Look at idlewait (client think time and compression time, comm wait (network
time), and media wait (TSM server time) in the accounting log
(server-dir/dsmaccnt.log - you may need to SET ACCOUNTING ON)

Then you can definitely see where the slowdown is.  Compression on a low-end
client will slow things down.  Can your netwrok hardware do compression
instead?

> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
> Juergen Heinrich
> Sent: Friday, July 13, 2001 9:43 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: using compression on netware tsm clients
>
>
>
>
> Hi,
>
> We are using compression on tsm netware clients (netware version
> 5.0 and 5.1).
> The Netware Server are dual pentium systems with 256 and 512 MByte RAM
> The TSM Client Version is 4.1.2.13
> The client option file:
> (See attached file: Dsm.opt)
>
> The backup speed of the incremental backup is very slow.
> We do need compression, because we are using WAN connections (max speed
> 256 KBit/s) to the TSM server.
>
> We have tested the uncompressed and compressed backup in a LAN (100 MBit/s
> ethernet)
> environment.
> It seems to be that the speed of uncompressed backups is up to 10
> time higher!
>
> Did anybody know a solution for this problem?
> sincerly
>
> Juergen Heinrich
> Verdi Information Consult GmbH
> Wittestrasse 30 K
> D 13509 Berlin
> Germany
>
> Phone:    +49 (0)30 / 43 73 67 0
> Mobil:    +49 170 / 3115109
> Fax: +49 30 / 437367-16
>