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Date: Fri, 2 Aug 2013 09:27:59 -0500
From: Dan Nelson <dnelson@allantgroup.com>
To: John Andreasson <andreassonjohn@gmail.com>
Subject: Re: TRIM on ZFS mirror
Message-ID: <20130802142759.GD57606@dan.emsphone.com>
References: <CAHRhq0rSdt+yvdF+R=Er5B=HiaK8UCMeDOGPcPiWP9937mki0Q@mail.gmail.com>
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In the last episode (Aug 02), John Andreasson said:
> I read that FreeBSD 9.2 will bring TRIM to ZFS. Does anyone know if this
> works even if the zpool is a mirror?

The vdev type doesn't matter.  It'll work on plain disks, mirrors, and
raidzs.  If for some reason you have a pool built on geom mirrors, it'll
work on that, too, since gmirror forwards BIO_DELETE requests to its
components.

-- 
	Dan Nelson
	dnelson@allantgroup.com