Re: Domino 8 compression

[tkreimer@xxxxxxxxxxxxxxx]

   Rob,
   It tells me that the backup speed is limited by the actual write speed of
   the tape drive. Before, the tape drive was compressing the data, now the
   data is coming pre-compressed.  Either way, it is writing the same amount
   of data to the tape (assuming similar compression ratios), even though the
   amount of data reported by the system is different.

   You would need the stats like the compression ratio that Chris mentions in
   a previous posting, although that has moved from SST to PRTERRLOG
   TYPE(*VOLSTAT) VOLTYPE(3580) and you would need a never before used tape
   to figure it out, or calculate your own deltas from before and after
   reports.

   =====================
   Tom Kreimer
   Network Manager
   Buckhorn Inc, Milford OH

   From:       rob@xxxxxxxxx
   To:         Lotus Domino on the iSeries / AS400 <domino400@xxxxxxxxxxxx>
   Date:       05/19/2009 11:49 AM
   Subject:    Re: Domino 8 compression
   Sent by:    domino400-bounces+tkreimer=buckhorninc.com@xxxxxxxxxxxx

   --------------------------------------------------------------------------

   The length of the save duration didn't really change that much.  Summary,
   only chopped off 5 minutes by using three less of our 70GB disk drives.
   What's the deal, it's the number of the files and not the size?  So did we
   save the 5 minutes by removing the  800+ insignificant l_ archive log
   files and not by the compression of the large files which freed up over
   200GB?

   Before compression:
   05/11/09  17:32:13 start
   05/11/09  19:01:48 2017181 blocks processed for sequence 1, volume AMON15
   05/11/09  20:33:31 2042477 blocks processed for sequence 1, volume AMON25
   05/11/09  21:00:36 576892 blocks processed for sequence 1, volume AMON35
   05/11/09  21:00:40 4308 objects saved.

   After compression:
   05/18/09  17:32:12 start
   05/18/09  19:01:48 1742161 blocks processed for sequence 1, volume AMON11
   05/18/09  20:33:45 1747936 blocks processed for sequence 1, volume AMON21
   05/18/09  20:55:23 387384 blocks processed for sequence 1, volume AMON31
   05/18/09  20:55:26 3555 objects were saved on volumes AMON11 AMON21 AMON31

   And if I only have about 850+ files where are the rest of the 3555 objects
   saved coming from?  OBJ(('/ARCHIVE1/*'))
   Note:  Turns out a bulk of them are in /ARCHIVE1/NOTES/DATA/domino and are
   somewhat static.

   Sometime when the server is down I should probably
   - delete the *.tmp files
   - move the one archive file out of the DATA directory and into the
   DATA/ARCHIVE directory.  Just for cleanup reasons.
   - remove the full text index over the archive of the fellow who's been
   gone for 3 years.  (ties up 238MB in the FT alone)

   Rob Berendt
   --
   Group Dekko Services, LLC
   Dept 01.073
   Dock 108
   6928N 400E
   Kendallville, IN 46755
   [1]http://www.dekko.com

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