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Status Future consideration
Workspace Storage Protect Family
Categories Spectrum Protect (Server)
Created by Guest
Created on Mar 18, 2022

RELATED IDEAS

speed up backup stgpool for file pools with dataformat=nonblock

On a SP server, we have lots of data from a CM8 environment, e.g. very many small files. About half of it from ICC and the other half from d3. 99% of this data is stored in FILE pools with DATAFORMAT=NONBLOCK because otherwise SP would cause a storage overhead of about 40% due to the block alignment.

Unfortunately doing a BACKUP STGPOOL to tape from such a FILE pool is extremely slow, only about 10% of the speed of a BACKUP STGPOOL from comparable data in a FILE pool with DATAFORMAT=NATIVE (the default) in the same server.

That means we currently only have the choice between pest and cholera...

It should be possible to speed up the BACKUP STGPOOL also from a NONBLOCK pool significantly.

Idea priority High
  • Guest
    Reply
    |     Mar 19, 2022

    A container pool backup to tape ("protect stgpool") is also slow and could really use a speedup ...

  • Admin
    Juan Carlos Jimenez Fuentes
    Reply
    |     Mar 18, 2022

    There is no current plan to revisit DATAFORMAT=NONBLOCK. We recommend leveraging container pools.

  • Admin
    Juan Carlos Jimenez Fuentes
    Reply
    |     Mar 18, 2022

    IBM has evaluated the request, and has determined that it can not be implemented at this time or does not align with the current multi-year strategy. This request may be resubmitted for consideration after 18 months from the date of submission. The request submitter will automatically be notified by email when the request qualifies for reconsideration and resubmission.

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