Sorry, thought I had my cases correct. 1 gb (gigabit) ethernet ocnnection. Ftp and other tests yielded 800 megabit performance, Tsm sessions average 200 to 250 megabit.
Gary Lee Senior System Programmer Ball State University phone: 765-285-1310 -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Paul Fielding Sent: Friday, May 27, 2011 10:30 AM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] Tsm server possibly limiting backup performance I think clarification is needed on mb/s vs. MB/s. a 1gb (gigabit) (note lowercase) connection will certainly do 800 mb/s (megabit/s). it won't, however, do 800 MB/s (megabyte/s).... Paul On Fri, May 27, 2011 at 8:09 AM, Richard Rhodes <rrho...@firstenergycorp.com > wrote: > 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." <g...@bsu.edu> > To: ADSM-L@VM.MARIST.EDU > Date: 05/27/2011 09:35 AM > Subject: Tsm server possibly limiting backup performance > Sent by: "ADSM: Dist Stor Manager" <ADSM-L@VM.MARIST.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 > > > > > > ----------------------------------------- > The information contained in this message is intended only for the > personal and confidential use of the recipient(s) named above. If > the reader of this message is not the intended recipient or an > agent responsible for delivering it to the intended recipient, you > are hereby notified that you have received this document in error > and that any review, dissemination, distribution, or copying of > this message is strictly prohibited. If you have received this > communication in error, please notify us immediately, and delete > the original message. >