Unmapping a host from a volume removes the mapping between the host and the volume. The volume is moved to the unmapped state.
If this mapping was the last mapping to the host and the host is not a member of a host group, this host becomes part of the default storage domain.
If this mapping was the last mapping to the host and the host is member of a host group and there are no other explicit mappings to the host group or any other host in the host group, then this host group and all of its members become part of the default storage domain.
To unmap a host from a volume:
The Array Summary page is displayed.
The Volume Summary page for that array is displayed.
The Host Summary page is displayed.
The Host Details page is displayed.
The Mapped Volume Summary page is displayed.