CNS Offsite cycle.
Here is summarized the life cycle of DR media at CNS, UF. Brief descriptions of the various states of the media are supplied to the right. Clicking on the various portions of the diagram will take you to a somewhat more detailed treatment of each state, or the processes between them.
Those familliar with the TSM DR faculties will note that COURIER and COURIERRETRIEVE states are ommitted from this graph. That is an intentional omission, these states are not used in our procedures.
- NEW
Tapes arrive from the manufacturer.
- SCRATCH
Tapes inserted into the physical library, checked into the logical library of the library manager instance. These tapes are available to be requested by a process or session.
- MOUNTABLE
Tapes which have been written to, and which are still present in the physical library.
- NOTMOUNTABLE
Tapes which have been written to, and which have been ejected from the physical library. They are presumed still to be onsite. At CNS, these tapes should be present either in the I/O drawer of the library, or in the 'OSG OUTGOING' rack.
- VAULT
Tapes which have been handed over to the courier for storage. These tapes require an interaction with the storage service to reclaim.
- VAULTRETRIEVE
Tapes which are resident at the storage service, and have been deemed ready for retrieval. At the next interaction, these tapes should be requested from the courier service. These tapes are administratively 'blank'.
- ONSITERETRIEVE
Tapes which have been retrieved from the courier service. They are 'blank' and are ready to place on the shelf.
- SHELF
Tapes with physical and electronic labels, present on a shelf in the machine room.