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Status Delivered
Workspace Storage Protect Family
Categories Spectrum Protect (Backup-Archive Client)
Created by Guest
Created on May 20, 2014

RELATED IDEAS

New option to exclude compressed files from compression

When using client compression there are files that are already compressed that will (probably) grow in size.
There is the ability to exclude files from compression processing with the exclude.compression option. However this requires a separate line for each type of compressed file e,g.
exclude.compression /…/*.gz
exclude.compression /…/*.Z
….
As there are @200 different compressed file suffices this makes for very large client options sets and can be a processing overhead as each exclude needs to be processed when a file is a backup candidate.
This change is to have a new feature to exclude compressed files from compression processing.
There are 2 possibilities:
1. A new exclude option exclude.compressed /dir - this will exclude any compressed files in /dir from compression.
2. A new option DontCompressCompressedFiles – this will exclude any compressed files from compression.

In both cases the definition of what is a compressed file is defined by IBM and is not configurable.
The option should be available in the client option set.

Idea priority Medium
  • Guest
    Reply
    |     Nov 7, 2016

    The main problem reported by this RFE is resolved with Spectrum Protect's movement to LZ4 compression. LZ4 compression will prevent the data from expanding. In addition, LZ4 compression is very efficient with low processing overhead.

  • 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

  • Guest
    Reply
    |     Oct 28, 2014

    Thank you for submitting the request. This is a recognized requirement and a solution appears to be desirable. This request is not in a committed release plan for this year,
    but the theme is aligned with our multi-year strategy, and will be a candidate for our future release. IBM’s plans may change and no commitment is made that a solution will be provided.

  • Guest
    Reply
    |     Oct 6, 2014

    Thank you for your quick response. We will continue to evaluate this request for enhancement in future internal discussions.

  • Guest
    Reply
    |     Oct 6, 2014

    We based our decisions on what to exclude from compression based on the information contained on:

    http://pic.dhe.ibm.com/infocenter/storwize/unified_ic/index.jsp?topic=/com.ibm.storwize.v7000.unified.143.doc/ifs_plancompdata.html

    Regards
    Trrevor

  • Guest
    Reply
    |     Oct 2, 2014

    Thank you for submitting this request. It would be helpful if you could provide more information to help us make progress in our consideration of this enhancement. Can you provide more examples of files or application files that are compressed that should be taken into consideration beyond just gzip, zip, or etc. file? We would want to be as generally complete as appropriate in our implementation to avoid iterating too much on file types and such once a solution was delivered.

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