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 re-enable…..same issue…whoops thats not good! First step, check what luns are available to the cluster.

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. Log in to vCenter Server Right-click the cluster and click Edit Settings Click vSphere HA > Advanced Options Under Option, add an entry for das.

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. From the VMware Infrastructure Client, right-click on the cluster and click Edit Settings. Select vSphere HA and click Advanced Options. In the Options column, enter das.ignoreRedundantNetWarning In the Value column, type true Click OK.