We had the same experience with Solaris (though I can't confirm it was
2.6).. Same exact symptoms.. FTP was lightning fast but TSM was a slug..
cpu, disks, and memory (1GB both sides) on both client and server were
relatively inactive during the backups. Both Sun boxes were new. Tried all
kinds of TCP/IP tweaks but nothing helps *at all*. In the interest of time
we gave up and threw TSM on an AIX server instead. The network guys saw long
pauses between acknowledgement packets but nobody could figure out why.
Unfortunately I don't have any real input but just wanted to chime in that
I've seen the same problem with a 4.1.2 installation.
-----Original Message-----
From: Lindsay Morris [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, July 03, 2001 5:18 PM
To: [EMAIL PROTECTED]
Subject: Re: Solaris 2.6 bad performance with TSM
Does your accounting log (dsmaccnt.log, in the server/bin directory)
indicate a lot of media wait, comm. wait, or idle wait?
If it's idle wait, turn on client tracing,;
If it's media wait, turn on server tracing;
If it's comm wait, see if you can get ftp to do the same thing, then bug
your network gurus.
If you're backing up directly to tape (q se f=d will tell you), try
going to
a disk pool instead.
Interesting problem. Please let us know how it comes out.
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]]On Behalf
Of
> Bonnie OShea
> Sent: Tuesday, July 03, 2001 5:17 PM
> To: [EMAIL PROTECTED]
> Subject: Solaris 2.6 bad performance with TSM
>
>
> We are running TSM 4.1.2 server on an enterprise E4500 server with
Solaris
> 2.6. Our performance is terrible, and we have tried all of the TCP
tuning
> and still nothing. What happens is this: When a backup is first
> kicked off,
> the speed is great, anywhere from 86 to 12 MB per second. Within
> 3 minutes ,
> it drops to about 4-5 MB/sec, then keeps dropping over time until
> it settles
> in about 500K/sec. Then if you stop the backup, and start it again,
it
> starts up at 500Kb/sec. If you stop the backup and wait about 3 hours
and
> start it, it starts up really fast again, then slows down. We are
puzzled
> and frustrated and so far neither Sun nor Tivoli has been able to help
us.
> Anyone?
>
>
>
> Bonnie O'Shea
> Manager, Information technology
> Hunt Oil Company of Canada Ltd
> (403) 531-1536
> [EMAIL PROTECTED]
>
