Thanks for that - I had an almost identical problem which turned out to be shared ISO image. I didn't get red alert plings but could no longer do vMotion and when I removed a host I could not add it back due to the 'identical url' error msg.
So I went though removing the ISO from each machine and then I could add the host back into vCenter and do vMotions.
Great- many thanks.
HariRajan, Thank you. This worked perfectly, I had almost the same situation -- a mounted ISO from the datastore in question. Upon removing that mounting from the VM I could re-add the host without losing the data on the disk.
HariRajan, even yeatrs latte your answer still save lifes , thanks !
This is old but it was exactly the situation I had in a mixed 6.0 - 6.7 environment. This solution worked even after 5 years of changes.
yeah NONE of the buttons are there, ESPECIALLY related objects!
EDIT: found a related object in summary but, it's empty and blank.
Re: Cannot add host to vCenter server because datastore is shared with an existing vCenter host
Do you have any VMs running on the new host yet? If so, bring them down, then bring them up on the other host. Disconnect the datastores, and then add the host to the vCenter server. Once added, you can then re-add the datastore to the host.
This worked beautifully, I unmounted the datastore, shutdown, pulled the raid card, booted up, added to cluster, shutdown, reinstalled raid card, booted up, re-mounted the data store! all appears good so far!