HP EVA Cluster Extension Software Administrator Guide (5697-2445, July 2013)

Remote management of Cluster Extension EVA resources in a cluster
You can use the MMC with Failover Cluster Management to manage clusters and configure Cluster
Extension EVA resources. Note the following when configuring Cluster Extension EVA resources
by using the MMC from a remote management station:
• When you use the MMC to remotely configure Cluster Extension EVA 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 EVA Cluster Extension HP EVA CLX Settings tab. For more information about the
Properties tab, see “Setting Cluster Extension EVA resource properties using the MMC”
(page 35).
• When you install EVA Cluster Extension into a Windows Server 2008/2008 R2/2012
environment, the resource extension DLL is registered by default, that prevents you from
configuring a Cluster Extension EVA resource from a remote management station. If you need
to remotely configure a Cluster Extension EVA resource in a Windows Server 2008/2008
R2/2012-based cluster, unregister clxevamscsex.dll from the cluster node, which allows
you to configure the Cluster Extension EVA resource using the standard Microsoft Properties
tab. Use the command cluster /UNREGADMINEXT:clxevamscsex.dll to unregister
the DLL.
Powershell cmdlets can also be used instead of cluster.exe to unregister
clxevamscsex.dll. For more information, see Microsoft documentation.
CAUTION: Configuring Cluster Extension EVA 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 EVA Cluster Extension HP EVA CLX Settings tab for this purpose.
• If you see the customized EVA Cluster Extension HP EVA CLX Settings tab when you try to
configure a Cluster Extension EVA resource from a remote management station using the
MMC, you must unregister clxevamscsex.dll from the cluster node. Use the command
cluster /UNREGADMINEXT:clxevamscsex.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 R2/2012 cluster nodes.
Powershell cmdlets can also be used instead of cluster.exe to unregister
clxevamscsex.dll. For more information, see Microsoft documentation.
• When you configure Cluster Extension EVA resource properties from a remote management
station through the MMC, which uses the standard Microsoft Properties tab, the properties
that you enter are not validated. Ensure that you enter the correct property values and verify
them against the HP EVA Cluster Extension documentation.
• On Windows Server 2012 Failover Cluster, you cannot use the MMC to remotely configure
the CLX resource on which the CSV disk is dependent. On a Windows 2012 Server Core
system, you must use the EVA Resource Configuration Tool (ClxevaResConfig.exe) to
configure the CLX resource for the CSV disk. On a non-server core Windows Server 2012
system, you can use the CLX resource configuration utility integrated with the CSV cluster
resource in the Failover Cluster, or use the EVA Resource Configuration Tool
(ClxevaResConfig.exe) to configure the CLX resource for the CSV disk.
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
MSCS documentation for information about how to stop a cluster service.
44 Configuring HP EVA Cluster Extension