In this case, the iSCSI devices are being used as Raw devices, not filesystems, so filesystem bottlenecks would not be the issue.
Thanks for the brainstorming though. Ben -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Richard Sims Sent: Sunday, May 20, 2007 7:03 AM To: [email protected] Subject: Re: Poor TSM server performance on Sun. On May 20, 2007, at 8:50 AM, Michael Bartl wrote: > But the good thing is, that (even without a reason) the problems were > gone when we started to use raw devices instead of filesystems. ... Makes one wonder if excessive, delayed file system sync operations were the issue, in writes. This might be tested by performing pure read operations in the file system ('cp SomeFile /dev/null' is a basic test, versus copying file to file). Richard Sims
