From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Smith Subject: Re: Shrinking number of devices on a RAID-10 (near 2) array Date: Thu, 28 Aug 2014 09:53:53 +0000 Message-ID: <20140828095352.GM11855@bitfolk.com> References: <20140823163110.GE11855@bitfolk.com> <20140824130939.461501b4@notabene.brown> <20140824143944.GC19874@bitfolk.com> <20140825103234.GH11855@bitfolk.com> <20140825212614.5be558c9@notabene.brown> <20140825113402.GF19874@bitfolk.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20140825113402.GF19874@bitfolk.com> Sender: linux-raid-owner@vger.kernel.org To: NeilBrown , linux-raid@vger.kernel.org List-Id: linux-raid.ids Hi Neil, Any ideas on the below? Not in a huge rush but at some point I might have to just re-create the array and copy data back. Cheers, Andy On Mon, Aug 25, 2014 at 11:34:03AM +0000, Andy Smith wrote: > Hi Neil, > > On Mon, Aug 25, 2014 at 09:26:14PM +1000, NeilBrown wrote: > > What does "mdadm --examine" on one of the devices report now that it is v1.0? > > > > Particularly interested in the "Unused Space :" line. > > /dev/sda3: > Magic : a92b4efc > Version : 1.0 > Feature Map : 0x0 > Array UUID : 3905b303:ca604b72:be5949c4:ab051b7a > Name : 2 > Creation Time : Sun Jun 4 08:18:59 2006 > Raid Level : raid10 > Raid Devices : 6 > > Avail Dev Size : 618726528 (295.03 GiB 316.79 GB) > Array Size : 928089792 (885.10 GiB 950.36 GB) > Super Offset : 618727392 sectors > Unused Space : before=0 sectors, after=864 sectors > State : active > Device UUID : e30176be:81a57e84:1f2aa206:9515150f > > Update Time : Sun Aug 24 14:29:15 2014 > Checksum : bd599c72 - correct > Events : 1 > > Layout : near=2 > Chunk Size : 64K > > Device Role : Active device 5 > Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing) > > All other devices report same (apart from UUID/checksum/role).