Resource lock
While processing a task on a resource, all of the resource groups assigned to the logged-on user are locked for exclusive access.
A secondary window (such as the Basic Information Display) or an operation from the service processor (SVP) locks all of the resource groups in the storage system.
When a resource is locked, a status indicator appears on the
Device Manager - Storage Navigator status bar. Click the
Resource Locked button to view information about the locked resource.

