From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q5JCHHuj086216 for ; Tue, 19 Jun 2012 07:17:17 -0500 Received: from ixe-mta-29.emailfiltering.com (ixe-mta-29-tx.emailfiltering.com [194.116.199.160]) by cuda.sgi.com with ESMTP id 2rASnkevF7yOOgGL for ; Tue, 19 Jun 2012 05:17:15 -0700 (PDT) Message-ID: <4FE06DC7.2060204@pml.ac.uk> Date: Tue, 19 Jun 2012 13:17:11 +0100 From: Mike Grant MIME-Version: 1.0 Subject: Re: Recommendation on XFS Filesystem Creation, Lefthand P4500, iSCSI ? References: <4FE050C2.8060601@fiton.is> In-Reply-To: <4FE050C2.8060601@fiton.is> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1"; Format="flowed" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: =?ISO-8859-1?Q?Svavar_=D6rn_Eysteinsson?= Cc: xfs@oss.sgi.com Hi Svavar, On 06/19/2012 11:13 AM, Svavar =D6rn Eysteinsson wrote: > We recently purchased HP Lefthand 4500 G2 24TB iSCSI SAN Box. > The Box is configured in RAID6. (and yes, we are going to expand that with > another boxes in near future). > I need to create a 7TB volume at the start, and grow it in near future. We have a couple of NAS servers (just direct disk connection, not iSCSI) = with XFS filesystems up to ~30TB, but didn't do anything special for = those (just defaults on everything, iirc). The only problem we had was with filesystems bigger than that, where we = get kernel crashes due to XFS overflowing the stack. Apparently this = may be worse if you NFS-share XFS layered over LVM (more stuff on the = stack, I guess), but I imagine you'd be fine with 7TB. Cheers, Mike.

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