Removing and installing a WWN bezel and WWN card
Note:
The World Wide Name (WWN) cards contain fully redundant circuits and
normally do not require replacement. Two WWN cards are located beneath
the WWN bezel. The LEDs on the WWN cards are not visible unless the
bezel is removed.
Time and items required
Allow approximately 20 minutes to install a WWN card. The following items are
needed to replace a WWN card:
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)
Verifying necessity of 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
Power or Status LEDs on WWN card (beneath the bezel) indicate a problem
v
Problems viewing or modifying the data stored on the WWN card
v
Error messages regarding WWN units #1 or #2
Removing the WWN bezel and WWN card
Attention:
Follow ESD precautions (see “ESD precautions” on page xxi)
whenever handling cards or blades.
Complete the following steps to remove the WWN bezel and WWN card.
1.
Open a Telnet session to the SAN384B-2 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. If any
problems occur during the replacement, the information will be important for
solving the problem.
4.
Connect yourself to the ESD grounding strap.
5.
Remove the two screws from the WWN bezel . Pull the bezel away from the
chassis and set it aside (see Figure 40 on page 89). The WWN cards and their
status LEDs are visible.
6.
Wait until all the LEDs on the WWN cards turn off.
7.
Use a Phillips screwdriver to unscrew the two screws that secure the WWN
card to the chassis. Hold the card by the edges and pull out to remove it.
8.
Disconnect the WWN cable by depressing the cable connector latch and pulling
the connector from the WWN module.
9.
Set the WWN card on a static-free surface, such as a grounding pad.
88
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