A little more explanation is going to be needed.  A 1GB ethernet is not
going to give 800mb/s, let alone 200mb/s.  1GB ethernet is only going to
provide one direction throughput of 110mb/s.  Do you mean a 10gb ethernet
connection?





From:   "Lee, Gary D." <GLEE AT BSU DOT EDU>
To:     ADSM-L AT VM.MARIST DOT EDU
Date:   05/27/2011 09:35 AM
Subject:        Tsm server possibly limiting backup performance
Sent by:        "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>



Tsm server 6.2.2
OS redhat enterprise linux 6.0
Client tdp for exchange, sqlserver, and backup archive client

Client connected via 1 gb ethernet connection.

In my experience, I yhave never been able to se throughput of much more
than 200 mb/s during a tsm backup, whether tdp or regular client.
I wonder, is TSM limiting a single session's bandwidth so as to insure
availability for other client sessions which might begin; i.e. prevent one
backup stream from monopolizing the server's network connection?

I have run ftp  and other tests to the server, and achieved throughput of
around 800 mb/s over the same connection.



Gary Lee
Senior System Programmer
Ball State University
phone: 765-285-1310





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