From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id p9AM4k8N207308 for ; Mon, 10 Oct 2011 17:04:46 -0500 Received: from mail.mnsu.edu (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id E0515145CCBD for ; Mon, 10 Oct 2011 15:11:56 -0700 (PDT) Received: from mail.mnsu.edu (Mail.MNSU.EDU [134.29.1.12]) by cuda.sgi.com with ESMTP id c3aitihE5OGziA4F for ; Mon, 10 Oct 2011 15:11:56 -0700 (PDT) Received: from [134.29.32.1] (j3gum-3.ITS.MNSU.EDU [134.29.32.1]) by mail.mnsu.edu (8.13.7/8.13.7) with ESMTP id p9AM4hP2030033 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 10 Oct 2011 17:04:43 -0500 Message-ID: <4E936BFB.5060907@mnsu.edu> Date: Mon, 10 Oct 2011 17:04:43 -0500 From: Jeffrey Hundstad MIME-Version: 1.0 Subject: Re: TRIM on XFS References: <201110071352.20135@zmi.at> <20111007233450.GK3159@dastard> <201110100829.45823@zmi.at> In-Reply-To: List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com On 10/10/2011 03:28 PM, Greg Freemyer wrote: > fitrim is the batch mode. > > To enable realtime discard, add --discard to your mount options. > > Documented athttp://lxr.linux.no/#linux+v3.0.4/Documentation/filesystems/xfs.txt > > To invoke batch mode, simply use fstrim from user space. Hello, I'm also trying to use FITRIM on a simple XFS partition on a spinning magnetic hard drive (remember those). I haven't had much luck. I'm doing this just to get used to the commands when using this against a thinly provisioned disk. I have no idea if this should work in this configuration. On a Debian system with Linux 3.0.0-2-amd64 when I issue: # fstrim / I receive: fstrim: /: FITRIM ioctl failed: Operation not supported With an strace this looks like: open("/", O_RDONLY) = 3 ioctl(3, 0xc0185879, 0x7fff4ea851b0) = -1 EOPNOTSUPP (Operation not supported) My fstrim is from util-linux-2.19.1-5 I'd be happy to try to diagnose this further if people are interested. Any suggestions where I should start would be much appreciated. -- Jeffrey Hundstad _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs