I had similar run-ins with SAN people that seem to think that a SAN is a magic bullet and will always perform perfectly regardless of how they carve it up.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of subsoniq Sent: Friday, September 17, 2004 12:41 AM To: Exchange Discussions Subject: Re: Outlook "Waiting for Exchange..." dialogs yeah, what Ed said. Had a problem like this pop up on a SAN connected server after a round of mailbox migrations that pushed it up to 2000 users. Turns out when the server was built (before I had started) the email architect had no say in how the SAN was set up for this server, the SAN admin just took 4 very large drives and made a RAID 5, then carved that up to the desired amount of "drive letters" the exchange architect asked for. 5 mail stores running off of 4 drives, disk I/O was completely choked. I always use the perfmon counters Physical Disk | Avg. Disk sec/Read & Avg. Disk sec/Write to check disk I/O performance, though you should get a good baseline from a normal acting server to see what it should look like. On Tue, 14 Sep 2004 17:37:31 -0700, Ed Crowley [MVP] <[EMAIL PROTECTED]> wrote: > That's definitely an interesting thought. The last customer I had > that was displaying this particular problem had throughput problems on > its SAN. You might monitor the disk queues. > > Ed Crowley MCSE+Internet MVP > Freelance E-Mail Philosopher > Protecting the world from PSTs and Bricked Backups!T > > > [snip] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang =english To unsubscribe send a blank email to %%email.unsub%% Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
