Ike,
Have a search in www.adsm.org for the answer to your query on idle wait.
In particular see Andy Raibeck's note dated 01/02/2002 and subject
Re: WHy Idle wait keeps incrementing?(reply)
You can get very satisfactory results with an os390 TSM server.
Make sure you are running multi threaded for cpu
If you do a "query  option" check that you have
MPThreading       Yes
Have a look at the information provided by query active  ie.
q ac begind=today-1 begint=08:00 endd=today endt=08:00 originator=client > 'your
filename'

Below is the output from the backup of a typical one of my novell data servers
How would this compare with your stats for particularly Network data transfer
rate & Aggregate data transfer rate.

02/15/2002 00:51:04
ANE4952I (Session: 9533, Node: D1)  Total number of objects
 inspected: 1,372,588
 02/15/2002 00:51:04
ANE4954I (Session: 9533, Node: D1)  Total number of objects
 backed up:    9,676
 02/15/2002 00:51:04
ANE4958I (Session: 9533, Node: D1)  Total number of objects
 updated:          0
02/15/2002 00:51:04
ANE4960I (Session: 9533, Node: D1)  Total number of objects
 rebound:          0
02/15/2002 00:51:04
ANE4957I (Session: 9533, Node: D1)  Total number of objects
 deleted:          0
 02/15/2002 00:51:04
ANE4970I (Session: 9533, Node: D1)  Total number of objects
 expired:      1,256
 02/15/2002 00:51:04
ANE4959I (Session: 9533, Node: D1)  Total number of objects
 failed:           8
02/15/2002 00:51:04
ANE4961I (Session: 9533, Node: D1)  Total number of bytes
 transferred:     3.42 GB
 02/15/2002 00:51:04
ANE4963I (Session: 9533, Node: D1)  Data transfer time:
        1,500.81 sec
 02/15/2002 00:51:04
ANE4966I (Session: 9533, Node: D1)  Network data transfer rate:
        2,390.71 KB/sec
 02/15/2002 00:51:04
ANE4967I (Session: 9533, Node: D1)  Aggregate data transfer
 rate:        539.48 KB/sec
02/15/2002 00:51:04
ANE4968I (Session: 9533, Node: D1)  Objects compressed by:
               0%
02/15/2002 00:51:04
ANE4964I (Session: 9533, Node: D1)  Elapsed processing time:
         01:50:50







"Hunley, Ike" <ike.hunley AT bcbsfl DOT com> on 02/14/2002 04:57:23 PM

Please respond to "ADSM: Dist Stor Manager" <adsm-l AT vm.marist DOT edu>

To:   adsm-l AT vm.marist DOT edu
cc:    (bcc: John Naylor/HAV/SSE)
Subject:  Re: Export/Import process



Great,

Thanks a lot.  I'm reading TSM doc as I respond to TSM issues.

We've moved a client server from a UNIX based TSM to a TSM(4.2.1.9) started
task running  on OS/390 v2r9.  Now backups take a LOT more time. Where do I
begin to look for the why?

I see extended IDLE waits.
  1,162 BPX--  IdleW  2.0 H   76.2 M   4.4 K Node  WinNT

What causes idle wait?