HP StorageWorks EVA Cluster Extension Software Administrator Guide (T3667-96045, April 2010)

In addition, the service or application's FailoverPeriod value must be higher than the resource's
RestartPeriod value and both must be higher than the resource's PendingTimeout value.
Microsoft Cluster Server provides two properties to adjust state change recognition/resolution:
• IsAlive
• LookAlive
The software automatically calls the IsAlive function whenever the cluster service calls the LookAlive
function. Therefore, both functions must be set to the same value.
NOTE:
For Windows Server 2008/2008 R2, the IsAlive and LookAlive properties are replaced by the
Thorough Resource Health Check Interval and Basic Resource Health Check Interval properties.
Bouncing service or application
EVA Cluster Extension will alternate (start and fail) between local nodes if the ApplicationStartup
property has been set to FASTFAILBACK and no remote system is available until the service or
application restart limit has been reached. For more information, see “APPLICATION
objects” on page 77.
Administration
EVA Cluster Extension administration includes remote management of resources and monitoring of
system resources and logs.
Remote management of EVA Cluster Extension resources in a cluster
You can use the MMC with Failover Cluster Management to manage clusters and configure EVA
Cluster Extension resources. Note the following when configuring EVA Cluster Extension resources
by using the MMC from a remote management station:
• When you use the MMC to remotely configure EVA 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 EVA
Cluster Extension Parameters tab. For more information about the Properties tab, see “Setting EVA
Cluster Extension resource properties using the MMC” on page 44.
• When you install EVA Cluster Extension into a Windows Server 2008/2008 R2 environment, the
resource extension DLL is registered by default, which prevents you from configuring an EVA Cluster
Extension resource from a remote management station. If you need to remotely configure an EVA
Cluster Extension resource in a Windows Server 2008/2008 R2-based cluster, unregister
clxevamscsex.dll from the cluster node, which allows you to configure the EVA Cluster Exten-
sion resource using the standard Microsoft Properties tab. Use the command cluster /UNREGAD-
MINEXT:clxevamscsex.dll to unregister the DLL.
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