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Date: Sun, 20 Jan 2013 01:39:44 -0800
From: matt <sendtomatt@gmail.com>
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Subject: ZFS Trim on mps?
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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