From mboxrd@z Thu Jan 1 00:00:00 1970 From: "=?iso-8859-1?Q?Michael=20Sallaway?=" Subject: =?iso-8859-1?B?UmU6IDMtd2F5IG1pcnJvcnM=?= Date: Wed, 08 Sep 2010 03:58:52 +0000 Message-ID: <20100908035852.25019.qmail@s217.sureserver.com> Reply-To: "=?iso-8859-1?Q?Michael=20Sallaway?=" Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Return-path: Sender: linux-raid-owner@vger.kernel.org To: Neil Brown Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids > From: Neil Brown > Subject: Re: 3-way mirrors > Sent: 07 Sep '10 22:01 > > This is already possible via the sync_min and sync_max sysfs files. > Write a number of sectors to sync_max and a lower number to sync_min. > Then write 'repair' to 'sync_action'. > When sync_completed reaches sync_max, the repair will pause. > You can then let it continue by writing a larger number to sync_max, or tell > it to finish by writing 'idle' to 'sync_action'. Interesting... will this also work for a rebuild/recovery? If so, how do I start a rebuild from a particular location? (do I just write the sync_min sector before adding the replacement drive to the array, and it will start from there when I add it?) Are all sector counts in terms of a drive sector position, or an array sector position? Thanks, Michael