VMS provides pseudo-vaults, which are the locations LIBR and (blank)LIB. These OUTCODEs use the normal slot for the volume in the tape library and have special meaning to VMS; tapes in these locations are not eligible for scratch until VMS releases control. Additionally, tape data sets vaulted to the LIBR OUTCODE cannot be recreated. The LIBR and (blank)LIB locations are frequently used for prestaging, delaying movement of a tape from the library while keeping the tape under VMS protection.
Note: The character (blank) denotes a blank.
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