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 installation
Before installing a WWN card, verify that the installation is necessary. Any of the
following events can indicate that the card requires replacement:
v Status LED on WWN card (beneath the bezel) indicates a problem
v Problems viewing or modifying the data stored on the WWN card (see Table 15).
v Error messages regarding WWN units #1 or #2 (see Table 16).
Note: Power and status LEDs for the blades are not on the WWN card. Those
LEDs can be viewed directly on the blades themselves.
Determining the status of a WWN card
To determine the status of a WWN card, do the following:
1. Check the WWN card status using the commands listed in Table 15. Difficulty
retrieving or modifying this data could indicate a WWN card failure.
Table 15. Commands identifying the WWN card status
Data Related commands
WWN values wwn, chassisShow
Data about the chassis and WWN card chassisShow
Ethernet and Fibre Channel IP address
information for the CP blades
ipAddrShow, ipAddrSet
History log information historyShow, historyLastShow
Name of switch switchName
Name of chassis chassisName
2. Enter the chassisShow command to display information about the WWN card.
WWN units correspond to information specific to the WWN card. An error
message is logged that indicates the status of the WWN unit (see Table 16).
Table 16. WWN card related system log messages
Type of message System message (errshow or errdump)
WWN unit removal was
detected
<timestamp>, [EM-1050], <sequence-number>,, INFO,
<system-name>, FRU WWN # removal detected.
WWN unit insertion was
detected
<timestamp>, [EM-1049], <sequence-number>,, INFO,
<system-name>, FRU WWN # insertion detected.
WWN unit fails to power on <timestamp>, [EM-1004], <sequence-number>,, CRITICAL,
<system-name>, WWN # failed to power on
WWN unit is being faulted <timestamp>, [EM-1034], <sequence-number>,, ERROR,
<system-name>, WWN # set to faulty, rc=<return code>
Removing the WWN bezel and WWN card
Attention: Follow ESD precautions (see “ESD precautions” on page xviii)
whenever handling cards or blades.
1. Open a Telnet session to the SAN384B and log in to the active CP as admin. The
default password is password.
Chapter 5. Removing and installing components 79
