Proper memory sizing == ? On Thu, Oct 4, 2012 at 8:55 AM, Michael B. Smith <mich...@smithcons.com> wrote: > On PhysicalDisk, for the Exchange log/data volumes, you want to look at > “Avg. Disk Queue Length”, “Current Disk Queue Length”, and “Disk Transfers > per Second”. > > > > The third will track the actual IOPS for that volume, the first two give you > the average challenge you have meeting IO requests and give you a view of > instantaneous bursts of high IO that you may need to address. > > > > Note that this includes all activity on those volumes, not just Exchange. > This is actually more reasonable, because if you are using those disks for > more than Exchange, you have even more of an IO challenge. > > > > That being said, IO requirements on Exchange 2010 (given proper memory > sizing) are 90% less than they were in Exchange 2003. In Exchange 2013 > (given proper memory sizing), IO requirements are _99%_ less than they were > in Exchange 2003. > > > > If you want to look at only Exchange IO, then you examine the “MSExchange > Databases è Instances” object and track individually for “I/O Database > Reads/sec”, “I/O Database Writes/sec”, “I/O Log Reads/sec”, “I/O Log > Writes/sec”. > > > > From: phil levine [mailto:plevin...@yahoo.com] > Sent: Thursday, October 4, 2012 11:22 AM > > > To: MS-Exchange Admin Issues > Subject: Exchange IOPS > > > > In general what can I do to find out how many IOPS I am using in Exchange > 2010? What should I set up in Perfmon to do this or is there anything else I > can use to determine this? > > Thanks > > Phil > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to listmana...@lyris.sunbeltsoftware.com > with the body: unsubscribe exchangelist > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to listmana...@lyris.sunbeltsoftware.com > with the body: unsubscribe exchangelist
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