Date: Sat, 15 May 2010 09:14:45 +0200 From: Pieter de Boer <pieter@thedarkside.nl> To: Terry Kennedy <TERRY@tmk.com> Cc: freebsd-stable@FreeBSD.org Subject: Re: Read / write timeouts on SATA disks connected to ICH9 Message-ID: <4BEE49E5.1040005@thedarkside.nl> In-Reply-To: <01NN4A2NF0M4006QOF@tmk.com> References: <01NN4A2NF0M4006QOF@tmk.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi Terry, > I have a bunch of R300's here. From one that is using the on-board SATA > and 2 drives in a gmirror setup (very similar to the OP) after 18 hours > of uptime: > > [0:2] speedtest:~> vmstat -i > interrupt total rate > irq23: atapci0 254116 3 Interesting. Which version of FreeBSD is this system running? I guess you didn't experience any of the timeouts I'm seeing? > I also have another R300 with Dell's "SAS 6/iR" card (a re-branded LSI > 1068-something, seen as "mpt" by FreeBSD). While Dell only sells that as > part of a package deal with the hot-swap backplane and redundant power > supplies, there's no reason you couldn't pick one up on eBay and add it > yourself. You'll need some sort of breakout cable to get from the big > connector on the SAS 6 to individual SATA ports. Yeah, this R300 was bought second-hand and unfortunately the owner pulled the RAID card out. It's something to consider, getting one of those cards. Do you use the RAID-features of the drive and if so, does that work well? I'm a bit hesitant to use hardware raid; it would be a big plus if the RAID disks could also be used stand-alone if need be (which is easy with gmirror because of its metadata being stored in the drive's last sector). Thanks, Pieter
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4BEE49E5.1040005>