<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0in;
margin-right:0in;
margin-bottom:0in;
margin-left:.5in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.EmailStyle20
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.EmailStyle22
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.Section1
{page:Section1;}
/* List Definitions */
@list l0
{mso-list-id:234318527;
mso-list-type:hybrid;
mso-list-template-ids:-216106238 67698689 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;}
@list l0:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Symbol;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=EN-US link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal><span style='color:#1F497D'>I mean, unless you have a
virtual server like SQL or Exchange pulling heavy loads, there is no need for
RDM. The two purposes for which RDM was created are:<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:Symbol;color:#1F497D'><span style='mso-list:Ignore'>·<span
style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='color:#1F497D'>Maximize performance
for heavy loads by eliminating VMFS overhead.<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:Symbol;color:#1F497D'><span style='mso-list:Ignore'>·<span
style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='color:#1F497D'>Allow for
physical-to-virtual clustering or standby sparing, where the physical machine cannot
read a VMFS partition.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Unless you have one of those
scenarios (only you can truly judge a “heavy” load), then it seems
unnecessarily complicated. We have a 30GB Exchange DB on a SATA VMFS volume
with no performance issues and about 125 users (50-75 concurrent at any one
time).<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='color:#1F497D'>Dan<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
discuss-bounces@itdiscuss.org [mailto:discuss-bounces@itdiscuss.org] <b>On
Behalf Of </b>blloyd@buskercom.com<br>
<b>Sent:</b> Wednesday, August 13, 2008 11:30 AM<br>
<b>To:</b> discuss@itdiscuss.org<br>
<b>Subject:</b> Re: [itdiscuss] ESX and iSCSI<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>What do you mean “lighter
loads”?<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p style='margin-bottom:12.0pt'><b><span style='font-size:14.0pt;color:navy'>Bill
Lloyd</span></b><span style='color:navy'> </span><span style='font-size:11.0pt;
color:navy'><br>
IT Manager</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><img
width=149 height=46 id="_x0000_i1026" src="cid:image001.jpg@01C8FD4C.2FDFD840"><o:p></o:p></span></p>
<p><span style='font-size:11.0pt;color:black'>5375 Oakbrook Parkway<br>
Norcross, GA 30093<br>
Phone: 770-417-1604<br>
Cell: 404-379-6963</span><o:p></o:p></p>
<p><em><span style='font-size:11.0pt;color:navy'>blloyd@buskercom.com</span></em><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:7.0pt;font-family:"Arial","sans-serif";
color:navy'>This email and any accompanying attachments may contain
confidential and proprietary information. If you are not the intended
recipient, you are requested to delete this entire communication immediately.
Emails cannot be guaranteed to be secure or free of errors or viruses. The
sender does not accept any liability or responsibility for any problems that
may result from emails you receive.</span><o:p></o:p></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> discuss-bounces@itdiscuss.org
[mailto:discuss-bounces@itdiscuss.org] <b>On Behalf Of </b>Dan Barber<br>
<b>Sent:</b> Wednesday, August 13, 2008 11:50 AM<br>
<b>To:</b> 'IT Discussion Forum'<br>
<b>Subject:</b> Re: [itdiscuss] ESX and iSCSI<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>I don’t use CHAP, but just use a
separate VLAN, and secure that VLAN so that there is no access to it, physical
or otherwise, without the appropriate measures. That way the storage is safe. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>We don’t use RDM, simply because
there seems to be no need for lighter loads. Unless you are hitting a very
high-speed or very large database, you should be okay.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='color:#1F497D'>Dan<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
discuss-bounces@itdiscuss.org [mailto:discuss-bounces@itdiscuss.org] <b>On
Behalf Of </b>blloyd@buskercom.com<br>
<b>Sent:</b> Wednesday, August 13, 2008 8:10 AM<br>
<b>To:</b> discuss@itdiscuss.org<br>
<b>Subject:</b> [itdiscuss] ESX and iSCSI<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have an opinion question to ask those of you who are using
ESX with an iSCSI SAN. Do you think it is better to use raw disk mapping
for your VMs or VMFS partitions? I am starting fresh with a new ESX
server and trying to start right. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Another question for you is about CHAP authentication.
I am able to get my ESX system to connect as long as I don’t use CHAP.
Anyone have thoughts about why this might be the case?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<p style='margin-bottom:12.0pt'><b><span style='font-size:14.0pt;color:navy'>Bill
Lloyd</span></b><span style='color:navy'> </span><span style='font-size:11.0pt;
color:navy'><br>
IT Manager</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><img
width=149 height=46 id="_x0000_i1025" src="cid:image001.jpg@01C8FD4C.2FDFD840"><o:p></o:p></span></p>
<p><span style='font-size:11.0pt;color:black'>5375 Oakbrook Parkway<br>
Norcross, GA 30093<br>
Phone: 770-417-1604<br>
Cell: 404-379-6963</span><o:p></o:p></p>
<p><em><span style='font-size:11.0pt;color:navy'>blloyd@buskercom.com</span></em><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:7.0pt;font-family:"Arial","sans-serif";
color:navy'>This email and any accompanying attachments may contain
confidential and proprietary information. If you are not the intended recipient,
you are requested to delete this entire communication immediately. Emails
cannot be guaranteed to be secure or free of errors or viruses. The sender does
not accept any liability or responsibility for any problems that may result
from emails you receive.</span><o:p></o:p></p>
</div>
</body>
</html>