IBM ServeRAID-4 Ultra160 Series User Reference page 176

Problem
After one of the cluster servers has been shut
down normally and the surviving server takes
over the cluster resources, occasionally one
or more of the IBM ServeRAID logical drive
resources will stay in the online-pending state
for several minutes, after moving over to the
surviving server (when viewed with the
Cluster Administrator). After this, the resource
will go to the Failed state and the following
error message will be displayed in the
surviving server system log (as viewed with
the Event Viewer).
For example, the Windows NT Event Log
Message:
Date: ??? Event ID:
Time: ??? Source:
User: N/A Type:
Computer: ??? Category:
Description:
Cluster resource 'IBM ServeRAID Logical
Disk name' failed.
If a previous version of IBM ServeRAID
Cluster Solution has been uninstalled, a
message incorrectly displays prompting you to
perform an upgrade when you attempt to
reinstall the ServeRAID Windows NT Cluster
Solution.
Array identifiers and logical drive numbers
might change during a failover condition.
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IBM User's Reference: ServeRAID
Action
No action is necessary to bring the resource online after the failover.
MSCS will bring this resource online on the surviving server within
about four minutes.
1069
ClusSvc
Error
(4)
You must delete the C3E76E53-F841-11D0-BFA1-08005AB8ED05
registry key. To delete the registry key, do the following:
1. From the Start menu, click Run.
2. Type: REGEDIT and click OK. The Registry Editor window opens.
3. Select HKEY_CLASSES_ROOT\CLSID and delete
C3E76E53-F841-11D0-BFA1-08005AB8ED05.
4. Reinstall the ServeRAID Windows NT Cluster Solution. Refer to
"Chapter 13. Configuring ServeRAID controllers for clustering" on
page 99 for instructions.
By design, the array identifiers and logical drive numbers might
change during a failover condition. Consistency between the merge
group numbers and Windows NT or Windows 2000 permanent
(sticky) drive letters is maintained, while the ordering process during
a failover condition is controlled by the Microsoft Cluster Service
software and the available array identifiers on the surviving server.
™
-4 Ultra160 SCSI Controller