Date: Mon, 24 Sep 2012 17:07:08 +0100 From: Bob Bishop <rb@gid.co.uk> To: Steven Hartland <killing@multiplay.co.uk> Cc: freebsd-fs@freebsd.org, freebsd-current@freebsd.org Subject: Re: ZFS TRIM support committed to HEAD. Message-ID: <07C554A3-5957-4664-8E0F-D7C6885C5EAF@gid.co.uk> In-Reply-To: <20CC6F2BF08D47ED802318697542A15D@multiplay.co.uk> References: <20120923195357.GO1454@garage.freebsd.pl> <1735E492-3C3C-491A-82E2-884E976B4BC4@gid.co.uk> <20120923222520.GS1454@garage.freebsd.pl> <D637D49E-27B3-4169-BC27-D5A7409040B9@gid.co.uk> <20CC6F2BF08D47ED802318697542A15D@multiplay.co.uk>
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Hi, On 24 Sep 2012, at 16:55, Steven Hartland wrote: > ----- Original Message ----- From: "Bob Bishop" <rb@gid.co.uk> > To: "Pawel Jakub Dawidek" <pjd@freebsd.org> > Cc: <freebsd-current@freebsd.org>; <freebsd-fs@freebsd.org>; "Steven = Hartland" <killing@multiplay.co.uk> > Sent: Monday, September 24, 2012 3:17 PM > Subject: Re: ZFS TRIM support committed to HEAD. >=20 >=20 >> Hi, >> On 23 Sep 2012, at 23:25, Pawel Jakub Dawidek wrote: >>> I have a patch against stable/8, but not stable/9: >>> http://people.freebsd.org/~pjd/patches/zfstrim8.patch >> Running with that in an otherwise 8-STABLE GENERIC amd64 kernel, I'm = getting: >> kstat.zfs.misc.zio_trim.zio_trim_bytes: 0 >> kstat.zfs.misc.zio_trim.zio_trim_success: 0 >> kstat.zfs.misc.zio_trim.zio_trim_unsupported: 0 >> kstat.zfs.misc.zio_trim.zio_trim_failed: 2742 >> which doesn't look like it's working. The SSDs are: >> ad4: 114473MB <ADATA SSD S510 120GB 3.3.2> at ata2-master UDMA100 = SATA 3Gb/s >> ad6: 114473MB <ADATA SSD S510 120GB 3.3.2> at ata3-master UDMA100 = SATA 3Gb/s >> Any suggestions? Thanks >=20 > Don't think ad supports TRIM, switch to ada (ahci) and you should be = good. >=20 > Although I'm surprised your seeing that many reported failures as it = should > have disabled it on a pool level after the first few failures. >=20 > Is it still increasing? Yes I'll try switching to ahci -- Bob Bishop rb@gid.co.uk
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