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Status Not under consideration
Created by Guest
Created on Jun 21, 2011

TSM: Smarter Reclamations when objects span tapes

If an object (a huge file, or a backup from a TDP agent, for example) spans three or more volumes, so it starts on one volume, consumes all of one or more volumes, and ends on the third (or last) volume, any reclamation of a tape containing a segment of the object, particularly the first or last, will cause the whole object to be read and rewritten.

It makes no sense to copy an object segment that consumes a full segment during reclamation; doing so merely trades one volume for another. Move the partial-volume segments, but please leave the whole-volume segments in place. If we need to move them, perhaps to rotate tapes, let us choose to use MOVE DATA commands.

Idea priority Medium
  • Guest
    Reply
    |
    Jun 12, 2015

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - Storage
    Product - Tivoli Storage Manager (TSM) Family

    For recording keeping, the previous attributes were:
    Brand - Tivoli
    Product family - Storage
    Product - Tivoli Storage Manager (TSM) Family