On Fri, 26 Sep 2003 16:25:29 -0500 John Schneider <[EMAIL PROTECTED]> wrote:
> Greetings, > I have a question about the TSM server process. I know it is a > complex, multi-threaded piece of software, but does it run on multiple > CPUs simultaneously? > On a 2-CPU Windows 2000 dedicated TSM Server for example, where TSM > is the only application running, are both CPUs kept busy by TSM? Or is > TSM only running on one, while the other sits around doing nothing but > overseeing all the other mostly idle processes. I can only guess about TSM on windows, but my guess would be that TSM uses all CPUs available when needed. > And is this also true of AIX? Does a 1-way AIX TSM server run the > same as a 2-way or 4-way with the same processor speed? > TSM on AIX uses a lot of CPUs if available and nessesairy. TSM has over 100 threads, most of which are sleeping, so on a _very_ busy server, well, TSM uses about 3 CPUs continuously on our 4cpu S7A, and I guess that on bigger servers, with more load and more CPUs, TSM would be able to use more CPUs. > If you can give real answer (not vague guesses, please) I would > appreciate it, and I know others would as well. I set up a lot of TSM > servers for low-end customers only backing up 10-15 servers, and putting > in a 1-way vs 2-way server can add a few thousand bucks to the cost. If > it really helped it would be worth it, but from what I can see in > performance monitors, it doesn't seem to be using multiple CPUs, but > that may be more from being I/O constrained than anything else. > For servers that have only 10-15 clients, well TSM should never need two CPUs, there is never enough load.... > John Schneider > > *********************************************************************** > * John D. Schneider Email: [EMAIL PROTECTED] * Phone: 636-492-0247 > * Lowery Systems, Inc. > * 1329 Horan Disclaimer: Opinions expressed here are > * Fenton, MO 63026 mine and mine alone. > *********************************************************************** -- Met vriendelijke groeten, Remco Post SARA - Reken- en Netwerkdiensten http://www.sara.nl High Performance Computing Tel. +31 20 592 8008 Fax. +31 20 668 3167 "I really didn't foresee the Internet. But then, neither did the computer industry. Not that that tells us very much of course - the computer industry didn't even foresee that the century was going to end." -- Douglas Adams
