Trying to re-use a previous VMware ESXi host, but the vSAN Disks are still claimed. No worries – Below we will walk you through how to remove the drives and get your disks back to rebuild your vSAN Cluster!
First run this command to check if the disks are apart of the vSAN Cluster
esxcli vsan storage list | grep naa
Once you run the esxcli vsan storage list | grep naa, then you will need to run the command below, to prevent that the automatic disk claim is disabled for this procedure.
esxcli vsan storage automode set --enabled false
Once the vSAN automatic disk claim command is completed, then you may remove vSAN Disk Group Names with the command below. Replace the (VSAN Disk Group Name) with your corresponding naa. ID.
esxcli vsan storage remove -s (VSAN Disk Group Name)
After all vSAN Drives have been removed from each ESXi host. Then you will want to verify that all the vSAN Disks no longer show up and you will want to run the same command as you did in the beginning.
If nothing shows up then you successful removed all vSAN Disks.
esxcli vsan storage list | grep naaTo finalize the removal of vSAN you will want the host to leave the vSAN Cluster so you will need to run this command.
esxcli vsan cluster leaveYou will see a vSAN Clustering is not enabled on this host message.
Once you have completed all those steps, you will successfully see that all the SAS SSDs below are no longer claimed by vSAN. Now the ESXi host is ready for a fresh installation!
5 comments
Issuing the command: esxcli vsan storage remove -s naa…
Results in: Unable to remove device: Disk mapping is not mounted on this host: naa….
Hi! What version of vSphere/vSAN are you running?
Have you tried:
esxcli vsan cluster leave
esxcli vsan cluster get
Then –
esxcli vsan storage remove –uuid
Did you ever get this fixed? Having the same issue
Did you get this fixed… having the same issue
Hello, yes this walk through works if you follow the disk group name and replace with yours you will be able to remove the disk, after all said and done – reboot host and then should be all gone. It was very quick for me to remove the disks after few minutes it was back and ready for a new vsan cluster