Start a Conversation
UNSOLVED

jrburley

updated

20 years ago

J

jrburley

1 Message

0

669

October 31st, 2006 09:00

Centera Aware application deletes record

If an Centera aware application (CommVault) issues a delete of an archived record, will the space that was taken up with the record, (C-Clip) be available to be written to again with another archived record? The assumption is that the Centera is setup for the ability to delete records.

Message was edited by:
jrburley
  • A

    admin111111

    70 Posts

    268

    0

    Posted November 3rd, 2006 08:00

    A file written to the centera has 2 parts - clip and blob. Clip is metadata and usually 1-50k in size. Blob is the actual data of the file. When a delete is issued to a cluster running CentraStar 2.3 and higher, the clip is immediately removed and 2 new special clips called reflections are created.

    The blobs are not removed immediately, a process called GarbageCollection (GC) cleans them up at a later time. IncrementalGC lags approximately 2 weeks on a healthy cluster, FullGC is much slower and can take months to clean up the blobs. If there is any type of self healing or cluster integrity issues, IncrementalGC is paused until cluster is healthy again.
  • A

    admin111111

    70 Posts

    268

    0

    Posted November 17th, 2006 06:00

    Was the last post helpful? If it was, can you mark this thread as answered and award the points.

    Thanks!
  • S

    Sarbjit

    20 Posts

    268

    0

    Posted February 27th, 2008 06:00

    c-clip is metadata which gets deleted and the blob will be taken away by wither incremental or full GC agent...

Dell Support Resources

Latest Solutions

View More