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Troubleshooting 87
Troubleshooting
This appendix provides troubleshooting information for Dell™ PowerEdge™ Cluster SE500W
configurations.
Table A-1 describes general cluster problems you may encounter and the probable causes and
solutions for each problem.
Table A-1. General Cluster Troubleshooting
Problem Probable Cause Corrective Action
The RAID drives in the Dell
PowerVault™ 22xS storage
system are not accessible by one
of the cluster nodes, or the
shared storage system is not
functioning properly with the
cluster software.
The SCSI cables are loose or
defective, or the cables
exceed the maximum
allowable length.
Check the cable connections or replace
the cable with a working cable. For more
information on the length of SCSI cables,
see "Cabling Your Cluster Hardware."
A disk resource will not move
over to another node or will not
come online.
The PERC RAID adapters
connected to a single storage
system are not configured
consistently.
Ensure that the RAID configuration is
identical for each channel between the
PERC 3/DC cards connected to a shared
storage system. Ensure that cluster mode
is enabled on both PERC RAID adapters
and that their SCSI IDs are different on
each node.
The PowerVault 22xS is not
running in cluster mode.
Configure the PowerVault 22xS for cluster
mode. For more information, see
"Preparing Your Systems for Clustering."
If the cluster has multiple
PowerVault 22xS storage
systems, the cabling between
the PERC RAID adapter and
the storage systems is wrong.
Ensure that the cables attached to each
channel of the PERC RAID adapter in
each server node are connected to the
correct storage system and that the
channels on an optional second PERC
RAID adapter in each server node are
connected to the correct system.
Attach or replace the SCSI cable between
the cluster node and the shared
storage system.
se500wbk1.book Page 87 Thursday, June 16, 2005 4:19 PM