Please check is there any flex clone created for this volume?
try unmounting from command line
share log and error if any
It unmounts only at host level.. the command needs to be run at every host in the cluster
The cause is different from my scenario.
THis is happen because I use Keep signature option when mounting the datastore from storage replication result.
There no broken path, host is not disconnected. All is still in good condition.
I already simulate same situation and use resignature option, there is no problem.
The unmount options shows up in the web ui.
All host in the cluster automatically see the new datastore.
No problem when grow the datastore (see my other thread in here : Problem when grow datastore )
Please share your experience when using keep signature option when mount the datastore fellas.
Is there someone having similar issues with me ? Please share.
I'm having exactly the same behavior like you.
I use LUN replicas mounted without VMFS resignature on a DR site and H5/web client does not allow an unmount of such datastores.
Command line works well (esxcli storage filesystem unmount -u <UUID>).
Did you find a reason?