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File system problem, Lan communication problem – HP 9000 V2600 SCA User Manual

Page 166

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Chapter 7

Recovering from failures

System panics

Step 4. If the system does not reboot by itself, reboot the computer by issuing the

reset

command in the console window or

do_reset

command at the

ksh-shell window. For more information about rebooting the system see
“Rebooting the system” on page 146.

If the problem reappears, it might be necessary to have the problem fixed
by Hewlett-Packard service personnel.

File system problem

If the panic message indicates a problem with one of the file systems,
reboot the system and run the file system checker

fsck

to check and

correct the problem. Follow all directions that

fsck

displays. Especially

when the root file system (the one with the / directory) has problems, it is
important to use the

-n

option to the

reboot

command, right after

fsck

completes.

fsck

is normally run automatically at boot time. See

“Rebooting the system” on page 146.

LAN communication problem

Use the following procedure if the panic messages indicate a problem
with LAN communication:

Step 1. Check LAN cable and media access unit (MAU) connections.

Step 2. Ensure that all vampire taps are tightly connected to their respective

cables.

Step 3. Ensure that the LAN is properly terminated. Each end of the LAN cable

must have a 50-ohm terminator attached. Do not connect the system
directly to the end of a LAN cable.

If the problem reappears or if the hardware failure appears to be
associated with a LAN card or an internal component of the V-Class
server, it might be necessary to have the problem fixed by Hewlett-
Packard service personnel.

This manual is related to the following products: