Re: ESE performance errors

From: Ben Winzenz [Exchange MVP] (ben_winzenz_at_NOSPAMdotmessageonedotcom)
Date: 02/03/05 

Date: Thu, 3 Feb 2005 12:24:34 -0600

How is your server architected? Are you using a NAS or DAS for disks? How
many users does this server support? You may need to check your disk
configuration to make sure it is optimal. The following articles may help.
Regarding your maintenance window, make sure that it isn't overlapping the
Backup window at all. Normally, during an online backup, maintenance will
be stopped.
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q326294
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q317173
http://groups-beta.google.com/group/microsoft.public.exchange.admin/browse_frm/thread/350183880bc0d6ab?hl=en&lr=&c2coff=1&rnum=1&prev=/groups%3Fq%3DEvent%2B509%2BESE%26hl%3Den%26btnG%3DGoogle%2BSearch
use http://tinyurl.com/3wm4o if the above link wraps. 

-- 
Ben Winzenz
Exchange MVP
"SMS" <SMS@discussions.microsoft.com> wrote in message 
news:CF3F7F0E-46A2-4F82-A3FD-06B8C4E2A489@microsoft.com...
> My Exchange 2003 server is getting these messages early every morning. 
> Event
> ID's 508, 509, & 510. All reference ESE. Changed the mailbox maintenance
> window around to see if that was conflicting with our backup exec 9 
> backups
> to no avail. There appears to be nothing wrong with the server's hardware.
> It's a new HP Proliant. Can't seem to find anything within the knowledge 
> base
> or search engines. Below is a snapshot. Let me know your thoughts / ideas.
> Thanks!
>
> Information Store (2696) Third Storage Group: A request to read from the
> file "D:\Program Files\Exchsrvr\MDBDATA\Resource Mailboxes.edb" at offset
> 19542646784 (0x000000048cd52000) for 4096 (0x00001000) bytes succeeded, 
> but
> took an abnormally long time (64 seconds) to be serviced by the OS. In
> addition, 0 other I/O requests to this file have also taken an abnormally
> long time to be serviced since the last message regarding this problem was
> posted 428 seconds ago. This problem is likely due to faulty hardware. 
> Please
> contact your hardware vendor for further assistance diagnosing the 
> problem.
>

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