IBM TotalStorage SAN256N Director 2045-N16 Product manual

IBM TotalStorage SAN256N Director
2045-N16 Installation and Maintenance
Guide
GC26-7714-00
Read Before Using
This product contains software that is licensed under written license agreements. Your use of such software is subject to
the license agreements under which they are provided.


IBM TotalStorage SAN256N Director
2045-N16 Installation and Maintenance
Guide
GC26-7714-00


Note:
Before using this information and the product it supports, read the information in the Notices section.
First Edition (November 2004)
The following paragraph does not apply to any country (or region) where such provisions are inconsistent with local
law.
INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION “AS IS” WITHOUT
WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR APARTICULAR PURPOSE. Some states (or regions) do
not allow disclaimer of express or implied warranties in certain transactions; therefore, this statement may not apply
to you.
Order publications through your IBM
® representative or the IBM branch office serving your locality.
©Copyright International Business Machines Corporation 2004. All rights reserved.
US Government Users Restricted Rights –Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

© Copyright IBM Corp. 2004 iii
Contents
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . .iii
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix
Safety Notices . . . . . . . . . . . . . . . . . . . . . . . .xi
Danger Notice Definition . . . . . . . . . . . . . . . . . . . . . . xi
Caution Notice Definition . . . . . . . . . . . . . . . . . . . . . . xi
Attention Notice Definition. . . . . . . . . . . . . . . . . . . . . . xi
Who Should Use this Information . . . . . . . . . . . . . . . . . . . xi
Translations of safety notices . . . . . . . . . . . . . . . . . . . . . . xv
About this document . . . . . . . . . . . . . . . . . . . . . xvii
IBM TotalStorage SAN256N Director 2045-N16 . . . . . . . . . . . . . . xvii
Web sites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
Getting software updates. . . . . . . . . . . . . . . . . . . . . . . xviii
Getting help. . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Online . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Telephone . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
How to send your comments . . . . . . . . . . . . . . . . . . . . . xviii
Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . 1
Introducing the IBM TotalStorage SAN256N director 2045-N16 . . . . . . . . . 1
IBM TotalStorage SAN n-type Director Series Site Planning Guide (GC26-7715) . . 1
General installation information . . . . . . . . . . . . . . . . . . . . . 2
Supplemental information for installation . . . . . . . . . . . . . . . . 2
Site survey check list. . . . . . . . . . . . . . . . . . . . . . . . 2
Electrostatic Discharge (ESD) precautions . . . . . . . . . . . . . . . 2
ESD wrist strap connections . . . . . . . . . . . . . . . . . . . . . 4
ESD Precautionary Check List . . . . . . . . . . . . . . . . . . . . 4
Chapter 2. SAN256N director components . . . . . . . . . . . . . 7
SAN256N director components . . . . . . . . . . . . . . . . . . . . . 7
Enterprise Manager. . . . . . . . . . . . . . . . . . . . . . . . . . 22
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Fabric/switch interoperability . . . . . . . . . . . . . . . . . . . . . 22
System requirements . . . . . . . . . . . . . . . . . . . . . . . 23
Chapter 3. Installation . . . . . . . . . . . . . . . . . . . . 25
Moving and unpacking the equipment . . . . . . . . . . . . . . . . . . . 25
North American shipments . . . . . . . . . . . . . . . . . . . . . 25
International shipments. . . . . . . . . . . . . . . . . . . . . . . 26
Unpacking the SANC40 cabinet . . . . . . . . . . . . . . . . . . . 27
Unpacking the SANC40 cabinet . . . . . . . . . . . . . . . . . . . 29
Chassis installation . . . . . . . . . . . . . . . . . . . . . . . . . . 33

SAN256N Director 2045-N16
iv
Installation procedures . . . . . . . . . . . . . . . . . . . . . . 33
Lifting device requirements . . . . . . . . . . . . . . . . . . . . . 34
Using the lift tool and the 24-inch load plate . . . . . . . . . . . . . . 34
Cabinet installation . . . . . . . . . . . . . . . . . . . . . . . . . 39
Cabinet installation considerations . . . . . . . . . . . . . . . . . . 39
Installation procedures . . . . . . . . . . . . . . . . . . . . . . 39
Applying AC power. . . . . . . . . . . . . . . . . . . . . . . . . . 41
Supplying AC power to the SAN256N director. . . . . . . . . . . . . . 42
Powering on the SAN256N director . . . . . . . . . . . . . . . . . . 42
SAN256N director system errors . . . . . . . . . . . . . . . . . . . 44
Performing an AC power redundancy check . . . . . . . . . . . . . . 44
Installing the Enterprise Manager workstation PC and external modem . . . . . 44
Power on the Enterprise Manager workstation PC . . . . . . . . . . . . 45
External modem installation. . . . . . . . . . . . . . . . . . . . . 45
MultiTech Systems MultiModem MT5634ZBA - global external modem (North
American/International Usage) . . . . . . . . . . . . . . . . . . . 45
MultiTech Systems MultiModem MT5600BA modem (North American/International
usage) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Installing Enterprise Manager . . . . . . . . . . . . . . . . . . . . . 48
Installing and setting up Enterprise Manager 9.x on an existing FC/9000 platform 49
Enabling license features. . . . . . . . . . . . . . . . . . . . . . 51
Entering director IP addresses via the Enterprise Manager for fabric discovery . 52
Editing IP Addresses via the Enterprise Manager for fabric discovery. . . . . 52
Establishing Ethernet connections. . . . . . . . . . . . . . . . . . . . 52
Entering, editing, or changing IP addresses . . . . . . . . . . . . . . 52
Installing the network hub . . . . . . . . . . . . . . . . . . . . . 54
Verify Ethernet connectivity . . . . . . . . . . . . . . . . . . . . . 55
Connecting the workstation PC directly to the SAN256N director (No Hub) . . 55
SFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Small Form Factor Pluggable (SFP) Transceivers . . . . . . . . . . . . 56
Installing the SFPs . . . . . . . . . . . . . . . . . . . . . . . . 56
Removing an SFP . . . . . . . . . . . . . . . . . . . . . . . . 56
Verifying TFIO port and module operation . . . . . . . . . . . . . . . . . 56
External Port Link Rate Test procedure . . . . . . . . . . . . . . . . 57
Fiber optic cables . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Handling fiber optic cables . . . . . . . . . . . . . . . . . . . . . 58
Cleaning the connectors . . . . . . . . . . . . . . . . . . . . . . 58
Connecting the cable assembly connector . . . . . . . . . . . . . . . 59
Disconnecting the cable assembly connector . . . . . . . . . . . . . . 59
Port connection general information . . . . . . . . . . . . . . . . . 59
Fiber optic cable connection procedures . . . . . . . . . . . . . . . . 59
Cycling power off and on . . . . . . . . . . . . . . . . . . . . . . . 61
Turning off power at the SAN256N director . . . . . . . . . . . . . . . 61
Turning on power at the SAN256N director . . . . . . . . . . . . . . . 62
Verifying the hardware configuration . . . . . . . . . . . . . . . . . . . 62
Verifying the logical path between server and peripheral devices . . . . . . 62
Verifying peripheral device logon. . . . . . . . . . . . . . . . . . . 62
Verifying name service entry . . . . . . . . . . . . . . . . . . . . 62
Director verifications . . . . . . . . . . . . . . . . . . . . . . . . . 62
Chapter 4. Feature installation and configuration . . . . . . . . . 65

© Copyright IBM Corp. 2004 v
Symantec pcAnywhere . . . . . . . . . . . . . . . . . . . . . . . . 65
Workstation requirements and standards for pcAnywhere. . . . . . . . . . 65
Install pcAnywhere . . . . . . . . . . . . . . . . . . . . . . . . 66
File transfer compression . . . . . . . . . . . . . . . . . . . . . . 66
Configure a dial-up host connection . . . . . . . . . . . . . . . . . . 66
Start a dial-up host session . . . . . . . . . . . . . . . . . . . . . 67
Configure a dial-up remote connection . . . . . . . . . . . . . . . . . 67
Establishing a remote dial-up connection . . . . . . . . . . . . . . . . 68
Configure an Internet host connection . . . . . . . . . . . . . . . . . 68
Start an Internet host session . . . . . . . . . . . . . . . . . . . . 68
Configure a remote Internet connection . . . . . . . . . . . . . . . . 69
Establish a remote Internet connection . . . . . . . . . . . . . . . . . 69
TFTP Turbo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Starting and stopping TFTP . . . . . . . . . . . . . . . . . . . . . 70
Call Home feature . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Setting up Call Home . . . . . . . . . . . . . . . . . . . . . . . 71
Alphanumeric Page Home . . . . . . . . . . . . . . . . . . . . . . . 72
Numeric Page Home . . . . . . . . . . . . . . . . . . . . . . . . . 72
E-Mail Page Home . . . . . . . . . . . . . . . . . . . . . . . . . . 72
FTP files to the Enterprise Manager . . . . . . . . . . . . . . . . . . . 73
Chapter 5. Hardware maintenance procedures . . . . . . . . . . 75
Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . 75
Fiber optic maintenance . . . . . . . . . . . . . . . . . . . . . . . . 75
Tools and Test Equipment . . . . . . . . . . . . . . . . . . . . . . . 76
Fibre Channel Director Tools. . . . . . . . . . . . . . . . . . . . . 76
Fiber Optic Tools and Test Equipment . . . . . . . . . . . . . . . . . 76
Field Replaceable Units (FRUs) . . . . . . . . . . . . . . . . . . . . . 76
FRU removal and replacement procedures . . . . . . . . . . . . . . . . . 78
FRU categories . . . . . . . . . . . . . . . . . . . . . . . . . . 79
FRU precautions . . . . . . . . . . . . . . . . . . . . . . . . . 79
Connecting a PC to the TCM Ethernet port . . . . . . . . . . . . . . . 80
TCM board replacement procedures. . . . . . . . . . . . . . . . . . 80
TFIO blade replacement procedures. . . . . . . . . . . . . . . . . . 82
TSW module replacement procedures . . . . . . . . . . . . . . . . . 85
Upper fan assembly replacement procedure. . . . . . . . . . . . . . . 87
Side fan assembly replacement procedure . . . . . . . . . . . . . . . 88
TMF/TFD replacement procedure . . . . . . . . . . . . . . . . . . . 90
Power supply assembly replacement procedure . . . . . . . . . . . . . 91
NEMA L6-20P AC power plug replacement procedure (SANC40N cabinet-North
American) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
International (7K25) AC power plug replacement procedure (SANC40N cabinet-
International). . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Powering off the SAN256N director . . . . . . . . . . . . . . . . . . . . 98
Scheduled power outages . . . . . . . . . . . . . . . . . . . . . . . 99
Unscheduled power outages . . . . . . . . . . . . . . . . . . . . . . 99
Appendix A: Data collection and troubleshooting 101
Collecting data for problem analysis . . . . . . . . . . . . . . . . . . 101
Problem description . . . . . . . . . . . . . . . . . . . . . . . 101
System configuration information . . . . . . . . . . . . . . . . . . 101

SAN256N Director 2045-N16
vi
Debug port capture and debug backup files . . . . . . . . . . . . . .101
SAN256N director general information . . . . . . . . . . . . . . . .102
Troubleshooting TCM boards. . . . . . . . . . . . . . . . . . . . . .102
Normal TCM operation . . . . . . . . . . . . . . . . . . . . . .103
TCM alphanumeric display codes . . . . . . . . . . . . . . . . . . 103
TCM problem indications and solutions . . . . . . . . . . . . . . . .104
TFIO board troubleshooting . . . . . . . . . . . . . . . . . . . . . .105
Normal TFIO operation . . . . . . . . . . . . . . . . . . . . . .105
TFIO problem indications and solutions . . . . . . . . . . . . . . . .106
TSW board troubleshooting . . . . . . . . . . . . . . . . . . . . . .107
Normal TSW operation . . . . . . . . . . . . . . . . . . . . . .108
TSW problem indications and solutions . . . . . . . . . . . . . . . . 108
TFIO Port Blink Codes. . . . . . . . . . . . . . . . . . . . . . .110
TCM/TFIO/TSW PROM boot blink codes. . . . . . . . . . . . . . . .111
TCM/TFIO/TSW board boot blink codes . . . . . . . . . . . . . . . .112
Power system troubleshooting . . . . . . . . . . . . . . . . . . . . .113
Power system problem indications and solutions. . . . . . . . . . . . .113
Cooling system troubleshooting. . . . . . . . . . . . . . . . . . . . .114
Cooling system problem indications and solutions . . . . . . . . . . . .114
Troubleshooting link level errors. . . . . . . . . . . . . . . . . . . . .116
Link-level errors reported on Enterprise Manager . . . . . . . . . . . . 116
Determining the source of link level errors . . . . . . . . . . . . . . .117
Fiber link testing . . . . . . . . . . . . . . . . . . . . . . . . .117
Equipment required . . . . . . . . . . . . . . . . . . . . . . . .117
Measuring the Transmitter (Tx) output power at the TFIO port . . . . . . . 117
Measuring the receiver (Rx) input power at the TFIO port . . . . . . . . . 119
SAN256N director system traps. . . . . . . . . . . . . . . . . . . . .121
Appendix B: AC power reference . . . . . . . . . . . . . . . 123
AC power cables . . . . . . . . . . . . . . . . . . . . . . . . . .123
Appendix C: HyperTerminal setup . . . . . . . . . . . . . . . 125
Setting up HyperTerminal . . . . . . . . . . . . . . . . . . . . . . . 125
Selecting HyperTerminal . . . . . . . . . . . . . . . . . . . . . . 125
Configure an Ethernet connection . . . . . . . . . . . . . . . . . .125
Connecting to the TCM debug port . . . . . . . . . . . . . . . . . .125
Maintain a copy of HyperTerminal actions . . . . . . . . . . . . . . .126
Appendix D: Troubleshooting the SAN256N workstation . . . . . 127
Restoring the Windows operating system . . . . . . . . . . . . . . .127
Dr. Watson error. . . . . . . . . . . . . . . . . . . . . . . . . . .128
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

© Copyright IBM Corp. 2004 vii
Figures
1. SANC40 cabinet Fibre Channel director, front and rear view . . . . . . . . . 1
2. Example of the ESD label . . . . . . . . . . . . . . . . . . . . . . 3
3. ESD wrist strap connections . . . . . . . . . . . . . . . . . . . . . 4
4. SANC40N cabinet; basic components . . . . . . . . . . . . . . . . . 7
5. SANC40N cabinet; front view . . . . . . . . . . . . . . . . . . . . 8
6. SANC40N cabinet; rear view . . . . . . . . . . . . . . . . . . . . . 9
7. TCM control module . . . . . . . . . . . . . . . . . . . . . . . . 10
8. TFIO blade . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
9. TSW switch module . . . . . . . . . . . . . . . . . . . . . . . . 14
10. TMF/TFD module . . . . . . . . . . . . . . . . . . . . . . . . . 15
11. SAN256N director midplane . . . . . . . . . . . . . . . . . . . . 16
12. Power supply assembly . . . . . . . . . . . . . . . . . . . . . . 17
13. Upper fan assembly . . . . . . . . . . . . . . . . . . . . . . . . 18
14. Side fan assembly . . . . . . . . . . . . . . . . . . . . . . . . 19
15. TFIO air baffle . . . . . . . . . . . . . . . . . . . . . . . . . . 20
16. SANC40N cabinet; front view . . . . . . . . . . . . . . . . . . . . 21
17. SANC40N cabinet; rear view . . . . . . . . . . . . . . . . . . . . 22
18. SAN256N director shipping box . . . . . . . . . . . . . . . . . . . 27
19. Pink ESD shipping material on SANC40 cabinet . . . . . . . . . . . . . 28
20. Logo plate tabs . . . . . . . . . . . . . . . . . . . . . . . . . 29
21. Logo plate tabs, 2.5 holes . . . . . . . . . . . . . . . . . . . . . 29
22. SANC40 cabinet with crate ramp lowered . . . . . . . . . . . . . . . 30
23. SANC40 cabinet with plastic strip . . . . . . . . . . . . . . . . . . 31
24. Floor tile layout for the SAN256N director . . . . . . . . . . . . . . . 32
25. Mounting brackets . . . . . . . . . . . . . . . . . . . . . . . . 36
26. Chassis support brackets (left), sliding support brackets (right) . . . . . . . 37
27. Chassis vibration bracket . . . . . . . . . . . . . . . . . . . . . . 37
28. AC power switch . . . . . . . . . . . . . . . . . . . . . . . . . 43
29. External modem connections . . . . . . . . . . . . . . . . . . . . 46
30. SFP LC-type transceivers . . . . . . . . . . . . . . . . . . . . . 56
31. Fiber optic cable diagrams . . . . . . . . . . . . . . . . . . . . . 57
32. Fiber optic cable assignments . . . . . . . . . . . . . . . . . . . . 60
33. SAN256N director front chassis FRU locations . . . . . . . . . . . . . 77
34. SAN256N director rear chassis FRU locations . . . . . . . . . . . . . 78
35. TCM board replacement . . . . . . . . . . . . . . . . . . . . . . 81
36. TFIO blade; replacing . . . . . . . . . . . . . . . . . . . . . . . 83
37. TSW Module; replacing . . . . . . . . . . . . . . . . . . . . . . 85
38. Side fan assembly removal . . . . . . . . . . . . . . . . . . . . . 89
39. Side fan assembly replacement . . . . . . . . . . . . . . . . . . . 90
40. TMF/TFD module captive screws . . . . . . . . . . . . . . . . . . 91
41. NEMA L6-20P AC power plug . . . . . . . . . . . . . . . . . . . . 95
42. 7K25 International AC power plug . . . . . . . . . . . . . . . . . . 98
43. TSW Board LED Locations . . . . . . . . . . . . . . . . . . . . 108
44. Transmitter output power level test setup . . . . . . . . . . . . . . 119
45. Receiver Input Power Level Test Setup . . . . . . . . . . . . . . . 120
46. North America and International AC power cables . . . . . . . . . . . 123

SAN256N Director 2045-N16
viii

© Copyright IBM Corp. 2004 ix
Tables
1. TCM problem indications, solution 1 . . . . . . . . . . . . . . . . . 104
2. TCM problem indications, solution 2 . . . . . . . . . . . . . . . . . 105
3. TCM problem indications, solution 3 . . . . . . . . . . . . . . . . . 105
4. TCM problem indications, solution 4 . . . . . . . . . . . . . . . . . 105
5. TFIO problem indications, solution 1 . . . . . . . . . . . . . . . . . 106
6. TFIO problem indications, solution 2 . . . . . . . . . . . . . . . . . 106
7. TFIO problem indications, solution 3 . . . . . . . . . . . . . . . . . 107
8. TSW problem indications, solution 1 . . . . . . . . . . . . . . . . . 108
9. TSW problem indications, solution 2 . . . . . . . . . . . . . . . . . 109
10. Power system problem indications, solution 1 . . . . . . . . . . . . . 113
11. Power system problem indications, solution 2 . . . . . . . . . . . . . 114
12. Power system problem indications, solution 3 . . . . . . . . . . . . . 114
13. Cooling system problem indications, solution 1 . . . . . . . . . . . . 115
14. Cooling system problem indications, solution 2 . . . . . . . . . . . . 115
15. Power meter levels . . . . . . . . . . . . . . . . . . . . . . . 118
16. Fiber power levels . . . . . . . . . . . . . . . . . . . . . . . 120
17. SAN256N director system traps . . . . . . . . . . . . . . . . . . 121
18. AC Power Cable Assembly Part Numbers for SAN256N directors . . . . . 123

SAN256N Director 2045-N16
x

© Copyright IBM Corp. 2004 xi
Safety Notices
This section contains safety notices for the SAN256N director documentation. The
safety notices include danger, caution, and warning notices.
Danger Notice Definition
A special note in the text that calls attention to a situation that is potentially lethal or
extremely hazardous to people.
Caution Notice Definition
A special note in the text that calls attention to a situation that is potentially hazardous to
people because of some existing condition, or to a potentially dangerous situation that
might develop because of some unsafe practice.
Attention Notice Definition
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.
Who Should Use this Information
Anyone who plans, installs, operates, or services the system should be familiar with and
understand the safety notices contained herein. Read the related safety information
before beginning work.
Each safety notice contains a reference number. You can use this reference number to
check the safety notice in each language.
The safety notices are presented in the following languages:
English:
Arabic:
Brazillian Portuguese:
Chinese (traditional):
Danish:
French/Canadian French:
German:
Hebrew:
Italian:
Korean:
Polish:
Spanish:
Swedish:

SAN256N Director 2045-N16
xii
DANGER
Electrical voltage and current from power, telephone, and communication cables are
hazardous.
To avoid a shock hazard:
• Do not connect or disconnect any cables or perform installation, maintenance, or
reconfiguration of this product during an electrical storm.
• 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.
• Connect any equipment that will be attached to this product to properly wired outlets.
• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural
damage.
• 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.
• Connect and disconnect cables as described below when installing, moving, or
opening covers on this product or attached devices.
To Disconnect:
• Turn everything OFF (unless instructed otherwise).
• Remove power cords from the outlet.
• Remove signal cables from connectors.
• Remove all cables from devices.
To Connect:
1. Turn everything OFF (unless instructed otherwise).
2. Attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlet.
5. Turn device ON.
(D005)

xiii
CAUTION:
Energy hazard present. Shorting may result in system outage and possible physical injury.
Remove all metallic jewelry before servicing. (C001)
CAUTION:
Only trained service personnel may replace this battery. The battery contains lithium. To
avoid possible explosion, do not burn or charge the battery.
Do Not:
• Throw or immerse into water
• Heat to more than 100°C (212°F)
• Repair or disassemble
Exchange only with the IBM-approved part. Recycle or discard the battery as instructed by
local regulations. (C002)
CAUTION:
The system contains circuit cards and/or assemblies that contain lead solder. To avoid the
release of lead (Pb) into the environment, do not burn. Discard the circuit card as instructed
by local regulations. (C014)

SAN256N Director 2045-N16
xiv
CAUTION:
This assembly contains mechanical moving parts. Use care when servicing this
assembly. (C025)
CAUTION:
This product may contain one or more of the following: CD-ROM, DVD-ROM, DVD-
RAM, or laser module, which are Class 1 laser products. Please note the following:
• Do not remove the covers. Removing the covers of the laser product could result in
exposure to hazardous laser radiation. There are no serviceable parts inside the
device.
• Use of the controls or adjustments or performance of procedures other than those
specified herein might result in hazardous radiation exposure.
(C026)
CAUTION:
Servicing of this product or unit is to be performed by trained service personnel only.
(C032)
CAUTION:
The emergency power disconnect is provided by the equipment’s inlet connectors. All
area personnel must be briefed on this method of disconnecting power. These
connectors must be accessible to all personnel. (W001)

xv
The following general safety information should be used for all rack-mounted devices:
• Always lower the leveling pads on the rack cabinet.
• Always install stabilizer brackets on the rack cabinet.
• 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 cabinet.
• 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.
• 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.
• An 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.
• 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.
• 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.
• 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. 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.
(R001)
Translations of safety notices
Each of the above notices is followed by an ID in parentheses, for example (D005), which
can be used to locate the translated notice in the IBM TotalStorage Translated Safety
Notices (GC26-7717) document.

SAN256N Director 2045-N16
xvi

© Copyright IBM Corp. 2004 xvi
About this document
This guide provides information on hardware installation and maintenance for the IBM
TotalStorage SAN Switch SAN256N Director 2045-N16 as well as hardware
replacement procedures.
The intended audience for this document is anyone who is responsible for installing,
maintaining, or operating the SAN256N director.
The sections that follow provide information about:
• “IBM TotalStorage SAN256N Director 2045-N16”
• “Web sites”
• “Getting software updates”
• “Getting help”
• “How to send your comments”
IBM TotalStorage SAN256N Director 2045-N16
The following documents contain information related to this product:
• IBM TotalStorage SAN256N Director 2045-N16 Installation and Maintenance Guide
(GC26-7714) - this document
• IBM TotalStorage SAN256N Director 2045-N16 Release Notes (GC26-7716)
• IBM TotalStorage SAN Director 2045 Statement of Limited Warranty (GC26-7718)
• IBM TotalStorage SAN n-type Director Family Enterprise Manager Installation and
Operator Guide (GC26-7720)
• IBM TotalStorage SAN n-type Director Series Site Planning Guide (GC26-7715)
• IBM TotalStorage Translated Safety Notices (GC26-7717)
Web sites
You can find additional information related to the software for this and other switches at
the following Web site:
http://www.ibm.com/servers/storage/support/san
To get specific details about models and firmware that the switch supports, see the
following Web site:
http://www.storage.ibm.com/ibmsan/
For detailed information about the Fibre Channel standards, see the Fibre Channel
Industry Association (FCIA) Web site at:
www.fibrechannel.org/
For a directory of worldwide contact information, including technical support, see the
following Web site:
www.ibm.com/contact/

SAN256N Director 2045-N16
xvi
Getting software updates
Contact IBM for software updates and maintenance releases.
Select the SAN support link at the following Web site:
http://www.storage.ibm.com/ibmsan/index.html
Getting help
Before contacting technical support, check for solutions in this guide or check with the
network administrator.
Online
Contact technical support at the following Web site:
http://www.ibm.com/servers/storage/support/san/index.html
Telephone
Within the United States, call 1-800-IBM-SERV (1-800-426-7378).
Outside the United States, go to the following Web site to find the appropriate service
number:
http://www.ibm.com/planetwide/
How to send your comments
Your feedback is important in helping us provide the most accurate and high-quality
information. If you have comments or suggestions for improving this document, you can
send us comments electronically by using the following addresses:
• Internet: star[email protected]
• IBMLink™ from U.S.A.: STARPUBS at SJEVM5
• IBMLink from Canada: STARPUBS at TORIBM
• IBM Mail Exchange: USIB3VVD at IBMMAIL
You can also mail your comments by using the Reader Comment Form in the back of
this manual or direct your mail 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.