A stub file is created on the file system from which a file is migrated. The stub file contains information for the HSM for Windows client to recall the original file to the file system.
A stub file contains the same recall information whether it was created by a migration job, a list migration, or a threshold migration.
When you or a Windows application accesses a migrated file stub, the HSM for Windows client automatically recalls the file from Tivoli® Storage Manager storage. This automatic recall is called transparent recall.
When a file is migrated, the last access time of the file does not change.
You can selectively recall a file from Tivoli Storage Manager storage if a stub file exists on the file system.