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<p class="MsoNormal"><span style="font-size:12.0pt;color:#1F497D">Thanks Jessica. I guess I’m at the other end of the spectrum. All our servers have RAID 5 setups and I’ve never come across an issue of having downtime. Sure, I’ve had drives go bad but the
systems keep plugging away until I get a replacement drive in. I just don’t know if there is a huge benefit if I move to RAID 10. Thanks for your input!!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#1F497D"><o:p> </o:p></span></p>
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<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""> Jessica D. Dooley [mailto:dooleyje@adamscolibrary.org]
<br>
<b>Sent:</b> Wednesday, December 02, 2015 11:01 AM<br>
<b>To:</b> Jim Lack<br>
<b>Subject:</b> RE: [OPLINTECH] RAID 5 vs. RAID 10 on a file server<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Hi Jim,<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">I can’t speak to the reputed performance benefits of RAID 10, since I’ve never used it, but I have four servers, including two domain controllers, running RAID 5, and I would never choose that configuration again.
I have a virtual host and NAS box running multiple instances of RAID 1, but not configured for striping. RAID 1 with a hot spare would be my configuration of choice in the future. The servers configured with RAID 5 have failed on more than one occasion; even
with backups, it’s a significant interruption. I’d be interested to hear if anyone has committed a large environment to RAID 10, and has seen noticeable performance benefits. Our domain controllers and member servers also double as file storage, with DFS replication
configured. I’d downvote RAID 5 on reliability alone – fwiw.<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">Thanks,<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">Jessica D. Dooley<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">IT Specialist<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Adams County Public Library<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">937-587-2085<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><a href="mailto:dooleyje@adamscolibrary.org">dooleyje@adamscolibrary.org</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<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""> Jim Lack [<a href="mailto:J.Lack@rrpl.org">mailto:J.Lack@rrpl.org</a>]
<br>
<b>Sent:</b> Wednesday, December 02, 2015 10:43 AM<br>
<b>To:</b> <a href="mailto:oplintech@lists.oplin.org">oplintech@lists.oplin.org</a><br>
<b>Subject:</b> [OPLINTECH] RAID 5 vs. RAID 10 on a file server<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">I need to replace my current domain controller with a new server. The server also acts as our main file server. Our current server is set up with two drives, configured
in a RAID one setup which houses just the OS (Windows Server 2008). We have three additional drives set up with RAID 5 which houses all of our user files. We also have an additional drive as a global hot spare.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">I’m wrestling with the option of using RAID 10 on our new server (someone suggested it). Do I sacrifice a couple of drives in RAID 10 for performance or should I just
stick with the RAID 1 (OS) and RAID 5 configuration? I’m just wondering if there will be a big benefit going with RAID 10. There’s a lot of smart people on this list and I value your opinions. Let me know your thoughts
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Thank You,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Jim Lack<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">Technology Support Manager<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">Rocky River Public Library<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">1600 Hampton Rd.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">Rocky River, OH 44116<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">440-895-3765<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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