IBM SAN256B-6 Manual

IBM Storage Networking SAN256B-6
MTM Service information: 8961-F04
Installation, Service, and User Guide
SC27-8967-03
IBM

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.
Before you use the information in this publication, be sure to read the general information under “Notices” on page 251.
Copyright
Portions Copyright © 2016 Brocade Communications Systems, Inc. All Rights Reserved.
© Copyright IBM Corporation 2018.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Figures .............. vii
Tables ............... ix
Read this first ............ xi
Getting help .............. xi
Accessibility features ........... xi
How to send your comments ........ xii
Safety and environmental notices ... xiii
Safety notices and labels .......... xiii
Cautions ............... xiii
Danger notices ............. xv
Safety labels.............. xvii
Attention notices ............ xviii
ESD precautions ............ xix
Rack safety .............. xix
Rack installation ........... xix
Rack relocation (19" rack) ........ xxi
Product recycling and disposal........ xxi
What is new in this document .... xxiii
About this document ........ xxv
Product documentation .......... xxv
Brocade documents ........... xxv
IBM and Brocade product matrix....... xxv
Supported hardware and software xxvii
Introducing the SAN256B-6 ...... 1
Product features ............. 1
Hardware components ........... 2
Port-side view of device .......... 3
Port-side slot numbering .......... 4
Nonport-side view of the device ........ 4
Preparing for the Installation...... 7
Safety precautions ............ 7
Facility requirements ........... 9
Time and items required for installation ..... 10
Quick installation checklists ......... 11
Items shipped ............. 14
Mounting the Device ......... 15
Mounting options ............ 15
Mounting precautions ........... 15
Unpacking and transporting the device ..... 17
Installing the 8U Chassis Airflow Diversion or Port
Side Exhaust Kit for Four-Post Racks ...... 18
Time and items required ......... 18
Installing the device in an 18–24-inch rack ... 18
Parts list ............. 19
Torque requirements ......... 21
Assembling the rack hardware ...... 21
Installing the device in the rack...... 25
Installing the device in a 27-31-inch rack ... 26
Parts list ............. 26
Torque requirements ......... 28
Assembling the rack hardware ...... 28
Installing the device in the rack...... 32
Installing the 8U Chassis Mid-Mount Rack Kit for
Two-Post Racks ............. 33
Time and items required ......... 33
Parts list .............. 33
Assembling the rack hardware ....... 34
Installing the device in the rack....... 37
Installing the 8U Chassis 27-31-Inch Rail Rack Kit
for Four-Post Racks............ 38
Time and items required ......... 38
Parts list .............. 39
Assembling the rack hardware ....... 40
Installing the device in the rack....... 41
Removing the protective cover ........ 42
Initial Setup and Verification ..... 45
Configuration and verification task guide .... 45
Items required ............. 46
Providing power to the device ........ 46
Connecting power cord to AC power supplies.. 47
Connecting power cord to HVAC/HVDC power
supplies .............. 48
Using HVAC/HVDC power cords..... 51
Establishing a serial connection to the device ... 53
Configuring the IP addresses ........ 54
Establishing an Ethernet connection to the device.. 55
Setting the domain ID ........... 56
Setting the date and time .......... 56
Setting the time zone .......... 57
Synchronizing local time with an external source 58
Customizing the chassis and switch name .... 59
Veifying the PID mode .......... 59
Verifying installed licenses and license key .... 60
Verifying correct operation ......... 60
Backing up the configuration ........ 61
Powering down the chassis ......... 62
Installing Transceivers and Cables... 65
Supported transceivers and cables ....... 65
Port and extension blade transceivers..... 67
Core routing blades........... 69
4x16 Gbps 2 km LWL QSFP ....... 70
4x32 Gbps 2 km LWL QSFPs ...... 71
Time and items required .......... 71
Precautions specific to transceivers and cables ... 72
Cleaning the fiber-optic connectors ...... 72
Cable management ............ 73
Installing an SFP+ transceiver ........ 73
© Copyright IBM Corp. 2018 iii
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Replacing an SFP+ transceiver ........ 75
Installing a QSFP transceiver ........ 76
Replacing a QSFP transceiver ........ 77
Verifying the operation of new transceivers.... 78
Monitoring the device ........ 81
Interpreting FC32-48 port blade LEDs ..... 81
Interpreting FC32-64 port blade LEDs ..... 83
Interpreting extension blade LEDs ....... 86
Interpreting control processor blade LEDs .... 88
Interpreting core routing blade LEDs ...... 90
Interpreting WWN card LEDs ........ 92
Interpreting power supply LEDs ....... 93
Interpreting fan assembly LEDs ....... 95
Interpreting POST and boot results ...... 96
POST ............... 96
Boot ................ 97
Using monitoring commands ........ 97
chassisShow ............. 97
errDump and errShow ......... 100
fanShow .............. 101
haShow .............. 101
historyShow............. 101
psShow .............. 102
sensorShow ............. 102
slotShow .............. 103
sfpShow .............. 103
switchShow ............. 107
supportSave ............. 108
tempShow ............. 110
Running diagnostic tests.......... 111
Port and Extension Blades ..... 113
FC32-48 port blade overview ........ 113
FC32-48 port blade numbering and trunking .. 113
FC32-64 port blade overview ........ 114
FC32-64 port blade numbering and trunking .. 115
Extension blade overview ......... 116
Extension features ........... 117
SX6 blade port numbering and trunking ... 118
Precautions specific to the blade ....... 119
Faulty blade indicators .......... 119
Time and items required for removal and
installation .............. 120
Removing a blade ............ 120
Installing a blade ............ 122
Verifying blade operation ......... 122
Core Routing Blades ........ 125
Core routing blade overview ........ 125
CR32-4 port numbering ......... 125
ICL trunking groups .......... 126
ICL cabling configurations ........ 127
Precautions specific to the blade ....... 129
Faulty core routing blade indicators ...... 130
Time and items required.......... 130
Removing a core routing blade ....... 131
Installing a core routing blade ........ 132
Verifying blade operation ......... 133
Control Processor Blades ...... 135
Control processor blade overview ...... 135
CPX6 port identification ......... 136
Precautions specific to the blade ....... 136
Blade fault indicators........... 137
Blade replacement task guide ........ 137
Time and items required for replacement .... 138
Preparing for replacement ......... 138
Replacing a CP blade........... 139
Hot-swap procedure .......... 140
Removing a blade .......... 140
Installing a blade .......... 141
Verifying and synchronizing firmware on
blades .............. 142
Downloading firmware from FTP server 143
Downloading firmware from USB device 144
Cold-swap procedure.......... 145
Removing a blade .......... 145
Installing a blade .......... 146
Completing the replacement ....... 147
Verifying blade operation ......... 148
WWN Cards ............ 149
WWN card overview ........... 149
WWN Location Numbering ....... 149
Precautions specific to WWN cards ...... 150
WWN card fault indicators ......... 150
WWN card replacement task guide ...... 151
Time and items required for replacement .... 152
Using the wwnrecover utility ........ 152
Preparing for WWN card replacement ..... 153
Hot-swap replacement .......... 154
Cold-swap replacement .......... 156
Removing the WWN card and bezel...... 157
Configuring airflow direction on WWN cards .. 158
Verifying WWN card operation ....... 160
Power Supply Assemblies ...... 161
2870 W AC power supply overview ...... 161
Fan and power supply airflow ...... 162
Power supply assembly numbering ..... 163
HVAC/HVDC power supply overview.... 163
Precautions specific to power supply assembly .. 165
Power supply assembly fault indicators .... 165
Power supply assembly task guide ...... 166
Time and items required.......... 167
Removing a power supply ......... 167
Installing a power supply ......... 168
Verifying power supply operation ...... 168
Fan Assemblies .......... 171
Fan assembly overview .......... 171
Fan and power supply airflow ...... 172
Fan assembly numbering ........ 173
Precautions specific to fan assemblies ..... 173
Fan assembly fault indicators ........ 174
Fan assembly task guide ......... 174
Time and items required.......... 175
Removing a fan assembly ......... 175
Installing a fan assembly ......... 176
iv SAN256B-6 Installation, Service, and User Guide
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Verifying fan operation .......... 176
Blade Filler Panels ......... 179
Blade filler panel removal and replacement ... 179
Removing a filler panel .......... 179
Installing a filler panel .......... 180
Cable management fingers ..... 183
Cable management fingers overview ..... 183
Time and items required for removal and
replacement .............. 183
Removing the cable management finger assembly 183
Installing the cable management fingers .... 185
Chassis door ........... 187
Chassis door overview .......... 187
Time and items required.......... 187
Removing a chassis door ......... 187
Installing a chassis door .......... 187
Replacing the Chassis ....... 191
Chassis replacement overview........ 191
Precautions specific to chassis replacement ... 192
Chassis replacement task guide ....... 192
Customer replacement responsibilities .... 193
Chassis fault indicators ........ 193
Time and items required........ 194
Preparing for replacement ....... 194
Recording critical device and SAN
information ........... 194
Disconnecting from network and fabric 197
Reconnecting system to the network and
fabric .............. 198
Downloading the configuration ..... 198
Verifying correct operation of system ... 199
Verifying correct configuration of the fabric 200
IBM service replacement responsibilities ... 201
Disconnecting the cables........ 202
Removing components from the chassis .. 202
Installing the replacement chassis .... 202
Installing components into the chassis ... 203
Synchronizing airflow direction on WWN
cards .............. 204
Removing the battery ........ 205
Appendix A. SAN rack ....... 207
Installing the IBM SAN rack ........ 207
Step 1. Position the rack ......... 207
Step 2. Level the rack.......... 208
Step 3. Attach the stabilizers ....... 209
Step 4. Attach the rack to a concrete floor ... 210
Step 5. Attach the rack to a concrete floor
beneath a raised floor ......... 212
Step 6. Attach the mounting plates ..... 214
Step 7. Attach the front door ....... 214
Step 8. Check the customer's ac power source 215
Step 9. Check the intelligent power distribution
units ............... 216
Installing additional iPDUs ....... 216
Step 10. Connect switch and device cables... 217
Step 11. Power on the rack ........ 217
Service procedures ........... 218
Director power-off procedure ....... 218
Removing and replacing the iPDUs ..... 218
Side-mounted iPDUs ......... 219
Removing the side-mounted iPDU ... 219
Replacing the side-mounted iPDU ... 220
Removing and replacing the front or rear rack
door ............... 220
Removing the rack door........ 220
Replacing the rack door ....... 220
Relocating the rack .......... 221
Parts information ........... 221
Rack door and side panels ....... 222
Earthquake brace .......... 223
Blank fillers ............ 224
Stabilizers ............ 225
Leveling feet ........... 226
Power cables ........... 226
Rack parts list ........... 227
Intelligent power distribution units .... 228
iPDU for director attachment ..... 229
SAN rack specifications ......... 229
Appendix B. Product Specifications 231
Notices .............. 251
Trademarks .............. 252
Homologation statement ......... 252
Electronic emission notices ......... 252
Federal Communications Commission Statement 252
Industry Canada Compliance Statement ... 253
Australia and New Zealand Class A Statement 253
European Union Electromagnetic Compatibility
Directive .............. 253
Germany Electromagnetic Compatibility
Directive .............. 253
People's Republic of China Class A Statement 255
Taiwan Class A Statement ........ 255
Taiwan Contact Information ....... 255
Japan Voluntary Control Council for Interference
Class A Statement ........... 255
Japan Electronics and Information Technology
Industries Association Statement ...... 256
Korean Communications Commission Class A
Statement ............. 256
Russia Electromagnetic Interference Class A
Statement ............. 257
Index ............... 259
Contents v
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vi SAN256B-6 Installation, Service, and User Guide

Figures
1. Port side of the SAN256B-6 Director (sample
configuration) ............ 3
2. Nonport side of the SAN256B-6 (sample
configuration) ............ 5
3. Airflow Diversion and Port-Side Exhaust Kit
assembly for 18-24 in. (45.72 to 60.96 cm) racks 20
4. Clip and retainer nut locations on rack rails 21
5. Installing saddle to equipment rack .... 22
6. Shelf installed in rack ......... 23
7. Installing air duct into side slot on shelf 24
8. Securing top rail in rack ........ 25
9. IBM device with 18-24 in. (45.72 to 60.96 cm)
kit installed in rack .......... 26
10. Airflow Diversion and Port-Side Exhaust Kit
assembly for 27-31 in. (68.58 to 78.74 cm) racks 27
11. Clip and retainer nut locations on rack rails 29
12. Shelf installed in rack ......... 30
13. Installing air duct into side slot on shelf 30
14. Securing top rail in rack ........ 31
15. Device and 27-31 in. (68.58 to 78.74 cm) kit
installed in rack ........... 32
16. Rack kit parts ............ 34
17. Saddle installed in a rack ........ 35
18. Using clip nuts and retainer nuts to secure
screws to rack rails .......... 36
19. Telco mid-mount brackets installation .... 36
20. Sliding the device into the mid-mount saddle 37
21. Device installed in mid-mount saddle.... 38
22. Rack kit parts ............ 39
23. Device rails installed in equipment rack 40
24. Using clip nuts and retainer nuts to secure
screws to rack rails .......... 41
25. Installing a chassis into the equipment rack 41
26. Chassis installed in equipment rack .... 42
27. Removing protective cover from SAN256B-6 43
28. QSFP to QSFP standard cables ...... 67
29. QSFP to SFP breakout/cables ...... 67
30. FC SFP+ transceiver.......... 68
31. Optical transceiver with bail open ..... 68
32. QSFP cable and transceiver with bail open 69
33. QSFP transceiver with separate cable .... 69
34. 2 km LWL QSFP transceiver with integrated
cable ............... 70
35. Female-to-female patch cable for QFSP
connections ............ 71
36. QSFP28 transceiver .......... 71
37. Optical transceiver extraction tool ..... 72
38. Installing an SFP+ transceiver with pull tab
into blade port ........... 74
39. Installing an SFP+ transceiver with bail latch
into blade port ........... 74
40. Replacing a SFP+ optical transceiver with pull
tab into blade port .......... 75
41. Installing an SFP+ transceiver with bail latch
into blade port ........... 76
42. Installing a QSFP transceiver into blade port 77
43. Installing a QSFP optical transceiver into blade
port ............... 78
44. FC32-48 port blade LEDs ........ 81
45. FC32-64 port blade LEDs ........ 84
46. SX6 Extension blade LEDs ....... 86
47. Control processor blade (CPX6) ...... 89
48. CR32-4 core routing blade LEDs ..... 91
49. WWN card LEDs on bezel ....... 92
50. 2870 W AC Power supply LED ...... 93
51. Fan assembly LEDs .......... 95
52. FC32-48 blade port numbering ...... 114
53. FC32-64 blade port numbering ...... 115
54. SX6 Extension blade port numbering 118
55. Removing and replacing port or extension
blade .............. 121
56. CR32-4 core routing blade port numbering 125
57. ICL cable connections for SAN256B-6 and
SAN512B-6 Director (sample configuration) . 128
58. IBM SAN Director core-edge ICL topology 129
59. Removing and installing a core routing blade 132
60. CPX6 blade port identification ...... 136
61. Removal and replacement of the control
processor blade (CPX6) ........ 141
62. Removal and replacement of the control
processor blade (CPX6) ........ 146
63. WWN card location and numbering .... 150
64. Removing and installing WWN cards 158
65. AC power supply assembly....... 161
66. Airflow labels ........... 162
67. Power supply assembly numbering .... 163
68. HVAC/HVDC power supply assembly 164
69. Removing and installing power supply
assembly ............. 168
70. Fan assembly ........... 171
71. Airflow labels ........... 172
72. Fan assembly numbering ....... 173
73. Removing and installing a fan assembly 176
74. Removing and installing the blade filler panel 180
75. Removing and installing the blade filler panel 181
76. Cable management fingers installed on rack
uprights ............. 184
77. Cable management finger assemblies 185
78. Removal and replacement of the chassis door 187
79. Removing protective cover from SAN256B-6
chassis .............. 188
80. Installing door ball studs into SAN256B-6
chassis .............. 188
81. Installing chassis door ........ 189
82. Location of battery holder ....... 205
83. Caster wheel............ 208
84. Adjusting the leveling feet ....... 209
85. Stabilizers............. 209
86. Attaching the rack to a concrete floor 210
87. Leveling the rack .......... 211
88. Attaching the rack to a raised floor .... 212
89. Leveling the rack .......... 213
© Copyright IBM Corp. 2018 vii
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90. Attaching the mounting plate ...... 214
91. Attaching the front door ........ 214
92. Power cord cabling (rack side view) .... 217
93. SAN rack with iPDU locations ...... 219
94. Removing the rack door ........ 220
95. iPDU locations ........... 228
96. iPDU (PN 00FW787) for director attachment 229
viii SAN256B-6 Installation, Service, and User Guide

Tables
1. Brocade and IBM product and model number
matrix .............. xxv
2. OS-dependent FRUs......... xxvii
3. Rack mount kits .......... xxviii
4. Facility requirements .......... 9
5. Installation tasks, time, and items required 11
6. Installation prerequisites ........ 12
7. Installation and basic system configuration 12
8. Hardware for Airflow Diversion and Port-Side
Exhaust Kit for 18-24 in. (45.72 to 60.96 cm)
racks ............... 19
9. Torque requirements for mounting screws 21
10. Hardware for Airflow Diversion and Port Side
Exhaust Kit for 27-31 in. (68.58 to 78.74 cm)
racks ............... 26
11. Torque requirements for mounting screws 28
12. Configuration and verification tasks .... 45
13. HVAC/HVDC power cable ....... 52
14. Example: tsTimeZone command parameter
selection for the US time zones ...... 58
15. Supported transceivers and cables ..... 65
16. Port blade LED descriptions ....... 82
17. Port blade LED descriptions ....... 84
18. Extension blade LED descriptions ..... 86
19. CP blade LED descriptions ....... 89
20. Core routing blade LED descriptions .... 91
21. WWN card LED descriptions ...... 92
22. 2870 W AC Power supply LED descriptions 94
23. 2870 W AC Power supply LED descriptions
(continued)............. 95
24. Fan assembly LED descriptions ...... 95
25. Port groups for configuring trunks .... 114
26. Port groups for configuring trunks .... 116
27. External port to slotShow port mapping for
core blades ............ 126
28. Messages that may indicate WWN card
failure .............. 151
29. RASlog messages from WWN card audit 153
30. HVAC/HVDC power cable wiring .... 165
31. Critical information checklist ...... 195
32. Power cables for side-mount iPDUs .... 227
33. Items supplied with the 14U director chassis
mount kit ............. 227
34. IBM SAN rack specifications ...... 229
© Copyright IBM Corp. 2018 ix
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xSAN256B-6 Installation, Service, and User Guide

Read this first
Summary of changes
This is the first edition of the IBM®Storage Networking SAN256B-6 Installation, Service, and User Guide.
Getting help
For the latest version of your product documentation, visit the IBM Publications Center at
www.ibm.com/shop/publications/order. Search by form number or title.
For more information about IBM Storage Networking products, go to www.ibm.com/systems/storage/
san/.
IBM Redbooks®often provide in depth information about product best practices, configurations, and
more technical information. For redbooks associated with this product, enter search terms on the
following Web site: www.redbook.ibm.com.
For support information for this and other IBM products, see the IBM Support Portal
www.ibm.com/supportportal. Search for the product Machine type or product name.
For Fabric OS Release Notes and access to Fabric OS firmware downloads, go to the IBM Support Portal
www.ibm.com/supportportal. Search for the product Machine type or product name, and then follow
links for Downloads. More detailed instructions are available through the Accessing firmware updates
and OS documentation updates link on the product documentation CD that is shipped with this
product.
You can also contact IBM within the United States at 1-800-IBMSERV (1-800-426-7378). For support
outside the United States, you can find the service number through the IBM contacts directory website at
www.ibm.com/planetwide/.
Visit the IBM contact website www.ibm.com/contact for contact information for your country or region.
For information about storage and networking industry standards, see the Storage Networking Industry
Association (SNIA) website at www.snia.org/.
For details regarding FICON and z Systems support, please refer to the qualification letters published on
IBM ResourceLink at https://www.ibm.com/servers/resourcelink/svc03100.nsf?OpenDatabase
Note: New users may need to register for a free IBMid and request access.
Accessibility features
Accessibility features help users who have a disability, such as restricted mobility or limited vision, to use
information technology products successfully.
Accessibility features
The following list includes the major accessibility features in this product:
vLight emitting diodes (LEDs) that flash at different rates, to represent the same information as the
colors of the LEDs
vIndustry-standard devices for ports and connectors
© Copyright IBM Corp. 2018 xi

vManagement of the product through management applications is available through Web and Graphical
User Interface (GUI) options
Keyboard navigation
This product does not have an attached or integrated keyboard. Any keyboard navigation is provided
through the management software and GUI.
Vendor software
This product includes certain vendor software that is not covered under the IBM license agreement. IBM
makes no representation about the accessibility features of these products. Contact the vendor for the
accessibility information about its products.
Related accessibility information
You can view the publications for this product in Adobe Portable Document Format (PDF) using the
Adobe Acrobat Reader. The PDFs are provided on a product documentation CD-ROM that is packaged
with the product. The CD-ROM also includes an accessible HTML version of this document.
IBM and accessibility
See the IBM Human Ability and Accessibility Center website at www.ibm.com/able/ for more
information about the commitment that IBM has to accessibility.
How to send your comments
Your feedback is important in helping us provide the most accurate and high-quality information. If you
have comments or suggestions for improving this document, send us your comments by email to
[email protected]. Be sure to include the following information:
vExact publication title
vForm number (for example, GC27-2270-00)
vPage numbers to which you are referring
You can also mail your comments to:
International Business Machines Corporation
Information Development
Department GZW
9000 South Rita Road
Tucson, Arizona 85744-0001 U.S.A.
When you send information to IBM, you grant IBM a nonexclusive right to use or distribute the
information in any way it believes appropriate without incurring any obligation to you.
xii SAN256B-6 Installation, Service, and User Guide

Safety and environmental notices
This section contains information about:
v“Safety notices and labels”
v“Rack safety” on page xix
v“Product recycling and disposal” on page xxi
Safety notices and labels
When using this product, observe the danger, caution, and attention notices contained in this guide. The
notices are accompanied by symbols that represent the severity of the safety condition. The danger and
caution notices are listed in numerical order based on their IDs, which are displayed in parentheses, for
example (D004), at the end of each notice. Use this ID to locate the translation of these danger and
caution notices in the Safety Notices publication that is shipped with this product.
The following notices and statements are used in IBM documents. They are listed below in order of
increasing severity of potential hazards. Follow the links for more detailed descriptions and examples of
the danger, caution, and attention notices in the sections that follow.
vNote: These notices provide important tips, guidance, or advice.
v“Attention notices” on page xviii: These notices indicate potential damage to programs, devices, or
data.
v“Cautions”: These statements indicate situations that can be potentially hazardous to you.
v“Danger notices” on page xv: 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.
vIn addition to these notices, “Safety labels” on page xvii may be attached to the product to warn of
potential hazards.
Cautions
A Caution statement alerts you to situations that can be potentially hazardous to you or cause damage to
hardware, firmware, software, or data.
General cautions
CAUTION:
Changes or modifications made to this device that are not expressly approved by the
party responsible for compliance could void the user's authority to operate the equipment.
CAUTION:
Disassembling any part of the power supply and fan assembly voids the warranty and
regulatory certifications. There are no user-serviceable parts inside the power supply and
fan assembly.
CAUTION:
Make sure the airflow around the front, sides, and back of the device is not restricted.
© Copyright IBM Corp. 2018 xiii

CAUTION:
Ensure that the airflow direction of the power supply unit matches that of the installed
fan tray. The power supplies and fan trays are clearly labeled with either a green arrow
with an "E", or an orange arrow with an "I."
CAUTION:
To protect the serial port from damage, keep the cover on the port when not in use.
CAUTION:
Never leave tools inside the chassis.
CAUTION:
Use the screws specified in the procedure. Using longer screws can damage the device.
CAUTION:
To avoid damaging blade and chassis, do not push the blade into a slot or pull the blade
from a slot using the ejector handles.
CAUTION:
Remove the protective cover on the port side of chassis before applying power. This cover
is attached over the air vents. If not removed, the chassis can overheat and will eventually
shut down.
Electrical cautions
CAUTION:
Use a separate branch circuit for each power cord, which provides redundancy in case one
of the circuits fails.
CAUTION:
For the NEBS-compliant installation of a device with AC or DC systems, use a ground
wire of at least 2 AWG. The ground wire should have an agency-approved crimped
connector (provided with the device) attached to one end, with the other end attached to
building ground. The connector must be crimped with the proper tool, allowing it to be
connected to both ground screws on the enclosure. Before crimping the ground wire into
the provided ground lug, ensure that the bare copper wire has been cleaned and
antioxidant is applied to the bare wire. In addition, anti-rotation devices or lock washers
must be used with all screw connections for the grounding wire.
CAUTION:
Before plugging a cable into any port, be sure to discharge the voltage stored on the cable
by touching the electrical contacts to ground surface.
CAUTION:
Static electricity can damage the chassis and other electronic devices. To avoid damage,
keep static-sensitive devices in their static-protective packages until you are ready to
install them.
xiv SAN256B-6 Installation, Service, and User Guide

CAUTION:
If you do not install a module or a power supply in a slot, you must keep the slot filler
panel in place. If you run the chassis with an uncovered slot, the system will overheat.
Cautions related to equipment weight
18-32 kg (39.7-70.5 lbs)
svc00167
CAUTION:
Do not use the port cover tabs to lift the module. They are not designed to support the
weight of the module, which can fall and be damaged.
18-32 kg (39.7-70.5 lbs)
svc00167
CAUTION:
To prevent damage to the chassis and components, never attempt to lift the chassis using
the fan or power supply handles. These handles were not designed to support the weight
of the chassis.
Danger notices
A Danger statement indicates conditions or situations that can be potentially lethal or extremely
hazardous to you. Safety labels are also attached directly to products to warn of these conditions or
situations.
General dangers
DANGER
The procedures in this manual are for qualified service personnel.
DANGER
Be careful not to accidently insert your fingers into the fan tray while removing it
from the chassis. The fan may still be spinning at a high speed.
DANGER
This equipment is suitable for mounting on concrete or other noncombustible surfaces
only.
Dangers related to equipment weight
18-32 kg (39.7-70.5 lbs)
svc00167
DANGER
Use safe lifting practices when moving the product.
Safety and environmental notices xv

18-32 kg (39.7-70.5 lbs)
svc00167
DANGER
Make sure the rack housing the device is adequately secured to prevent it from
becoming unstable or falling over.
18-32 kg (39.7-70.5 lbs)
svc00167
DANGER
Mount the devices you install in a rack as low as possible. Place the heaviest device at
the bottom and progressively place lighter devices above.
18-32 kg (39.7-70.5 lbs)
svc00167
DANGER
A completely empty chassis weighs approximately 24.49 kg (54 lb) and requires a
hydraulic or assisted lift to install it.
18-32 kg (39.7-70.5 lbs)
svc00167
DANGER
A fully populated chassis weighs approximately 68.95 kg (152.0 lbs) and requires a
hydraulic or assisted lift to install it.
18-32 kg (39.7-70.5 lbs)
svc00167
DANGER
If a lift tool is not available, the director chassis must be depopulated completely
before installing it into the rack. Remove the power supplies, fan modules, all of the
blades, the cable management fingers, and the chassis door (if equipped). Install the
empty chassis into the rack following the chassis installation instructions. The weight
of the empty chassis is 54 lbs (24.5 kg) and must be lifted by minimum 2 people. After
securing the chassis to the rack, reinstall the power supplies, fan modules, and the
blades and proceed with the installation.
Electrical dangers
DANGER
Make sure that the power source circuits are properly grounded, then use the power
cord supplied with the device to connect it to the power source.
DANGER
Before beginning the installation, see the precautions in “Power precautions.”
xvi SAN256B-6 Installation, Service, and User Guide

DANGER
For safety reasons, the ESD wrist strap should contain a series 1 megaohm resistor.
DANGER
If the installation requires a different power cord than the one supplied with the
device, make sure you use a power cord displaying the mark of the safety agency that
defines the regulations for power cords in your country. The mark is your assurance
that the power cord can be used safely with the device.
DANGER
Disconnect the power cord from all power sources to completely remove power from
the device.
Laser dangers
DANGER
All fiber-optic interfaces use Class 1 lasers.
DANGER
Use only optical transceivers that are qualified by IBM and comply with the FDA
Class 1 radiation performance requirements defined in 21 CFR Subchapter I, and with
IEC 825 and EN60825. Optical products that do not comply with these standards might
emit light that is hazardous to the eyes.
DANGER
Laser Radiation. Do Not View Directly with Optical Instruments. Class 1M Laser
Products.
Safety labels
As an added precaution, safety labels are often installed directly on products or product components to
warn of potential hazards. These can be either danger or caution notices, depending upon the level of the
hazard.
The actual product safety labels may differ from these sample safety labels:
Safety and environmental notices xvii

DANGER
Hazardous voltage, current, or energy levels are present inside any component that
has this label attached. Do not open any cover or barrier that contains this label.
(L001)
DANGER
Rack-mounted devices are not to be used as a shelf or work space. (L002)
DANGER
Multiple power cords. The product might be equipped with multiple power cords. To
remove all hazardous voltages, disconnect all power cords. (L003)
DANGER
Hazardous voltage present. Voltages present constitute a shock hazard, which can
cause severe injury or death. (L004)
CAUTION:
Hazardous moving parts nearby. (L008)
Attention notices
An attention notice indicates the possibility of damage to a program, device, or system, or to data. An
exclamation point symbol may accompany an attention notice, but is not required. A sample attention
notice follows:
Attention: Do not bend a fibre cable to a radius less than 5 cm (2 in.); you can damage the cable. Tie
wraps are not recommended for optical cables because they can be easily overtightened, causing damage
to the cable.
xviii SAN256B-6 Installation, Service, and User Guide

ESD precautions
Attention: Many of the field replaceable units (FRUs) are sensitive to electrostatic discharge (ESD), and
can potentially be damaged by improper handling. When working with any FRU, use correct ESD
precautions:
vAttach ground to the indicated area on the chassis
vWear a wrist grounding strap connected to chassis ground (if the switch is plugged in) or a bench
ground.
Note: For safety reasons, the ESD wrist strap should contain a series 1 megaohm resistor.
vStore ESD-sensitive components in antistatic packaging
Rack safety
Rack installation
DANGER
Observe the following precautions when working on or around your IT rack system:
vHeavy equipment—personal injury or equipment damage might result if mishandled.
vAlways lower the leveling pads on the rack cabinet.
vAlways install stabilizer brackets on the rack cabinet.
vTo 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
cabinet.
vRack-mounted devices are not to be used as shelves or work spaces. Do not place objects on top of
rack-mounted devices.
vEach rack cabinet might have more than one power cord. Be sure to disconnect all power cords in the rack
cabinet when directed to disconnect power during servicing.
vConnect 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.
vAn electrical outlet that is not correctly wired could place hazardous voltage on the 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.
(R001 part 1 of 2)
Safety and environmental notices xix

CAUTION:
vDo 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.
vDo 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.
vConsideration 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. To provide the correct power
connection to a rack, refer to the rating labels located on the equipment in the rack to determine the total
power requirement of the supply circuit.
v(For sliding drawers) Do not pull out or install any drawer or feature if the rack stabilizer brackets are not
attached to the rack. Do not pull out more than one drawer at a time. The rack might become unstable if you
pull out more than one drawer at a time.
v(For fixed drawers) This drawer is a fixed drawer and must not be moved for servicing unless specified by the
manufacturer. Attempting to move the drawer partially or completely out of the rack might cause the rack to
become unstable or cause the drawer to fall out of the rack.
(R001 part 2 of 2)
xx SAN256B-6 Installation, Service, and User Guide