vSAN recreate vCLS

[RsiOrthi]

Hello,

I have a big problem right now that I don't know how to fix it.

My scenario is the next one:

- I have 3 hosts with ESXi 7.0.3 and there is a vSAN configuration between them.

The problem is that 2 of vCLS machines are in the vSAN datastore instead of the local datastore of each Host. What does it means? The problem is that I can't access into the vSAN datastore now and I can't turn on the machines beacuse all of them appears like innacessible.

I tried to recreate the vSAN Cluster but there is no way.

Could you help me with this? How can I recreate those vCLS or create a new Cluster without loose the machines inside the vSAN datastore?

[Scott Vessey]

As your post needs moving to the area for vSAN, I have reported it to the moderators.

 

[Duncan Epping]

You enable "retreat mode" and then you disable it again. Retreat mode will delete the VMs and then when you disable it, the VMs will be recreated.

vCLS prefers to have the VMs stored on shared storage for accessibility, so it is not strange to see it deployed on vSAN itself. 

Enabling retreat mode is fairly easy:

Go to your vCenter Server object, go to the configure tab, then go to “Advanced Settings”, add the key “config.vcls.clusters.domain-c<identifier>.enabled” and set it to false.

The domain “c-number” for your cluster can be found in the URL when you click on the cluster in the vSphere UI. It should look something like the following, where "c22" is my cluster c-number: vcsa-06/ui/app/cluster;nav=h/urn:vmomi:ClusterComputeResource:domain-c22:4df0badc-1655-40de-9181-3422d6c36a3e/summary.

[RsiOrthi]

Hi, thanks for the answer.

I have tried that but nothing happens.

Now, I've checked that 2 of 3 disk groups are in bad state. I don't know if I can fix it.

[Duncan Epping]

Is this a lab or production?

[RsiOrthi]

It's production scenario.

[Duncan Epping]

Then I would recommend to contact support if you have these types of diskgroup related problems. As that can quickly result in data being inaccessible.