Disk Reads per second Disk Writes per second Average Disk Queue Length I'd track both logical disk and physical disk.
Regards, Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com From: Reimer, Mark [mailto:[email protected]] Sent: Monday, February 06, 2012 3:56 PM To: NT System Admin Issues Subject: IOPS's calculations Hi folks, Thanks for all your help in the past. Looking at setting up a SAN. From my research, I think one thing to be aware of is current IOPS (disk). There are a number of sites that will help you determine IOPS based on what hard drives (and RAID configuration). My question is: Many of my current servers are light use. The IOPS that these servers are capable of is much greater than what is actually being used. So, in order to more properly size the SAN, is there a way to determine working IOPS? That is, what is actually being used? I assume Perfmon would help, and will need to log over a period of time (I think a week would be about right, to catch most scenarios). But what counters, and how to analyze those counters? Servers are Windows 2003. Thanks. Mark Reimer, A+, MCSA Servers & Networking Admin Prairie Bible Institute Box 4000 Three Hills, AB T0M-2N0 Canada Tel: 403-443-5511, Ext. 3476 Fax: 403-443-5540 Email: [email protected]<mailto:[email protected]> www.prairie.edu<http://www.prairie.edu/> ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected]<mailto:[email protected]> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
