From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: Can't add device to raid 1 array - no error message Date: Sun, 4 Mar 2012 08:11:59 +1100 Message-ID: <20120304081159.14d3c937@notabene.brown> References: <4F526930.1080509@nuclearwinter.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/fM0aGaaaW.9a9K=uFgx5z1T"; protocol="application/pgp-signature" Return-path: In-Reply-To: <4F526930.1080509@nuclearwinter.com> Sender: linux-raid-owner@vger.kernel.org To: Larkin Lowrey Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids --Sig_/fM0aGaaaW.9a9K=uFgx5z1T Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Sat, 03 Mar 2012 12:55:44 -0600 Larkin Lowrey wrote: > I am trying to replace the two small drives in my raid1 mirror with two > larger drives. I failed and removed the first drive and am now trying to > add a new larger drive to take its place. The add command completes > without any obvious error but the new dive is not added to the array. > What am I missing? >=20 > A superblock is written on the new array partition but its role is > 'spare' and it does not show up in /proc/mdstat. >=20 > Kernel 3.2.7-1.fc16.x86_64 > mdadm - v3.2.3 - 23rd December 2011 >=20 > It appears that mdadm does detect an error but doesn't say anything > about it: >=20 > # mdadm --manage /dev/md0 --add /dev/sdz2 ; echo $? > 1 Strange. Does adding "--verbose" produce more messages? Maybe run mdadm under 'strace' and see exactly what is failing. NeilBrown >=20 > I do see the following in the logs: >=20 > [ 2913.075120] scsi_verify_blk_ioctl: 74 callbacks suppressed > [ 2913.080708] mdadm: sending ioctl 1261 to a partition! > ... > [ 2913.137556] mdadm: sending ioctl 1261 to a partition! >=20 > # mdadm -D /dev/md0 > /dev/md0: > Version : 1.2 > Creation Time : Tue Jan 10 20:28:20 2006 > Raid Level : raid1 > Array Size : 15634360 (14.91 GiB 16.01 GB) > Used Dev Size : 15634360 (14.91 GiB 16.01 GB) > Raid Devices : 2 > Total Devices : 1 > Persistence : Superblock is persistent >=20 > Intent Bitmap : Internal >=20 > Update Time : Sat Mar 3 12:43:41 2012 > State : active, degraded > Active Devices : 1 > Working Devices : 1 > Failed Devices : 0 > Spare Devices : 0 >=20 > Name : ***.*****.***:0 (local to host ***.*****.***) > UUID : b5d9fcd0:5baaaff8:492c3e4b:22636aac > Events : 499 >=20 > Number Major Minor RaidDevice State > 0 0 0 0 removed > 1 8 130 1 active sync /dev/sdi2 >=20 > # mdadm -E /dev/sdz2 > /dev/sdz2: > Magic : a92b4efc > Version : 1.2 > Feature Map : 0x1 > Array UUID : b5d9fcd0:5baaaff8:492c3e4b:22636aac > Name : ***.*****.***:0 (local to host ***.*****.***) > Creation Time : Tue Jan 10 20:28:20 2006 > Raid Level : raid1 > Raid Devices : 2 >=20 > Avail Dev Size : 83884032 (40.00 GiB 42.95 GB) > Array Size : 31268720 (14.91 GiB 16.01 GB) > Used Dev Size : 31268720 (14.91 GiB 16.01 GB) > Data Offset : 2048 sectors > Super Offset : 8 sectors > State : clean > Device UUID : 50670e17:d3e5fe82:e572e701:7460bcc4 >=20 > Internal Bitmap : 8 sectors from superblock > Update Time : Sat Mar 3 12:41:18 2012 > Checksum : 4bb687db - correct > Events : 0 >=20 >=20 > Device Role : spare > Array State : .A ('A' =3D=3D active, '.' =3D=3D missing) >=20 > ]# cat /proc/mdstat > Personalities : [raid1] [raid6] [raid5] [raid4] > md2 : active raid5 sdv2[9] sdo2[1] sdx2[4] sdl2[5] sdw2[10] sdp2[2] > sdk2[6] sdm2[8] sdq2[3] sdn2[7] sdr2[0] > 6641912320 blocks level 5, 128k chunk, algorithm 2 [11/11] > [UUUUUUUUUUU] >=20 > md1 : active raid5 sdx1[6] sdb1[9] sdp1[7] sdl1[11] sdr1[4] sdg1[3] > sdk1[10] sdq1[8] sdh1[0] sdv1[13] sdm1[14] sdw1[12] sdn1[2] sdf1[1] sdo1[= 5] > 4375960064 blocks level 5, 64k chunk, algorithm 2 [15/15] > [UUUUUUUUUUUUUUU] >=20 > md0 : active raid1 sdi2[1] > 15634360 blocks super 1.2 [2/1] [_U] > bitmap: 1/1 pages [4KB], 65536KB chunk >=20 > unused devices: >=20 > --Larkin > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html --Sig_/fM0aGaaaW.9a9K=uFgx5z1T Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iQIVAwUBT1KJHznsnt1WYoG5AQJbkRAAhbOvFMGZ49gcEMYorAaIjkeF4c3x/jov N/yfooWzhx1auBwHR/QyXBVBn+aXkHFllCYlpZvkc6QLpRqQ5WWmM9vBzmybQzZl KlHjUKEEcmwbOU0UI/J+mxuyrzBDxvpumsLEzL5BrVLJ/gDk259WIzukcPhgySh1 xx+TMojZSDZiVB5Qv3iZrL3kNoSRVJdN6mlGTTh7xCb9V4Qn+rKK77g1Fia91L4O Maay96lKAahutMka69T2yG7XCtrlZY3kaRDVVYME6BaUUAg8G7QTuJMeRMcGlbLs 1+jQDS4tme7ACipCk7SE1wdKD6dvp7PYOkNeLqo9b3npZ3iP38hPtLOEyXQNhgSe zagpkRjQjc+VBfo3LXqJZOi9jMMXX0g2rNNunU3ZSnLHUe+7T9c9vp4PQ9gVs0Pp t5cZwNOhYRSMRo0ZxM+r3RlGi093sO5PHOPacPRPjzgL/takcd19nXYtjchz6dER ZPIuKiD1PAsO6jY5LRI0/N/plLyqqbWrW5sO5tkJScxnRlIq1sYQM4aYzL+b8jAt SKQpvJSQ18XMIU+eYlpDcxoNjPjXa7ulnTJDqPZfnfx2UCKMsPXoTfK2ThdAZ/nY 6fGUuuJdkkBYJ2jfbTrG/ilxBXKW95/XJSnkwCS/wuS+0qrM7PzkGZme5UnrsjzB 8Zr5YC+rt04= =EzRD -----END PGP SIGNATURE----- --Sig_/fM0aGaaaW.9a9K=uFgx5z1T--