Another lovely Friday starting off with strange issues, when taking a host out of standard maintenance we noticed that HA would not reconfigure, and kept saying The object ‘vim.Datastore:datastore-1131’ has already been deleted or has not been completely created. This was strange because no other hosts had this issue.

I proceeded to follow standard troubleshooting steps, reconfigure HA…same issue….disable HA for entire cluster and …

If you are configuring a cluster with less than 2 datastores, you will receive an HA warning “The number of heartbeat datastores for host is 1, which is less than required: 2” You can add an option to the HA Advanced Options to supress this warning.

1. Log in to vCenter Server
2. Right-click the cluster and click Edit Settings
3. Click vSphere HA > Advanced Options
4. Under Option, add an entry for das.ignoreInsufficientHbDatastore
5. Under Value, type true
6. Click Cluster Features
7. De-select Turn on vSphere HA and click OK
8. Wait for all the hosts in the cluster to re-configure HA, then …

When setting up a cluster for testing you may not have 2 nics to use for management. to bypass the warning you can configure HA to not alert you for this issue.

To perform the steps in the c# client.

1. From the VMware Infrastructure Client, right-click on the cluster and click Edit Settings.
2. Select vSphere HA and click Advanced Options.
3. In the Options column, enter das.ignoreRedundantNetWarning
4. In the Value column, type true
5. Click OK.
6. Right-click the host and click Reconfigure for vSphere HA. This reconfigures HA.

To perform the steps in the webclient.

1. From the vSphere Web Client, right click …