6.5.1
Table Of Contents
- vSphere Availability
- Contents
- About vSphere Availability
- Business Continuity and Minimizing Downtime
- Creating and Using vSphere HA Clusters
- Providing Fault Tolerance for Virtual Machines
- vCenter High Availability
- Plan the vCenter HA Deployment
- Configure the Network
- Configure vCenter HA With the Basic Option
- Configure vCenter HA With the Advanced Option
- Manage the vCenter HA Configuration
- Set Up SNMP Traps
- Set Up Your Environment to Use Custom Certificates
- Manage vCenter HA SSH Keys
- Initiate a vCenter HA Failover
- Edit the vCenter HA Cluster Configuration
- Perform Backup and Restore Operations
- Remove a vCenter HA Configuration
- Reboot All vCenter HA Nodes
- Change the Appliance Environment
- Collecting Support Bundles for a vCenter HA Node
- Troubleshoot Your vCenter HA Environment
- Patching a vCenter High Availability Environment
- Using Microsoft Clustering Service for vCenter Server on Windows High Availability
- Index
Table 2‑4. vSphere HA Advanced Options (Continued)
Option Description
das.reregisterrestartdisabledvms
When vSphere HA is disabled on a specic VM this option
ensures that the VM is registered on another host after a
failure. This allows you to power-on that VM without
needing to re-register it manually.
N When this option is used, vSphere HA does not
power on the VM, but only registers it.
das.respectvmvmantiaffinityrules
Determines if vSphere HA enforces VM-VM anti-anity
rules. The default value is "true" and rules are enforced
even if vSphere DRS is not enabled. In this case, vSphere
HA does not fail over a virtual machine if doing so violates
a rule, but it issues an event reporting there are insucient
resources to perform the failover. This option can also be
set to "false", whereby the rules are not enforced.
See vSphere Resource Management for more information on
anti-anity rules.
N If you change the value of any of the following advanced options, you must disable and then re-
enable vSphere HA before your changes take eect.
n
das.isolationaddress[...]
n
das.usedefaultisolationaddress
n
das.isolationshutdowntimeout
Customize an Individual Virtual Machine
Each virtual machine in a vSphere HA cluster is assigned the cluster default seings for VM Restart Priority,
Host Isolation Response, VM Component Protection, and VM Monitoring. You can specify specic behavior
for each virtual machine by changing these defaults. If the virtual machine leaves the cluster, these seings
are lost.
Procedure
1 In the vSphere Web Client, browse to the vSphere HA cluster.
2 Click the tab.
3 Under Conguration, select VM Overrides and click Add.
4 Use the + buon to select virtual machines to which to apply the overrides.
5 Click OK.
6 (Optional) You can change other seings, such as the Automation level, VM restart priority, Response
for Host Isolation, VMCP seings,VM Monitoring, or VM monitoring sensitivity seings.
N You can view the cluster defaults for these seings by rst expanding Relevant Cluster
and then expanding vSphere HA.
7 Click OK.
The virtual machine’s behavior now diers from the cluster defaults for each seing that you changed.
Chapter 2 Creating and Using vSphere HA Clusters
VMware, Inc. 37