Re: Speed on 3581 LTO-2 Tape Drive

[rob@xxxxxxxxx]

One recommendation from IBM is to NOT use a processor card for both tape 
and disk.  I had a pmr open where a newer tape drive varied greatly in 
speed from IFS objects to DB2 and DLO objects.  IBM claimed it was because 
I was sharing a processor card for both tape and disk.  I've moved some 
cards around and I am waiting for the next full save.  Should be May 21, 
2004.  In general the 3582 blows the doors off of the 3590E.  That's what 
had me so concerned during our last full save.

This was some of the stuff I pasted into the pmr:

We did a system save in restricted state 8 weeks ago on a 3590E 
attached via 2749.  This time we did it on a 3582 fiber attached 
to a 5704. 
 
Time comparisons: 
SAVSYS 
  3590E 9 minutes 
  3582  13 minutes 
SAVLIB *NONSYS 
  3590E 3 hours 9 minutes 
  3582  4 hours 30 minutes 
SAVDLO 
  3590E 8 minutes 
  3582  15 minutes 
SAV of IFS 
  3590E 12 hours 1 minute 
  3582   4 hours 51 minutes 
 
Sorry, but I only have this report from 3/30/04 
                                % of         Size       in
Description                     Disk     1,000,000      bytes
User libraries                 53.79           1409242.19
User directories               30.20            791133.24
Folders and documents            .04              1092.50
QSYS                             .22              5870.49
Other IBM libraries              .63             16515.66    
Licensed Internal Code           .25              6485.42
Temporary space                 1.41             36808.04
Unused space                   12.93            338612.16
System internal objects         .17               4358.07
Objects not in a 
library                         .00                   .02 
TOTAL                         99.64            2610117.79

Rob Berendt
-- 
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com