HP XP Cluster Extension Software Administrator Guide

Cluster Extension resource cannot decide which copy of the data is the most current copy. In those
cases, a storage or cluster administrator must investigate what happened to the environment.
In any case, restarting a failed resource group without investigating the problem is not
recommended. A failed XP Cluster Extension resource indicates the need to check the status of the
disk pair on each copy and decide whether it is safe to continue or not.
“Incompatible disk pair state ” (page 67) shows examples of an incompatible disk pair state shown
in the clxmscs.log file. The same messages can be found in the MSFC cluster log file if the
XP Cluster Extension LogLevel object is set to INFO.
TIP: Use a UCF.cfg file to set the LogLevel object.
Figure 7 Incompatible disk pair state
Using the Domain user account (Windows Server 2008/2008 R2/2012 only)
When using the Domain user account to manage the cluster, modifying HORCM files might not be
possible, and XP Cluster Extension tools might not run as expected. If you experience any of these
issues, turn off UAC.
To turn off UAC, select Control panel→User Accounts, and click Turn User Account Control on or
off. Clear the User Account Control (UAC) to help protect your computer check box. This might
resolve the issue and allow you to use the XP Cluster Extension tools with the Domain user account.
MSFC-specific error handling 67