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Status Not under consideration
Workspace Storage Protect Family
Categories Spectrum Protect (Backup-Archive Client)
Created by Guest
Created on Mar 29, 2016

RELATED IDEAS

dsmc - more producer threads per filesystem

Modern SAN storage should not be limited to one producer thread per client filesystem during backups, nor 4 producer threads per DSMC instance.

Requesting:
A) RESOURCEUTIL max value should be higher, perhaps 20.

B) New option, RESTHREADSPERFS, to support multiple producer threads per filesystem, default 1 (current), and max perhaps 4 or 5.

Assumption is that the directory list would be separate from the file list, so the producer threads could always grab another directory to scan. Perhaps new directories get pushed onto the filesystem list, or whatnot.

This would not help single directory with huge numbers of files, but would help single huge filesystems with multiple directories.

Idea priority Medium
  • Guest
    Reply
    |     Sep 10, 2018

    This seems to be partially delivered:
    * RESOURCEUTIL can be 100 as of 8.1.2
    * Still only one producer thread per filesystem.

    Recommended change: Option to cause producer threads to add directories to the queue to be scanned, rather than immediately traversing them. This would allow additional producer to process the same filesystem, one producer per directory. This would still bog down when there are a large number of small directories, or a small number of large directories. This would greatly improve backup performance of filesystems with large numbers of files fairly evenly balanced among subdirectories.

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