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OK and now that I read Mark's reply to me, never mind.
Thanks,
Brian Desmond
[email protected]
w - 312.625.1438 | c - 312.731.3132
From: Brian Desmond
Sent: Monday, February 06, 2012 10:33 PM
To: 'NT System Admin Issues'
Subject: RE: IOPS's calculations
Those perf counters can be a bit misleading when you're looking at a SAN on=
the backend, though.
Thanks,
Brian Desmond
[email protected]<mailto:[email protected]>
w - 312.625.1438 | c - 312.731.3132
From: Michael B. Smith [mailto:[email protected]]<mailto:[mailto:michae=
[email protected]]>
Sent: Monday, February 06, 2012 3:32 PM
To: NT System Admin Issues
Subject: RE: IOPS's calculations
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]]<mailto:[mailto:mark.rei=
[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 awar=
e 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 ques=
tion is: Many of my current servers are light use. The IOPS that these serv=
ers 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 wor=
king IOPS? That is, what is actually being used? I assume Perfmon would hel=
p, and will need to log over a period of time (I think a week would be abou=
t right, to catch most scenarios). But what counters, and how to analyze th=
ose 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:listmanage=
[email protected]>
with the body: unsubscribe ntsysadmin
~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
---
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><b><span style=3D"color:#002060">OK and now that I r=
ead Mark’s reply to me, never mind.
<o:p></o:p></span></b></p>
<p class=3D"MsoNormal"><b><span style=3D"color:#002060"><o:p> </o:p></=
span></b></p>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#002060">Thanks,<o:p></o:p><=
/span></b></p>
<p class=3D"MsoNormal"><b><span style=3D"color:#002060">Brian Desmond<o:p><=
/o:p></span></b></p>
<p class=3D"MsoNormal"><b><span style=3D"color:#002060">brian@briandesmond.=
com<o:p></o:p></span></b></p>
<p class=3D"MsoNormal"><b><span style=3D"color:#002060"><o:p> </o:p></=
span></b></p>
<p class=3D"MsoNormal"><b><span style=3D"color:#002060">w – 312.625.1=
438 | c – 312.731.3132<o:p></o:p></span></b></p>
</div>
<p class=3D"MsoNormal"><b><span style=3D"color:#002060"><o:p> </o:p></=
span></b></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"font-si=
ze:10.0pt;font-family:"Tahoma","sans-serif"">From:</spa=
n></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
sans-serif""> Brian Desmond
<br>
<b>Sent:</b> Monday, February 06, 2012 10:33 PM<br>
<b>To:</b> 'NT System Admin Issues'<br>
<b>Subject:</b> RE: IOPS's calculations<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"color:#=
002060">Those perf counters can be a bit misleading when you’re looki=
ng at a SAN on the backend, though.<o:p></o:p></span></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"color:#=
002060"><o:p> </o:p></span></b></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"color:#=
002060">Thanks,<o:p></o:p></span></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"color:#=
002060">Brian Desmond<o:p></o:p></span></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"color:#=
002060"><a href=3D"mailto:[email protected]";>[email protected]</a=
><o:p></o:p></span></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"color:#=
002060"><o:p> </o:p></span></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"color:#=
002060">w – 312.625.1438 | c – 312.731.3132<o:p></o=
:p></span></b></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"color:#=
002060"><o:p> </o:p></span></b></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> Michael B. Smith
<a href=3D"mailto:[mailto:[email protected]]";>[mailto:michael@smithcons=
.com]</a>
<br>
<b>Sent:</b> Monday, February 06, 2012 3:32 PM<br>
<b>To:</b> NT System Admin Issues<br>
<b>Subject:</b> RE: IOPS's calculations<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">Disk Reads per second<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">Disk Writes per second<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">Average Disk Queue Length<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">I’d track both logical disk and physical disk.<o:p></o:p></span=
></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D"><o:p> </o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">Regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">Michael B. Smith<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D">Consultant and Exchange MVP<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D"><a href=3D"http://TheEssentialExchange.com";>http://TheEssentialExchan=
ge.com</a><o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"color:#1F=
497D"><o:p> </o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> Reimer, Mark
<a href=3D"mailto:[mailto:[email protected]]";>[mailto:mark.reimer@pra=
irie.edu]</a>
<br>
<b>Sent:</b> Monday, February 06, 2012 3:56 PM<br>
<b>To:</b> NT System Admin Issues<br>
<b>Subject:</b> IOPS's calculations<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Hi folks,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Thanks for all your help=
in the past.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Looking at setting up a =
SAN. From my research, I think one thing to be aware of is current IOPS (di=
sk). 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 th=
ese servers are capable of is much greater than what is actually being used=
.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">So, in order to more pro=
perly 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?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Servers are Windows 2003=
.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Thanks.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Mark Reimer, A+, MCS=
A<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Servers & Networking=
Admin<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Prairie Bible Institute<=
o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Box 4000<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Three Hills, AB T0=
M-2N0<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Canada<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Tel: 403-443-5511, Ext. =
3476<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Fax: 403-443-5540<o:p></=
o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in">Email: <a href=3D"mailto=
:[email protected]">
[email protected]</a><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><a href=3D"http://www.pr=
airie.edu/">www.prairie.edu</a><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p style=3D"margin-left:1.0in">~ Finally, powerful endpoint security that I=
SN'T a resource hog! ~<br>
~ <<a href=3D"http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/"=
>http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/</a>> ~<=
br>
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To manage subscriptions click here: <a href=3D"http://lyris.sunbelt-softwar=
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<p style=3D"margin-left:1.0in">~ Finally, powerful endpoint security that I=
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~ <<a href=3D"http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/"=
>http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/</a>> ~<=
br>
<br>
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To manage subscriptions click here: <a href=3D"http://lyris.sunbelt-softwar=
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