Verifying Necessity Of Installation - IBM SAN768B Installation, Service And User Manual

v If a serial console session is used: serial cable and a workstation computer with

Verifying necessity of installation

Before installing a WWN card, verify that the installation is necessary. Any of the
following events can indicate that the card requires installation:
v Status LEDs on the WWN bezel not reflecting the actual status of the
v Power or Status LEDs on WWN card indicate a problem.
v Problems viewing or modifying the data stored on the WWN card (see Table 18).
v Error messages regarding WWN units #1 or #2 (see Table 19 on page 74).
To determine the status of a WWN card, do the following:
1. Check the LED indicators on the WWN bezel and verify that they reflect the
2. Check the WWN card status using the commands listed in Table 18. Difficulty
3. An error message is logged that indicates the status of the WWN unit (see
a terminal emulator application (such as HyperTerminal for Windows systems or
TIP for Solaris systems)
components
actual status of the components. The WWN bezel covers the WWN cards and
allows its LEDs to shine through. The LEDs on the WWN bezel provide a
consolidated view of the port, CP, and CR blade status, see Table 17.
Table 17. WWN LED patterns
LED
location/purpose Color
Port blade/CP/CR Steady green
blade power
Port blade/CP/CR Steady amber
blade status
No light (LED is off)
Note: If a blade slot has a filler panel installed, the corresponding LEDs on the WWN card
do not light up.
Note: If a status LED on the WWN bezel flashes, the power LED on the WWN bezel also
flashes, for increased visibility.
retrieving or modifying this data could indicate a WWN card failure.
Table 18. Commands identifying the WWN card status
Data
WWN values
Data about the chassis and WWN card
Ethernet and Fibre Channel IP address
information for the CP blades
History log information
Name of switch
Table 19 on page 74). WWN units correspond to information specific to the
WWN card and are displayed by the chassisShow command.
Status
Power is okay.
Card is faulty.
Card is okay.
Related commands
wwn, chassisShow
chassisShow
ipAddrShow, ipAddrSet
historyShow, historyLastShow
switchName
Chapter 5. Removing and installing components
Recommended
action
No action required.
Check card.
No action required.
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