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Status Not under consideration
Workspace Storage Protect Family
Categories Spectrum Protect (Backup-Archive Client)
Created by Guest
Created on Feb 16, 2017

RELATED IDEAS

Use SEEK_HOLE to improve handling of sparse files during backup and restore

Backing up and restoring Linux sparse files is extremely slow.
Is it possible for IBM to modify the software to use the SEEK_HOLE functionality to detect holes quickly?
See details at this URL: http://stackoverflow.com/questions/13252682/copying-a-1tb-sparse-file
This allows to detect holes in sparse files much more efficiently.
It is used, for example, in BSD tar (but not GNU tar).

Also, some additional information.

RHEL 6 which I am using is based on Linux kernel 2.6.
Officially, SEEK_HOLE is not supported by kernel 2.6, but it appears that Red Hat has ported it into their kernel, because BSD tar was able to archive sparse files instantaneously on my RHEL 6 servers.
So, the functionality appears to be there.

Idea priority Medium
  • Guest
    Reply
    |     Feb 20, 2017

    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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