From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stan Hoeppner Subject: Re: RAID5 won't mount after reducing disks from 8 to 6 Date: Wed, 16 Feb 2011 20:43:21 -0600 Message-ID: <4D5C8B49.6050206@hardwarefreak.com> References: <4D5C7A33.90007@turmel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4D5C7A33.90007@turmel.org> Sender: linux-raid-owner@vger.kernel.org To: Phil Turmel Cc: Matt Tehonica , linux-raid@vger.kernel.org List-Id: linux-raid.ids Phil Turmel put forth on 2/16/2011 7:30 PM: > On 02/16/2011 07:24 PM, Matt Tehonica wrote: >> Hi all, >> >> I converted my RAID5 from 8 disks to 6 disks using "mdadm --grow /dev/md0 --array-size" and then "mdadm --grow /dev/md0 --raid-devices=6" and after rebooting, it won't mount. It has been running fine for about a year. File system is XFS. Here is some info on it.... > > Did you resize (shrink) the XFS filesystem first? You can't shrink XFS filesystems. This has been talked about as a possibility in the future, but AFAIK there's no code yet. -- Stan