From owner-freebsd-fs@FreeBSD.ORG  Fri Nov 29 21:49:06 2013
Return-Path: <owner-freebsd-fs@FreeBSD.ORG>
Delivered-To: freebsd-fs@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 002DFD75
 for <freebsd-fs@freebsd.org>; Fri, 29 Nov 2013 21:49:05 +0000 (UTC)
Received: from sam.nabble.com (sam.nabble.com [216.139.236.26])
 (using TLSv1 with cipher AES256-SHA (256/256 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id D3A1F114B
 for <freebsd-fs@freebsd.org>; Fri, 29 Nov 2013 21:49:05 +0000 (UTC)
Received: from [192.168.236.26] (helo=sam.nabble.com)
 by sam.nabble.com with esmtp (Exim 4.72)
 (envelope-from <zaphod@berentweb.com>) id 1VmVvs-00017R-Pl
 for freebsd-fs@freebsd.org; Fri, 29 Nov 2013 13:49:04 -0800
Date: Fri, 29 Nov 2013 13:49:04 -0800 (PST)
From: Beeblebrox <zaphod@berentweb.com>
To: freebsd-fs@freebsd.org
Message-ID: <1385761744784-5864851.post@n5.nabble.com>
In-Reply-To: <09C05F6302494B61A52C1C5065C719CE@multiplay.co.uk>
References: <1385723204127-5864731.post@n5.nabble.com>
 <67B55680E8B7491D9ED6F36ED9E28A49@multiplay.co.uk>
 <1385753577419-5864830.post@n5.nabble.com>
 <09C05F6302494B61A52C1C5065C719CE@multiplay.co.uk>
Subject: Re: ZFS Trim
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.16
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-fs>,
 <mailto:freebsd-fs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-fs/>
List-Post: <mailto:freebsd-fs@freebsd.org>
List-Help: <mailto:freebsd-fs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
 <mailto:freebsd-fs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 29 Nov 2013 21:49:06 -0000

Code in /boot/loader.conf needs to be:
vfs.zfs.trim.enabled = *1*
"0" disables trim.

Very dumb question on my part, and windows related probably but, when
searching the issue answers like this come up: 
https://sort.symantec.com/public/documents/sfha/6.0.1/linux/productguides/html/virtualstore_admin/ch29s05.htm
ZFS is probably immune to this. My question is in context of
"trim.unsupported":

kstat.zfs.misc.zio_trim.bytes: 16388096
kstat.zfs.misc.zio_trim.success: 1668
kstat.zfs.misc.zio_trim.unsupported: 197
kstat.zfs.misc.zio_trim.failed: 0




-----
FreeBSD-11-current_amd64_root-on-zfs_RadeonKMS
--
View this message in context: http://freebsd.1045724.n5.nabble.com/ZFS-Trim-tp5864731p5864851.html
Sent from the freebsd-fs mailing list archive at Nabble.com.