vCenter HA using the vSphere Client

vCenter HA first launched with vSphere 6.5 for the vCenter Server Appliance and it was configured using the Flash based vSphere Web Client.

With vSphere 6.7 U1 you can now configure vCenter HA, much more easily, using the HTML5 based vSphere Client.

Screenshot 2019-04-02 at 13.59.14

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Patching/Updating a VCHA enabled vCenter Server Appliance

The first patch to vSphere 6.5 was released last week. You can find the release notes here 

That means that you may be looking to patch your vCenter HA enabled vCenter Server Appliance(s).

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Caution: VCHA user password

When VCHA is enabled, a new OS user “vcha” is created and used for the file based replication.

This morning I experienced an issue on one of my VCHA setups (but not the other) where replication was failing when I arrived into the office.

Update 23/01/2017 – This is a real issue and not a once off. VMware Engineering are aware.

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Caution: VCHA + Snapshots

I’ve been playing around with VCHA and had been taking snapshots and have encountered some issues using snapshots on a VCHA enabled VCSA 6.5

You need to exercise caution when using snapshots on a VCSA that is enabled for VCHA.

Important: This is only when snapshot tasks are being done to the VCSA 6.5 VM. For all other VMs in your inventory there is no issue.

This includes taking snapshots of the current Active, reverting to snapshots of the current Active and deleting snapshots of the current Active.

For any and all of those tasks, ensure that the VCHA Cluster is in “Disabled” mode.

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