at least one volume could not be unmounted

Rebooting the host would be last option, but I'm looking for a fix on this.

Tried disabling HA & then deleting/unmounting datastore - Didn't work Tried restarting mgmt services - Didn't work

vSphere-HA while if I check the datastore hearbeating in HA properties, this datastore is not a part of Datastore heartbeats as well. I browsed through the datastore, there's only folder named. Correct the problem and retry the operation. Correct the problem and retry the operation.ĭELETE - if trying to delete it's giving me below error.Ĭall 'HostDatastoreSystem.RemoveDatastore' for object 'datastoreSystem-3994' on vCenter Server 'xyz' failed.Ĭannot remove datastore 'Datastore Name: abc VMFS uuid: 507978c7-f56a954c-b170-782bcb507614' because file system is busy. Out of the 5 hosts in cluster it is unmounted from 4 while it's still mounted on one host & gives below errorĬall 'HostStorageSystem.UnmountVmfsVolume' for object 'storageSystem-3994' on vCenter Server 'xyz' failed.Ĭannot unmount volume 'Datastore Name: abc VMFS uuid: 507978c7-f56a954c-b170-782bcb507614' because file system is busy. Also, the error message for the failed attempt to unmount the disk for repairs comes with a reminder that I should close all open files and applications on that disk and try again, which seems ludicrous since I can't even boot from it.I'm trying to delete or unmount a datastore but both are failing with below error messages. I would like to try booting in Verbose mode, but since it no longer seems to be recognizing the HD as a viable boot disk, I haven't bothered.

I haven't done any fiddling with permissions (at least, not intentionally), but the buttons for both verification and repair of permissions in Disk Utility are greyed out. Prior to zapping the NVRAM and PRAM, there was no startup chime when I turned on the power, but there has been every time since. Similarly, holding down the option key during startup to force a boot disk selection yields the install DVD as the only option. - After zapping the NVRAM and PRAM per, the HD is not listed as an option by 'Startup Disk.' from the Utilities dropdown on the install DVD. So you need to start from a different volume to modify the internal drive. Error: Filesystem verify or repair failed. The system can’t unmount the disk you are currently booted from.

At least one volume could not be unmounted