IBM SAN768B-2, Руководство пользователя, Страница: 133 / 228

Time and items required
Allow approximately 20 minutes to replace the WWN cards. The following items
are needed to replace the WWN cards:
v
ESD grounding strap
v
#2 Phillips screwdriver (required only for some versions of the WWN card)
v
If a serial console session is used: serial cable and a workstation computer with
a terminal emulator application (such as HyperTerminal for Windows systems or
TIP for UNIX systems)
v Replacement pair of WWN cards
Verifying the need for replacement
Before replacing a WWN card, verify that the replacement is necessary.
Any of the following events can indicate that the card requires replacement:
v
Status LEDs on the WWN bezel not reflecting the actual status of the
components.
v
Power or Status LEDs on WWN card (beneath the bezel) indicate a problem (see
Figure 28 on page 79 and Table 13 on page 78)
v Problems viewing or modifying the data stored on the WWN card.
v
Error messages regarding WWN units #1 or #2 from the chassisShow output
(see Table 12 on page 77).
Preparing for the WWN card replacement
If the WWN cards require replacement, complete these steps.
Attention: Follow ESD precautions (see “ESD precautions” on page xix).
1. Open a Telnet session to the chassis and log in to the active CP as
admin
. The
default password is
password
.
2. Verify you are logged into the active CP. Run the haShow command to
determine the active CP.
3. Run the
supportSave
command on the active CP to capture all settings. These
will be used later to verify that the settings have been correctly programmed.
4.
Contact IBM Support for replacement of both WWN cards. IBM Support will
send two WWN cards from FRU inventory to the nearest Brocade Support
office to be reprogrammed. Brocade Support will require the Supportsave data
captured in the prior step so that the replacement cards can be reprogrammed
before shipping to your site.
Attention: Do not execute the
fruReplace
command. The command is no longer
functional starting with Fabric OS 7.0.0c, but users with earlier versions of the
Fabric OS should also not run the command.
Removing the WWN bezel (logo plate) and WWN cards
Attention: Follow ESD precautions (see “ESD precautions” on page xix). Wear a
wrist grounding strap connected to chassis ground (if the chassis is plugged in) or
a bench ground.
When both the replacement WWN cards have been received, complete these steps
to remove the bezel and faulted WWN cards.
Chapter 5. Removing and installing components
105
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