From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932377AbWAQJzW (ORCPT ); Tue, 17 Jan 2006 04:55:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932376AbWAQJzW (ORCPT ); Tue, 17 Jan 2006 04:55:22 -0500 Received: from ookhoi.xs4all.nl ([213.84.114.66]:59530 "EHLO favonius.humilis.net") by vger.kernel.org with ESMTP id S932352AbWAQJzV (ORCPT ); Tue, 17 Jan 2006 04:55:21 -0500 Date: Tue, 17 Jan 2006 10:55:31 +0100 From: Sander To: NeilBrown Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, "Steinar H. Gunderson" Subject: Re: [PATCH 005 of 5] md: Final stages of raid5 expand code. Message-ID: <20060117095531.GB27262@localhost.localdomain> Reply-To: sander@humilis.net References: <20060117174531.27739.patches@notabene> <1060117065635.27881@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1060117065635.27881@suse.de> X-Uptime: 10:26:31 up 61 days, 25 min, 10 users, load average: 2.57, 2.20, 1.86 User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org NeilBrown wrote (ao): > +config MD_RAID5_RESHAPE Would this also be possible for raid6? > + bool "Support adding drives to a raid-5 array (highly experimental)" > + depends on MD_RAID5 && EXPERIMENTAL > + ---help--- > + A RAID-5 set can be expanded by adding extra drives. This > + requires "restriping" the array which means (almost) every > + block must be written to a different place. > + > + This option allows this restiping to be done while the array ^^^^^^^^^ restriping > + is online. However it is VERY EARLY EXPERIMENTAL code. > + In particular, if anything goes wrong while the restriping > + is happening, such as a power failure or a crash, all the > + data on the array will be LOST beyond any reasonable hope > + of recovery. > + > + This option is provided for experimentation and testing. > + Please to NOT use it on valuable data with good, tested, backups. ^^ ^^^^ do without Thanks a lot for this feature. I'll try to find a spare computer to test this on. Thanks! Kind regards, Sander -- Humilis IT Services and Solutions http://www.humilis.net