IBM eserver Cluster 1350, Installation And Service Manual

Page: 95 / 122

Appendix D. Known problems
This chapter describes known Cluster 1350 problems and resolutions. Use this
chapter to troubleshoot hardware errors.
Node
Amber light on node
There is an amber warning light on the node to indicate the log file is either at 75%
or 100% full. To turn off the LED, clear the log.
There is a setting to wrap the log file so the LED never registers if the file is full:
1. Boot using the xSeries 335 Service Processor Firmware diskette.
2. In the Main Menu, select Configuration Settings .
3. In the Configuration Menu, select General Settings .
4. Set the 75% Full and Log Full setting to No .
COM port settings in BIOS
The COM Port settings for the cluster node should be:
COM Port 1/A
2E8
COM Port 2/B
2F8
Move the serial port jumper from port A to port B on cluster nodes.
CSM
Stale NFS mounts
Existing NFS mounted file systems are inaccessible after a CSM installation on a
cluster node.
1. Remount the NFS file systems.
2. If there is an existing /tftpboot partition on cluster nodes, an error is displayed
on the console during CSM installation on the cluster node. Even though an
error is displayed, the CSM installation was still successful
rpower hard shut down
The rpower command performs a hard shut down. To shut down the OS prior to
issuing the rpower command issue the following command:
dsh -a ’/sbin/init 0’
Storage
Driver module ordering
During a standard install on the storage nodes the system will attempt to boot from
disk located in the FAStT storage device connected to the Qlogic Fibre Channel
(FC) Controller instead of the local SCSI drive connected to the internal Adaptec
SCSI controller. Why this happens is as follows:
© Copyright IBM Corp. 2004
79