HP 3PAR Cluster Extension Software Administrator Guide (5697-1429, March 2012)

Remote management of HP 3PAR Cluster Extension resources in a cluster
You can use the MMC with Failover Cluster Management to manage clusters and configure HP
3PAR Cluster Extension resources. Note the following when configuring HP 3PAR Cluster Extension
resources by using the MMC from a remote management station:
• When you use the MMC to remotely configure HP 3PAR Cluster Extension resource properties
in a Server Core or Hyper-V Server cluster node, the Failover Cluster Management GUI on
the remote management station displays the standard Microsoft Properties tab instead of the
customized HP 3PAR Cluster Extension Parameters tab. For more information about the
Properties tab, see “Setting HP 3PAR Cluster Extension resource properties using the MMC ”
(page 35).
• When you install HP 3PAR Cluster Extension into a Windows Server 2008/2008 R2
environment, the resource extension DLL is registered by default, which prevents you from
configuring a HP 3PAR Cluster Extension resource from a remote management station. If you
need to remotely configure a HP 3PAR Cluster Extension resource in a Windows Server
2008/2008 R2-based cluster, unregister clx3PARmscsEx.dll from the cluster node, which
allows you to configure the HP 3PAR Cluster Extension resource using the standard Microsoft
Properties tab. Use the command cluster /UNREGADMINEXT:Clx3PARmscsEx.dll to
unregister the DLL.
CAUTION: Configuring HP 3PAR Cluster Extension resources using the MMC from a remote
management station is supported using only the standard Microsoft Properties tab. Do not try
to use the customized HP 3PAR Cluster Extension Parameters tab for this purpose.
• If you see the customized HP 3PAR Cluster Extension Parameters tab when you try to configure
HP 3PAR Cluster Extension resource from a remote management station using the MMC, you
must unregister clx3PARmscsEx.dll from the cluster node. Use the command cluster/
UNREGADMINEXT:clx3PARmscsEx.dll to unregister the DLL. Unregistering the DLL allows
you to configure the resource using the standard Microsoft Properties tab. This situation might
occur if you have a cluster with both Server Core or Hyper-V Server and Windows Server
2008/2008 R2 cluster nodes.
• When you configure HP 3PAR Cluster Extension resource properties from a remote management
station through the MMC, which uses the standard Microsoft Properties tab, the properties
you enter are not validated, so you must enter the property values accurately, and verify them
against the HP 3PAR Cluster Extension documentation.
System resources
Monitor the system resources on a regular basis as part of Windows administration. If any system
resource usage by the cluster service is reaching maximum levels, stop and then restart the cluster
service. This action automatically fails over the resources and resets system resources. See the
Windows cluster documentation for information about how to stop a cluster service.
An alternate method is to manually move all resources to another node in the cluster before stopping
the cluster service. After all resources are successfully moved to another node, stop and then restart
the cluster service; then, manually move back all resources.
Logs
If the HP 3PAR Cluster Extension log files need to be cleared and reset (for example, to reduce
disk space usage), you can delete the files. HP 3PAR Cluster Extension automatically creates new
log files.
TIP: Archive the log files before deleting them.
Remote management of HP 3PAR Cluster Extension resources in a cluster 43