Tape lifecycle - EOSCTA Docs

What is meant by reclaimable as related to tape state? What does reclaimable mean?

Jeff Fermilab

Hi Jeff,

reclaimable = the tape is in a state where you can perform reclaim operation on the tape.

Reclaim operation = recover the empty space on the cartridge = make it again usable for the system.

A tape can be reclaimed if all files have been moved elsewhere. All what remains are just indexes in the recycle bin for deleted files pointing to the tape segments on that tape. If you run reclaim those indexes are deleted, recycle bin for that particular tape is cleaned and counters (such as last file sequence number, occupancy, etc. are set to 0).

After reclaim, tape is logically empty and can be again used = written to from the beginning.

Best regards,

Vladimir Bahyl