Many of you have asked, so here is my Hardware Description for the original post. Sorry It may be a bit messy:<br><br>Drive enclosures:<br>6x500GB Hard Drives: <a href="http://www.newegg.com/Product/Product.aspx?Item=N82E16822145137">http://www.newegg.com/Product/Product.aspx?Item=N82E16822145137</a><br>
6x250GB Hard Drives: <a href="http://www.newegg.com/Product/Product.aspx?Item=N82E16822145087">http://www.newegg.com/Product/Product.aspx?Item=N82E16822145087</a><br>12xHard Drive Enclosures: <a href="http://www.newegg.com/Product/Product.aspx?Item=N82E16817121113">http://www.newegg.com/Product/Product.aspx?Item=N82E16817121113</a><br>
Description:<br>I have these screwed together using plexiglass on the sides, so they sit in three separate stacks of 4 enclosures each. They are just sitting side-by-side on a shelf.<br><br>Power:<br>The external drives are powered by a standard ATX power supply that I had lying around.<br>
<br>Machine:<br>CPU: Intel Pentium D 2.80GHz overclocked to 3.0GHz<br>MEM: 1GB<br>VIDEO: nVidia Corporation GeForce 6500 (rev a1)<br><br>PCI1<br>Rosewill Silicon Image PCI 4 SATA ports Controller Card<br><a href="http://www.newegg.com/Product/Product.aspx?Item=N82E16816132006">http://www.newegg.com/Product/Product.aspx?Item=N82E16816132006</a><br>
-2 of the external sata headers are used<br>-2 of the internal sata headers are connected to spoon below<br><br>PCI2<br>Internal to External 8 port "spoon"<br><a href="http://www.macgurus.com/productpages/sata/satakits.php">http://www.macgurus.com/productpages/sata/satakits.php</a> (Near the bottom right)<br>
Description:<br>-4 of my onboard sata headers connect to 4 of the internal spoon ports<br>-2 of the internal sata headers on PCI2 connect to 2 of the internal spoon ports<br>-2 of the internal sata headers on PCI1 connect to 2 of the internal spoon ports<br>
<br>PCI3<br>Rosewill Silicon Image PCI 4 SATA ports Controller Card<br><a href="http://www.newegg.com/Product/Product.aspx?Item=N82E16816132006">http://www.newegg.com/Product/Product.aspx?Item=N82E16816132006</a><br>Description:<br>
-2 of the external sata headers are used<br>-2 of the internal sata headers are connected to spoon below<br><br>PCI5<br>Was a tuner that was recently moved to another backend machine...<br><br><br># mdadm --detail /dev/md0<br>
/dev/md0:<br> Version : 00.90.03<br> Creation Time : Fri Jun 1 17:37:59 2007<br> Raid Level : raid5<br> Array Size : 2441919680 (2328.80 GiB 2500.53 GB)<br> Device Size : 488383936 (465.76 GiB 500.11 GB)<br>
Raid Devices : 6<br> Total Devices : 6<br>Preferred Minor : 0<br> Persistence : Superblock is persistent<br><br> Update Time : Tue Jun 3 14:17:14 2008<br> State : clean<br> Active Devices : 6<br>Working Devices : 6<br>
Failed Devices : 0<br> Spare Devices : 0<br><br> Layout : left-symmetric<br> Chunk Size : 64K<br><br> UUID : <br> Events : 0.191012<br><br> Number Major Minor RaidDevice State<br> 0 8 17 0 active sync /dev/sdb1<br>
1 8 33 1 active sync /dev/sdc1<br> 2 8 49 2 active sync /dev/sdd1<br> 3 8 177 3 active sync /dev/sdl1<br> 4 8 193 4 active sync /dev/sdm1<br>
5 8 65 5 active sync /dev/sde1<br><br><br># mdadm --detail /dev/md1<br>/dev/md1:<br> Version : 00.90.03<br> Creation Time : Mon Aug 28 20:41:44 2006<br> Raid Level : raid5<br> Array Size : 1220979520 (1164.42 GiB 1250.28 GB)<br>
Device Size : 244195904 (232.88 GiB 250.06 GB)<br> Raid Devices : 6<br> Total Devices : 6<br>Preferred Minor : 1<br> Persistence : Superblock is persistent<br><br> Update Time : Tue Jun 3 11:25:25 2008<br> State : clean<br>
Active Devices : 6<br>Working Devices : 6<br> Failed Devices : 0<br> Spare Devices : 0<br><br> Layout : left-symmetric<br> Chunk Size : 64K<br><br> UUID : <br> Events : 0.133480<br><br> Number Major Minor RaidDevice State<br>
0 8 81 0 active sync /dev/sdf1<br> 1 8 97 1 active sync /dev/sdg1<br> 2 8 129 2 active sync /dev/sdi1<br> 3 8 113 3 active sync /dev/sdh1<br>
4 8 161 4 active sync /dev/sdk1<br> 5 8 145 5 active sync /dev/sdj1<br><br><br><br><br><br><br><br><div class="gmail_quote">On Tue, Jun 3, 2008 at 2:37 PM, John Drescher <<a href="mailto:drescherjm@gmail.com">drescherjm@gmail.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="Ih2E3d">> I am using some 9 month old 500GB WD drives and I have not had any issues with<br>
> them spinning down, and they have been idle for fairly long periods of time.<br>
><br>
</div>I have had absolutely ill effects spinning down my Segate 7200.10s.<br>
And I have had a 5 hour spin down on for more than a year. When I<br>
access the filesystem the drives will spin back up and be available in<br>
a few seconds.<br>
<font color="#888888"><br>
John<br>
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