . . . . . . . . .59
Subassemblies and parts . . . . . . . . . . . . . . . . . . . . .59
Hard disk drives . . . . . . . . . . . . . . . . . . . . . . . .59
Cables and connectors . . . . . . . . . . . . . . . . . . . . . .60
Power cords . . . . . . . . . . . . . . . . . . . . . . . . . .60
Appendix D. IBM System Storage N series documentation . . . . . . .61
N7600 and N7800 storage systems library . . . . . . . . . . . . . . .61
N3700 storage system library . . . . . . . . . . . . . . . . . . .61
N5200 and N5500 filer storage systems library . . . . . . . . . . . . .61
EXN1000 and EXN2000 expansion units library . . . . . . . . . . . . .61
Data ONTAP 7.2 gateway storage systems library . . . . . . . . . . . .61
Data ONTAP 7.1 gateway storage systems library . . . . . . . . . . . .62
Data ONTAP 7.2 library . . . . . . . . . . . . . . . . . . . . . .62
Data ONTAP 7.1 library . . . . . . . . . . . . . . . . . . . . . .63
Other N series and N series-related documents . . . . . . . . . . . . .63
Notices . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Edition notice . . . . . . . . . . . . . . . . . . . . . . . . .66
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . .66
Important notes . . . . . . . . . . . . . . . . . . . . . . . . .67
Electronic emission notices . . . . . . . . . . . . . . . . . . . .68
Federal Communications Commission (FCC) Class A Statement . . . . .68
Industry Canada Class A Emission Compliance Statement . . . . . . . .68
Avis de conformité à la réglementation d’Industrie Canada . . . . . . . .68
European Union (EU) Electromagnetic Compatibility Directive . . . . . . .68
Australia and New Zealand Class A statement . . . . . . . . . . . .69
Germany Electromagnetic Compatibility Directive . . . . . . . . . . .69
People’s Republic of China Class A Electronic Emission Statement . . . .69
Contents xiii
Taiwan Class A warning statement . . . . . . . . . . . . . . . . .70
Japan VCCI Class A ITE Electronic Emission Statement . . . . . . . . .70
Korean Class A Electronic Emission Statement . . . . . . . . . . . .70
Power cords . . . . . . . . . . . . . . . . . . . . . . . . . .70
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
xiv IBM System Storage N series: N3700 Hardware and Service Guide
Figures
1. Port labeling for early N3700 CPU module designs . . . . . . . . . . . . . . . . . . .1
2. Port labeling for current N3700 CPU module designs . . . . . . . . . . . . . . . . . .2
3. SES bays example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4. Disk shelf ID display and the front panel LEDs . . . . . . . . . . . . . . . . . . . .19
5. LED indications of normal and fault conditions . . . . . . . . . . . . . . . . . . . .20
6. Power supply LED location . . . . . . . . . . . . . . . . . . . . . . . . . . .22
7. Fibre Channel disk LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
8. Ethernet and Fibre Channel LEDs . . . . . . . . . . . . . . . . . . . . . . . .24
9. CPU module contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
10. Cam mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
11. CompactFlash card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
12. Battery housing in CPU module . . . . . . . . . . . . . . . . . . . . . . . . .36
13. Releasing DIMM latches . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
14. CompactFlash card removal . . . . . . . . . . . . . . . . . . . . . . . . . . .38
15. Releasing the power supply handle . . . . . . . . . . . . . . . . . . . . . . . .40
16. Raising the power supply handle . . . . . . . . . . . . . . . . . . . . . . . . .41
17. Pinhole reset button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
© Copyright IBM Corp. 2005, 2006 xv
xvi IBM System Storage N series: N3700 Hardware and Service Guide
Tables
1. N3700 characteristics hardware specifications . . . . . . . . . . . . . . . . . . . .3
2. Installation process procedures . . . . . . . . . . . . . . . . . . . . . . . . . .5
3. RJ-45 connection pinout for the ASCII terminal wiring . . . . . . . . . . . . . . . . . .9
4. Console adapter pin number connections . . . . . . . . . . . . . . . . . . . . . .10
5. Communication parameters . . . . . . . . . . . . . . . . . . . . . . . . . . .10
6. System setup worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
7. Disk shelf 1 and disk shelf 2 disk ownership worksheet . . . . . . . . . . . . . . . . .13
8. Disk shelf 3 and disk shelf 4 disk ownership worksheet . . . . . . . . . . . . . . . . .13
9. N3700 front panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
10. Power supply LED interpretation . . . . . . . . . . . . . . . . . . . . . . . . .22
11. Fibre Channel disk LED interpretation . . . . . . . . . . . . . . . . . . . . . . .23
12. Ethernet LED interpretation . . . . . . . . . . . . . . . . . . . . . . . . . . .24
13. Fibre Channel LED interpretation . . . . . . . . . . . . . . . . . . . . . . . . .24
14. CompactFlash card testing options . . . . . . . . . . . . . . . . . . . . . . . .39
15. Corrective action documentation . . . . . . . . . . . . . . . . . . . . . . . . .43
16. POST error message descriptions . . . . . . . . . . . . . . . . . . . . . . . .45
17. Environmental EMS messages . . . . . . . . . . . . . . . . . . . . . . . . . .47
18. 110V, single phase recommended conductor sizes . . . . . . . . . . . . . . . . . .55
19. 220V, single phase recommended conductor sizes . . . . . . . . . . . . . . . . . .55
20. American Wire Gage to Harmonized Cordage equivalents . . . . . . . . . . . . . . . .55
21. Subassembly and part FRUs and descriptions . . . . . . . . . . . . . . . . . . . .59
22. HDDs FRUs and descriptions . . . . . . . . . . . . . . . . . . . . . . . . . .59
23. Cable and connector FRUs and descriptions . . . . . . . . . . . . . . . . . . . .60
24. Power cord FRUs and descriptions . . . . . . . . . . . . . . . . . . . . . . . .60
© Copyright IBM Corp. 2005, 2006 xvii
xviii IBM System Storage N series: N3700 Hardware and Service Guide
About this document
This guide describes how to connect, manage, and troubleshoot an IBM System
Storage
™
N3700 (model number 2863-A10 or 2863-A20) storage system.
For information about installation and setup, see the Installation and Setup
Instructions that came with your system.
Compliance ID 2863–NAS covers the following models: 2863–A10, 2863–A20, and
2863–001.
Who should read this document
This guide is for qualified system administrators and service personnel who are
familiar with IBM storage systems.
Supported features
IBM System Storage N series filers and expansion boxes are driven by NetApp
Data ONTAP
documentation are neither offered nor supported by IBM. Please contact your local
IBM representative or reseller for further details.
Information about supported features can also be found at the following Web site:
www.ibm.com/storage/support/nas/
®
software. Some features described in the product software
®
A listing of currently available N series products and features can be found at the
following Web site:
www.ibm.com/storage/nas/
How this document is organized
This document contains the following chapters:
v Chapter 1, “Preparing for the installation,” on page 1 provides an overview of the
entire system installation process, hardware specifications, and the appropriate
documentation references for the procedures.
v Chapter 2, “Connecting an N3700 storage system,” on page 7 describes how to
connect an N3700 storage system.
v Chapter 3, “Configuring an N3700 storage system,” on page 11 describes how to
configure an N3700 storage system.
v Chapter 4, “Monitoring your system,” on page 19 describes how to monitor your
system based on the LEDs for your system.
v Chapter 5, “Replacing N3700 storage system devices,” on page 27 describes
how to replace disks and other devices in your N3700 storage system.
v Chapter 6, “Error messages and troubleshooting,” on page 43 lists error
messages you might encounter during the boot process and provides
troubleshooting information.
v Appendix A, “Recommended power line sizes,” on page 55 discusses how to
determine the power line lengths running from your N3700 storage system to the
power source.
© Copyright IBM Corp. 2005, 2006 xix
v Appendix B, “Power cord list for N series products,” on page 57 lists the feature
codes for the power cords for the N3700.
v Appendix C, “Parts list for the N3700,” on page 59 lists the FRU part numbers
and descriptions for the N3700 unit.
Getting information, help, and service
If you need help, service, or technical assistance or just want more information
about IBM products, you will find a wide variety of sources available from IBM to
assist you. This section contains information about where to go for additional
information about IBM and IBM products, what to do if you experience a problem
with your IBM System Storage N series product, and whom to call for service, if it is
necessary.
The following applies in Taiwan:
Before you call
Before you call, make sure that you have taken these steps to try to solve the
problem yourself:
v Check all cables to make sure that they are connected.
v Check the power switches to make sure that the system is turned on.
v Use the troubleshooting information in your system documentation and use the
diagnostic tools that come with your system.
v Refer to the IBM Support Web site for information on known problems and
limitations.
Using the documentation
Information about the N series product and Data ONTAP software is available in
printed documents and a documentation CD that comes with your system. The
same documentation is available as PDF files on the IBM NAS support Web site:
www.ibm.com/storage/support/nas/
Web sites
IBM maintains pages on the World Wide Web where you can get the latest
technical information and download device drivers and updates.
v For NAS product information, go to the following Web site:
www.ibm.com/storage/nas/
v For NAS support information, go to the following Web site:
www.ibm.com/storage/support/nas/
v For AutoSupport information, go to the following Web site:
www.ibm.com/storage/support/nas/
v You can order publications through the IBM Publications Ordering System at the
following Web site:
xx IBM System Storage N series: N3700 Hardware and Service Guide
www.elink.ibmlink.ibm.com/public/applications/publications/
cgibin/pbi.cgi/
Accessing online technical support
For online Technical Support for your IBM N series product, visit the following Web
site:
www.ibm.com/storage/support/nas/
Hardware service and support
You can receive hardware service through IBM Integrated Technology Services.
Visit the following Web site for support telephone numbers:
www.ibm.com/planetwide/
Supported servers and operating systems
IBM N series products attach to many servers and many operating systems. To
determine the latest supported attachments, visit the following Web site and access
the IBM System Storage N series interoperability matrix:
www.ibm.com/storage/support/nas/
Firmware updates
As with all devices, it is recommended that you run the latest level of firmware,
which is embedded in Data ONTAP. If there are changes, they will be posted to the
following Web site:
www.ibm.com/storage/support/nas/
Note: If you do not see new changes on the Web site, you are running the latest
level of firmware.
Verify that the latest level of firmware is installed on your machine before contacting
IBM for technical support.
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.
Conventions and terminology used in this document
This guide uses the following terminology, command conventions, format
conventions and keyboard conventions:
About this document xxi
Terminology
In this and other IBM N series documents, the term filer or storage system
describes IBM N series models that either contain internal disk storage or attach to
the disk storage expansion units specifically designed for the IBM N series storage
systems.
Note: In previous releases, the EXN2000 expansion unit was referred to as the
EXP600 expansion unit.
This guide uses the following terms:
v AT-FCX refers to the controller module of the serial advanced technology
attachment ( SATA) storage expansion unit (EXN1000).
v Active-Active configuration (sometimes referred to as clustered configuration)
refers to a High Availability system with at least two nodes that share resources
to provide redundancy.
v CPU module refers to the system controller module that executes the software
on an N3700. The CPU modules are at the rear-center of the N3700 storage
system.
v Device carrier refers to the container that encases a fan/power supply unit or a
disk.
v Disk applies to any hard disk drive.
v Disk shelf or expansion unit refers to any shelf or expansion unit containing hard
disk drives.
v ESH2 refers to the controller module of the fibre-channel disk storage expansion
unit (EXN2000).
v Loop refers to the daisy-chained disk shelves (expansion units) connected to an
N3700 storage system.
v Node refers to a CPU module when used in an active-active (clustered)
configuration.
v System and storage system refer to the N3700 storage system (filer), either by
itself or with additional disk shelves.
v SES refers to SCSI enclosure services.
Command conventions
You can enter commands on the system console or from any client that can obtain
access to the storage system using a Telnet session. In examples that illustrate
commands executed on a UNIX
®
workstation, the command syntax and output
might differ, depending on your version of UNIX.
Formatting conventions
The following table lists different character formats used in this guide to set off
special information.
xxii IBM System Storage N series: N3700 Hardware and Service Guide
Formatting convention Type of information
Italic type
v Words or characters that require special
attention.
v Placeholders for information you must
supply. For example, if the guide requires
you to enter the fctest adaptername
command, you enter the characters
“fctest” followed by the actual name of the
adapter.
v Book titles in cross-references.
Monospaced font
v Command and daemon names.
v Information displayed on the system
console or other computer monitors.
v The contents of files.
Bold monospaced font Words or characters you type. What you type
is always shown in lowercase letters, unless
your program is case-sensitive and
uppercase letters are necessary for it to work
properly.
Keyboard conventions
This guide uses capitalization and some abbreviations to refer to the keys on the
keyboard. The keys on your keyboard might not be labeled exactly as they are in
this guide.
What is in this guide... What it means...
hyphen (-) Used to separate individual keys. For
Enter Used to refer to the key that generates a
type Used to mean pressing one or more keys on
enter Used to mean pressing one or more keys
How to send your comments
Your feedback is important in helping us to provide the most accurate and
high-quality information. If you have comments or suggestions for improving this
publication, you can send us comments electronically by using these addresses:
v Internet: starpubs@us.ibm.com
™
v IBMLink
v IBMLink from Canada: STARPUBS at TORIBM
v IBM Mail Exchange: USIB3WD at IBMMAIL
from U.S.A.: STARPUBS at SJEVM5
example, Ctrl-D means holding down the Ctrl
key while pressing the D key.
carriage return, although the key is named
Return on some keyboards.
the keyboard.
and then pressing the Enter key.
can also mail your comments by using the Reader Comment Form in the back
You
of this manual or direct your mail to:
About this document xxiii
International Business Machines Corporation
Information Development
Dept. GZW
9000 South Rita Road
Tucson, AZ 85744–0001
U.S.A.
xxiv IBM System Storage N series: N3700 Hardware and Service Guide
Chapter 1. Preparing for the installation
This chapter provides an overview of the entire IBM System Storage N series
N3700 system installation process, hardware specifications, and the appropriate
documentation references for the procedures. Refer to the Installation and Setup
Instructions for your storage system for further information about installing your
equipment.
This chapter discusses the following topics:
v “Understanding the differences between early and current N3700 CPU modules”
v “Required manuals, tools and equipment” on page 2
v “Handling static-sensitive devices” on page 2
v “Planning and organizing the installation” on page 3
Understanding the differences between early and current N3700 CPU modules
N3700 storage systems with system serial numbers between 13-00001 and
13-01000 shipped with an early CPU module design. (In general, these are N3700
systems that shipped prior to January 31, 2006.) Current N3700 systems (with
system serial numbers 13-01001 and higher) ship with the current CPU module
design, which uses different Fibre Channel connectors. (In general, these are
N3700 systems that shipped after January 31, 2006.)
Regardless of the CPU module design, all N3700 storage systems offer the same
functionality. Field repairs or upgrades may use the current CPU module design on
any N3700 system.
The early CPU module is easily distinguished from the current CPU module design
by the rear port labeling, shown in Figure 1. The early CPU module uses an
integrated SFP for Fibre Channel Port C (used for third-party devices), and it uses a
special HSS connector for Fibre Channel Port B to connect the N3700 to expansion
units.
Example: No additional disk shelves
Figure 1. Port labeling for early N3700 CPU module designs
The current CPU module design uses pluggable SFP connections for both Fibre
Channel ports. The current CPU module labeling is shown in Figure 2 on page 2.
The SFP required for connections to the Fibre Channel Port C (used for third-party
devices) is included with all N3700s that ship with the current CPU module design.
For Port B (used for connections to expansion units), an SFP is required only for
connections using optical cables (recommended). The SFP for Port B is shipped
with the cables ordered with your expansion unit.
© Copyright IBM Corp. 2005, 2006 1
C B
Figure 2. Port labeling for current N3700 CPU module designs
Te r m
A
On
Off
Example: No additional disk shelves
Attention: Depending on the design of your N3700 CPU module, direct
connections to expansion units must be made with either Fibre Channel copper
cables or Fibre Channel optical cables, as described in the following bullets:
v For direct connections to N3700 early CPU module designs: Use
NAS-to-EXP Fibre Channel copper cables (FC #2020 or 2022). For attachment to
an N3700 Model A10, one NAS-to-EXP Fibre Channel copper cable is required.
For attachment to an N3700 Model A20, two NAS-to-EXP Fibre Channel copper
cables are required.
v For direct connections to N3700 current CPU module designs: Use an
LC-to-LC Fibre Channel optical cable and two SFPs for attachment to an N3700
Model A10. Use two LC-to-LC Fibre Channel optical cables and four SFPs for
attachment to an N3700 Model A20.
Required manuals, tools and equipment
B
You need the following manuals:
v Installation and Setup Instructions for your N3700 storage system
v IBM System Storage N series Data ONTAP Software Setup Guide for your
version of Data ONTAP, if applicable
v IBM System Storage N series Data ONTAP Cluster Installation and
Administration Guide or IBM System Storage N series Data ONTAP Active-Active
Configuration Guide for your version of Data ONTAP, if applicable
You need to supply the following tools and equipment:
v Ethernet LAN cables
v Fibre Channel cables
v Console (for example, a PC or laptop) and a serial null modem cable
v #2 Phillips screwdriver
v Pointed tool for setting termination switches
v 7-mm nut driver
v Grounding leash and ESD strap
To verify your shipping contents, see the IBM System Storage N3700
Note:
Installation and Setup Instructions.
Handling static-sensitive devices
CAUTION:
The N3700 uses electronic components that are sensitive to static electricity.
Static discharge from your clothing or other fixtures around you can damage
these components. Put on an antistatic ESD strap and grounding leash to free
yourself of static electricity before touching any electronic components.
2 IBM System Storage N series: N3700 Hardware and Service Guide
Attention: Static electricity can damage electronic devices and your system. To
avoid damage, keep static-sensitive devices in their static-protective packages until
you are ready to install them.
To reduce the possibility of electrostatic discharge (ESD), observe the following
precautions:
v Limit your movement. Movement can cause static electricity to build up around
you.
v Handle the device carefully, holding it by its edges or its frame.
v Do not touch solder joints, pins, or exposed printed circuitry.
v Do not leave the device where others can handle and possibly damage the
device.
v While the device is still in its static-protective package, touch it to an unpainted
metal part of the system unit for at least two seconds. This drains static electricity
from the package and from your body.
v Remove the device from its package and install it directly into your system unit
without setting it down. If it is necessary to set the device down, place it in its
static-protective package. Do not place the device on your system unit cover or
on a metal table. Take additional care when handling devices during cold weather
because heating reduces indoor humidity and increases static electricity.
Planning and organizing the installation
This section identifies the shipment contents and the rules and regulations you
need to observe for the proper installation of your N3700. It also provides an
overview of the entire system installation process and the appropriate
documentation references for the procedures.
For detailed information, see the following topics:
v “Hardware specifications”
v “Rules for installing the N3700 in a rack” on page 4
v “Guide to the installation process ” on page 5
Hardware specifications
The following table lists the characteristics and requirements for your hardware.
DANGER
people are required to lift the N3700 during installation. Do not
Three
remove the disk drives or drive blank covers to reduce the weight.
Table 1. N3700 characteristics hardware specifications
Physical characteristics
Weight With maximum
Rack units 3U
Height 5.25 in. (13.3 cm)
Width 17.6 in. (44.8 cm)
Depth 20 in. (50.9 cm)
78.8 lbs (35.8 kg)
number of disk drives
Empty 50.6 lbs (23 kg)
Chapter 1. Preparing for the installation 3
Table 1. N3700 characteristics hardware specifications (continued)
Clearance dimensions
Front-cooling All versions 6 in. (15.3 cm)
Rear-cooling All versions 12 in. (30.5 cm)
Rear-maintenance All versions 12 in. (30.5 cm)
Environmental requirements
Note: Operating at the extremes of the following environmental requirements might
increase the risk of device failure.
Operating temperature maximum range 50° F to 104° F
(10° C to 40° C)
Operating temperature recommended range 68° F to 77° F
(20° C to 25° C)
Nonoperating temperature range -40° F to 149° F
(-40° C to 65° C)
Relative humidity 10 to 90%
noncondensing
Recommended operating temperature
40 to 55%
relative humidity range
Maximum wet bulb temperature 28° C (82° F)
Maximum altitude 3050 m (10,000 ft.)
Acoustic level 56.4 dBA @ 23° C
Electrical requirements
Input voltage, V 100-120/200-240
Input current actual, A 4/2
Maximum electrical power 100 to 120 VAC, 7
Input power actual, with all drives writing, W 440
Input power actual, by JEL measurements, W 389
Thermal dissipation, BTU/hr 1,215
Inrush current, A @ V 25 @ 110/50 @ 220
Rules for installing the N3700 in a rack
You need to observe the following rules and restrictions when installing an N3700 in
a standard 19-inch (48.26 cm) equipment rack with mounting rails:
5.64 bels @ 23° C
A/200 to 240 VAC ,
3.5 A; 50/60Hz
4 IBM System Storage N series: N3700 Hardware and Service Guide
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