From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roland RoLaNd Subject: can i recover an all spare raid10 array ? Date: Tue, 28 Oct 2014 18:22:11 +0200 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Sender: linux-raid-owner@vger.kernel.org To: "linux-raid@vger.kernel.org" List-Id: linux-raid.ids I have two raid arrays on my system: raid1: /dev/sdd1 /dev/sdh1 raid10: /dev/sde1 /dev/sda1 /dev/sdf1 /dec/sdb1 /dev/sdc1 /dev/sdg1 two disks had bad sectors: sdd and sdf <<-- they both got hot swapped. = i added sdf back to raid10 and recovery took place but adding sdd1 to r= aid1 proved to be troublesome as i didn't have anything important on '/' i formatted and installed ub= untu 14 on raid1=A0 now system is up on raid 1, but raid10 (md127) is inactive cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [r= aid4] [raid10]=A0 md127 : inactive sde1[2](S) sdg1[8](S) sdc1[6](S) sdb1[5](S) sdf1[4](S)= sda1[3](S) =A0 =A0 =A0 17580804096 blocks super 1.2 =A0 =A0 =A0 =A0 md2 : active raid1 sdh4[0] sdd4[1] =A0 =A0 =A0 2921839424 blocks super 1.2 [2/2] [UU] =A0 =A0 =A0 [=3D=3D>..................] =A0resync =3D 10.4% (304322368/= 2921839424) finish=3D672.5min speed=3D64861K/sec =A0 =A0 =A0=A0 md1 : active raid1 sdh3[0] sdd3[1] =A0 =A0 =A0 7996352 blocks super 1.2 [2/2] [UU] =A0 =A0 =A0=A0 md0 : active raid1 sdh2[0] sdd2[1] =A0 =A0 =A0 292544 blocks super 1.2 [2/2] [UU] =A0 =A0 =A0=A0 unused devices: if i try to assemble md127=A0 =A0=A0 =A0 mdadm --assemble /dev/md127 /dev/sde1 /dev/sda1 /dev/sdf1 /dev/sdb1= /dev/sdc1 /dev/sdg1 mdadm: /dev/sde1 is busy - skipping mdadm: /dev/sda1 is busy - skipping mdadm: /dev/sdf1 is busy - skipping mdadm: /dev/sdb1 is busy - skipping mdadm: /dev/sdc1 is busy - skipping mdadm: /dev/sdg1 is busy - skipping if i try to add one of the disks: =A0mdadm --add /dev/md127 /dev/sdj1 mdadm: cannot get array info for /dev/md127 if i try: mdadm --stop /dev/md127 mdadm: stopped /dev/md127 then running: =A0 mdadm --assemble /dev/md127 /dev/sde1 /dev/sda1 /dev/= sdf1 /dev/sdb1 /dev/sdc1 /dev/sdg1 returns:=A0 =A0 assembled from 5 drives and 1 rebuilding - not enough to start the arra= y what does it mean ? is my data lost ?=A0 if i examine one of the md127 raid 10 array disks it shows this: =A0 mdadm --examine /dev/sde1 /dev/sde1: =A0 =A0 =A0 =A0 =A0 Magic : a92b4efc =A0 =A0 =A0 =A0 Version : 1.2 =A0 =A0 Feature Map : 0x0 =A0 =A0 =A0Array UUID : ab90d4c8:41a55e14:635025cc:28f0ee76 =A0 =A0 =A0 =A0 =A0 =A0Name : ubuntu:data =A0(local to host ubuntu) =A0 Creation Time : Sat May 10 21:54:56 2014 =A0 =A0 =A0Raid Level : raid10 =A0 =A0Raid Devices : 8 =A0Avail Dev Size : 5860268032 (2794.39 GiB 3000.46 GB) =A0 =A0 =A0Array Size : 11720534016 (11177.57 GiB 12001.83 GB) =A0 Used Dev Size : 5860267008 (2794.39 GiB 3000.46 GB) =A0 =A0 Data Offset : 262144 sectors =A0 =A0Super Offset : 8 sectors =A0 =A0 =A0 =A0 =A0 State : clean =A0 =A0 Device UUID : a2a5db61:bd79f0ae:99d97f17:21c4a619 =A0 =A0 Update Time : Tue Oct 28 10:07:18 2014 =A0 =A0 =A0 =A0Checksum : 409deeb4 - correct =A0 =A0 =A0 =A0 =A0Events : 8655 =A0 =A0 =A0 =A0 =A0Layout : near=3D2 =A0 =A0 =A0Chunk Size : 512K =A0 =A0Device Role : Active device 2 =A0 =A0Array State : AAAAAAAA ('A' =3D=3D active, '.' =3D=3D missing) Used Dev Size : 5860267008 (2794.39 GiB 3000.46 GB) <<--- does this mea= n i still have my data ? =A0 the remaining two disks: =A0 mdadm --examine /dev/sdj1 mdadm: No md superblock detected on /dev/sdj1. =A0 mdadm --examine /dev/sdi1 mdadm: No md superblock detected on /dev/sdi1. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html