Blammo,<br><br>Just out of curiousity, what case are you storing your 12 drives in? I've been trying to find a good case for RAID and am not having any luck. Thanks!<br><br>Jim<br><br><div><span class="gmail_quote">On 12/12/06,
<b class="gmail_sendername">Blammo</b> <<a href="mailto:blammo.doh@gmail.com">blammo.doh@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On 12/12/06, Paul Hamm <<a href="mailto:paulhamm@verizon.net">paulhamm@verizon.net</a>> wrote:<br>> Interesting ran this on my machine. See the bottom for PC specs. The<br>> system is running 2 instances of FAH. Not a very consistent test.
<br><br>Here's the specs on my main backend:<br><br>tyan mpx dual motherboard, athlon 2400's, 2gig's ram, 3ware 9500S-12<br>(256M cache) in PCI-X 66mhz slot, 11(+1)x160gig SATA drives, HW Raid5,<br>XFS file system. Looks like this:
<br><br>/dev/sda1 1.6T 1.2T 427G 74% /raid<br><br>write 1024 11.789 86.8<br>read 1024 11.648 87.9<br>write 2048 30.056 68.1<br>read 2048 20.27 101.0<br><br>(note, both raw & bonnie benchmarks were run while the system was
<br>fairly busy --- 2 tuners going, 1 remote frontend playing, 1 remote<br>commercial flagging running)<br><br>For raw disk performance, I find a much better tool to use is<br>Bonnie++, which tests things like writes a second / reads a second,
<br>CPU load while this is happening, etc. I run it with the following<br>arguments:<br><br>[root@backend1 ~]# bonnie++ -d /raid/temp -u0 -g0 -n0 -s 2048<br><br>Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
<br> -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--<br>Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP<br>backend1 2G 37034 96 67223 34 39536 19 38805 94 140993 43
442.5 1<br><br>Here's the very best part... I could have left those benchmarks<br>running for 60 minutes straight (done it as a test) and I would not<br>have dropped a video frame, chugged out a recording, or caused any
<br>instability in the box. The HW Raid card (true HW Raid, not psuedo<br>rocket cards) was worth every penny.<br>_______________________________________________<br>mythtv-users mailing list<br><a href="mailto:mythtv-users@mythtv.org">
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