Hi Scott. Try rescanning HBAs on all hosts VMware Knowledge Base.
If that doesn't solve your problem, try restarting management services (SSH into ESXi and run "restart services.sh" command) on evert ESXi host and try again
What kind of shared storage do you use (iSCSI/FC/NAS)?
What basically need to be done on the storage system, is to present the LUN to the hosts which are supposed to see/use it.
Moderator: Thread moved to the vSphere area.
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from the Description I can understand - > I unmounted it and tried to remount, but it still shows the same host
If you are trying this on the local datastore (DAS) to another host then that is not possible.
if you are using the SAN and you have mapped the LUN only to this host . To resolve this - >
you need to go to the storage array console
map the LUN to the desired host
perform the rescan the storage at cluster / on all the host.
What kind of storage system is it?