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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks Joel,<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'>That’s just what I was looking for!<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>
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<p class=MsoAutoSig><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>Jim <o:p></o:p></span></font></p>
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<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>
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<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'>
sgvlug-bounces@sgvlug.net [mailto:sgvlug-bounces@sgvlug.net] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Joel Witherspoon<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, July 13, 2009 4:40
PM<br>
<b><span style='font-weight:bold'>To:</span></b> SGVLUG Discussion List.<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [SGVLUG] Suggestions
for business application server</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Jim,<br>
<br>
I can't comment with statistics, but I've had a good run with SATA in our MSSQL
environment. We replaced our SCSI servers with SATA servers and the reliability
is great.<br>
<br>
In the last year, I've only purchased servers with RAID 10. We've eliminated
the IO issues that we had with RAID 5. Again it's RAID 10 with SATA; moderate
virtualization.<br>
<br>
We have OS only servers that run RAID 5. We use a SAN for volumes. The SAN is
RAID 10.<br>
<br>
When data has not been modified over 9 months we move it to a NAS box for
archival (NAS-LITE). It's not the best way, as there is not governance for data
retrieval, but the NAS box is a 4TB RAID 10 HP ML 370 that I've hulked up just
for storage. If someone is looking for a file, we can usually find it with no
problem. Our desire is to purchase a second SAN for data progression; at least
there we'll have logic for retrieval.<br>
<br>
<br>
<br>
<br>
<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Mon, Jul 13, 2009 at 1:54 PM, DYN: Jim Workman <<a
href="mailto:JimW@dynashoe.com">JimW@dynashoe.com</a>> wrote:<o:p></o:p></span></font></p>
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<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>We are planning to replace our current Dell RHEL 4 server
(keeping the old server as a nightly-rsynced hot backup).</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>I’m looking for suggestions on some questions from those who
have recent configuration experience.</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Current system has 8 SCSI 73GB 15k drives in RAID5.</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Has anyone replaced SCSI with SATA in high-reliability
environment. (Non-SQL files with lots of record-based I/O.)</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>I have read that RAID5 is less preferable to RAID10 or other
configurations due to its slowness.</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Also read that it is better to not keep the OS on the main RAID
array.</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Are there significant advantages to go to RHEL 5, and can the
backup system stay RHEL 4?</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>We are currently making nightly full backups onto DLT VS1
tapes. (2 week rotation and archiving the Month-End tape.) </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Because tape drive & tapes are relatively expensive, I am
investigating a cron-driven backup to USB hard-drives as a replacement.</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Anyone doing this?</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>We have an option to make incremental backups to an
enterprise-level hard-drive archive system, but I have concerns about restoring
individual files from such a system. Has anyone dealt with data recovery
from EMCsquared?</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Experience-based comments to any of the issues above are
welcome.</span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><o:p></o:p></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'> </span></font><font color="#888888"><span
style='color:#888888'><o:p></o:p></span></font></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Jim Workman</span></font><font color="#888888"><span
style='color:#888888'><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
<br clear=all>
<br>
-- <br>
Joel Witherspoon<br>
<br>
LinkedIn: <a href="http://www.linkedin.com/in/jcwitherspoon">http://www.linkedin.com/in/jcwitherspoon</a><br>
<br>
Facebook: <a href="http://www.facebook.com/joel.witherspoon">http://www.facebook.com/joel.witherspoon</a><br>
<br>
Skype: joel.witherspoon<o:p></o:p></span></font></p>
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