<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<!-- Template generated by Exclaimer Mail Disclaimers on 03:07:24 Friday, 23 September 2011 -->
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style type="text/css">P.4b2051ca-1e82-4497-9f71-f78f56dade9c {
MARGIN: 0cm 0cm 0pt
}
LI.4b2051ca-1e82-4497-9f71-f78f56dade9c {
MARGIN: 0cm 0cm 0pt
}
DIV.4b2051ca-1e82-4497-9f71-f78f56dade9c {
MARGIN: 0cm 0cm 0pt
}
TABLE.4b2051ca-1e82-4497-9f71-f78f56dade9cTable {
MARGIN: 0cm 0cm 0pt
}
DIV.Section1 {
page: Section1
}
</style>
<meta name="Generator" content="Microsoft Word 11 (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: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:12.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:blue;
text-decoration:underline;}
p
{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";}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:Arial;
color:navy;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;}
div.Section1
{page:Section1;}
-->
</style>
</head>
<body lang="EN-US" link="blue" vlink="blue">
<p class="4b2051ca-1e82-4497-9f71-f78f56dade9c"></p>
<div class="Section1">
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">rpm = revolutions per minute rather than RedHat Package Manager in this context.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">In our largest disk array we have SSD, SAS and SATA. The SAS are 10,000 RPM but the SATA are only 7200 RPM so the former are faster.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<div>
<div class="MsoNormal" align="center" style="text-align:center"><font size="3" face="Times New Roman"><span style="font-size:12.0pt"></span></font></div>
</div>
</div>
<p></p>
<p class="4b2051ca-1e82-4497-9f71-f78f56dade9c"> </p>
<p class="4b2051ca-1e82-4497-9f71-f78f56dade9c"> </p>
<p class="4b2051ca-1e82-4497-9f71-f78f56dade9c"></p>
<div class="Section1">
<div>
<div class="MsoNormal" align="center" style="text-align:center"><font size="3" face="Times New Roman"><span style="font-size:12.0pt">
<hr size="2" width="100%" align="center" tabindex="-1">
</span></font></div>
<p class="MsoNormal"><b><font size="2" face="Tahoma"><span style="font-size:10.0pt;
font-family:Tahoma;font-weight:bold">From:</span></font></b><font size="2" face="Tahoma"><span style="font-size:10.0pt;font-family:Tahoma"> ale-bounces@ale.org [mailto:ale-bounces@ale.org]
<b><span style="font-weight:
bold">On Behalf Of </span></b>Jim Kinney<br>
<b><span style="font-weight:bold">Sent:</span></b> Friday, September 23, 2011 2:57 PM<br>
<b><span style="font-weight:bold">To:</span></b> Atlanta Linux Enthusiasts<br>
<b><span style="font-weight:bold">Subject:</span></b> Re: [ale] RAID 10 Question</span></font><o:p></o:p></p>
</div>
<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt"><o:p> </o:p></span></font></p>
<p><font size="3" face="Times New Roman"><span style="font-size:12.0pt">$(x4 1 TB sata) < $(x1 1TB sas)<br>
Both are 3Gbps but sas has faster rpm and higher heat tolerance.<br>
But sata is easier to replace before failure due to cost. Replace every 4 years with a 5 year warranty drive and send it to a desktop.<o:p></o:p></span></font></p>
<div>
<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt">On Sep 23, 2011 2:50 PM, "Greg Clifton" <<a href="mailto:gccfof5@gmail.com">gccfof5@gmail.com</a>> wrote:<br type="attribution">
> For a relatively small (2TB capacity) RAID 10 array comprised of 4x1TB hard<br>
> drives, is there any performance/reliability advantage in using SAS drives<br>
> vs SATA drives?<br>
> <br>
> Thanks,<br>
> GC<o:p></o:p></span></font></p>
</div>
</div>
<p></p>
<p class="4b2051ca-1e82-4497-9f71-f78f56dade9c"> </p>
<p class="4b2051ca-1e82-4497-9f71-f78f56dade9c"> </p>
<p class="4b2051ca-1e82-4497-9f71-f78f56dade9c"> </p>
<p style="MARGIN: 0in 0in 0pt; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class="MsoNormal">
<span style="FONT-FAMILY: Arial; FONT-SIZE: 10pt"><o:p></o:p></span></p>
<p><font face="Arial"><font style="FONT-FAMILY: Arial; FONT-SIZE: 10pt" size="2">Athena<font size="1">®</font>, Created for the Cause</font><font color="black" size="1">™</font></font></p>
<p><font size="2" face="Arial">Making a Difference in the Fight Against Breast Cancer</font></p>
<p style="MARGIN: 0in 0in 0pt; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto" class="MsoNormal">
<i><span style="FONT-FAMILY: Arial; COLOR: green; FONT-SIZE: 7.5pt; mso-bidi-font-size: 12.0pt">Please consider our environment before printing this e-mail or attachments.</span></i>
</p>
<p style="MARGIN: 0in 0in 0pt" class="MsoNormal"><span style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">----------------------------------<br>
CONFIDENTIALITY NOTICE: This e-mail may contain privileged or confidential information and is for the sole use of the intended recipient(s). If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information
is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that you have received the message in error, and delete it. Thank you.<br>
----------------------------------</span><span style="FONT-FAMILY: 'Courier New'; FONT-SIZE: 9pt"><o:p></o:p></span></p>
<p> </p>
</body>
</html>