Date: Sat, 22 Jul 2006 19:16:26 +0100 From: Richard Collyer <richard@firebadger.net> To: freebsd-questions@freebsd.org Subject: Slow Write Performance on 3ware controller Message-ID: <44C26B7A.30200@firebadger.net>
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Hello, I recently installed a 3ware 9500S-12 along with 3 x 250GB Seagate 7200.10 Drives. I am getting very poor read/write performance on this array that I have set up (RAID5 - 64K stripe) Reading to the 2 mirrored drives that I have on a 3ware 7006-2 I can get 8MB/sec over samba which is what I expect. From the new array I am getting 4MB/sec. To rule out samba I did a file copy from one array to the other an averaged 3.8MB/sec which I assume is being limited by the new array. Any ideas where I can check to see if there are problems and what are the first steps / common things that people miss when adding drives. In short I... a) installed the drive b) disk partitioned using /stand/sysinstall c) labelled using the same d) edited /etc/drivetabthingy to mount the drive Anyone else have any other suggestions on what I can check? Cheers Richard
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