6.7
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
- How Fault Tolerance Works
- Fault Tolerance Use Cases
- Fault Tolerance Requirements, Limits, and Licensing
- Fault Tolerance Interoperability
- Preparing Your Cluster and Hosts for Fault Tolerance
- Using Fault Tolerance
- Best Practices for Fault Tolerance
- Legacy Fault Tolerance
- Troubleshooting Fault Tolerant Virtual Machines
- Hardware Virtualization Not Enabled
- Compatible Hosts Not Available for Secondary VM
- Secondary VM on Overcommitted Host Degrades Performance of Primary VM
- Increased Network Latency Observed in FT Virtual Machines
- Some Hosts Are Overloaded with FT Virtual Machines
- Losing Access to FT Metadata Datastore
- Turning On vSphere FT for Powered-On VM Fails
- FT Virtual Machines not Placed or Evacuated by vSphere DRS
- Fault Tolerant Virtual Machine Failovers
- 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
2 Respond to Host Isolation
You can set specific responses to host isolation that occurs in your vSphere HA cluster.
3 Configure VMCP Responses
Configure the response that VM Component Protection (VMCP) makes when a datastore
encounters a PDL or APD failure.
4 Enable VM Monitoring
You can turn on VM and Application Monitoring and also set the monitoring sensitivity for your
vSphere HA cluster.
Respond to Host Failure
You can set specific responses to host failures that occur in your vSphere HA cluster.
This page is editable only if you have enabled vSphere HA.
Procedure
1 In the vSphere Client, browse to the vSphere HA cluster.
2 Click the Configure tab.
3 Select vSphere Availability and click Edit.
4 Click Failures and Responses and then expand Host Failure Response.
5 Select from the following configuration options.
Option Description
Failure Response If you select Disabled, this setting turns off host monitoring and VMs are not
restarted when host failures occur. If Restart VMs is selected, VMs are failed
over based on their restart priority when a host fails.
Default VM Restart Priority The restart priority determines the order in which virtual machines are restarted
when the host fails. Higher priority virtual machines are started first. If multiple
hosts fail, all virtual machines are migrated from the first host in order of priority,
then all virtual machines from the second host in order of priority, and so on.
VM Dependency Restart Condition A specific condition must be selected as well as a delay after that condition has
been met, before vSphere HA is allowed to continue to the next VM restart
priority.
6 Click OK.
Your settings for the host failure response take effect.
Respond to Host Isolation
You can set specific responses to host isolation that occurs in your vSphere HA cluster.
This page is editable only if you have enabled vSphere HA.
vSphere Availability
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