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Date:      Sun, 20 Jan 2013 01:39:44 -0800
From:      matt <sendtomatt@gmail.com>
To:        freebsd-current@FreeBSD.org
Subject:   ZFS Trim on mps?
Message-ID:  <50FBBB60.5070702@gmail.com>

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Should I be getting trim with ZFS on an mps device?

Disks are SATA ssd (830s), only "unsupported" is being reported.
Do I need to set the cam "da" delete method to something (unmap?), or is
ZFS trim only supported on ahci sata controllers?

vfs.zfs.trim_disable: 0
vfs.zfs.trim_txg_limit: 64
kstat.zfs.misc.zio_trim.bytes: 0
kstat.zfs.misc.zio_trim.success: 0
kstat.zfs.misc.zio_trim.unsupported: 281

Matt



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