vSphere Storage - ESXi 5.1 - Documentation - VMware

vSphere Storage
n -L targetreset – Resets the entire target. The reset clears any reservations on all the LUNs associated
with that target and makes the LUNs available to all servers again.
n -L busreset – Resets all accessible targets on the bus. The reset clears any reservation on all the LUNs
accessible through the bus and makes them available to all servers again.
When entering the device parameter, use the following format:
/vmfs/devices/disks/disk_ID:P
Breaking Device Locks
The -B option allows you to forcibly break the device lock on a particular partition.
-B --breaklock device
When entering the device parameter, use the following format:
/vmfs/devices/disks/disk_ID:P
You can use this command when a host fails in the middle of a datastore operation, such as grow extent, add
extent, or resignaturing. When you issue this command, make sure that no other host is holding the lock.
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