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Best Practices and Advanced Features for VMware High Availability

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This article provides best practices and advanced features for a VMware High Availability (HA) environment.

Solution

Each new version of VirtualCenter Server provides new features that you can configure to change how VMware HA functions. You can configure the features using VMware Infrastructure (VI) Client. The following is a list of features available in each version of VirtualCenter Server.

VirtualCenter 2.0.0+:

Setting the preferred failover host
Changing the default isolation response address

VirtualCenter 2.0.2+:

Changing the default timeout for failure and isolation detection
Setting multiple isolation response addresses

VirtualCenter 2.5.0+:

Changing the default isolation response settings at the cluster level
Adjusting the default slot size used for HA admission control
Individual virtual machine failure monitoring (Experimental)

For more details on the best practices and when to consider configuring the new features, refer to the attached document VMware HA: Overview & Technical Best Practices. The Appendix in this document provides instructions for configuring the features.

vCenter Server 4.0.x:

Best Practices for VMware HA Clusters information is provided in the Availability Guide, which can be downloaded from the VMware vSphere Documentation page.

Attachments

1002080_HA_Best_Practices.pdf

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KB Article: 1002080
Updated: Sep 14, 2009

Products:
VMware VirtualCenter
Product Versions:
VMware VirtualCenter 2.0.x
VMware VirtualCenter 2.5.x
VMware vCenter Server 4.0.x

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