That worked! Thank you for your help.
Just wondering if anyone knows if future versions of OMV might have this information and option available in the web interface or if this is something that will always be something you have to dig into the command line to fix?
Hello All!
I have a OMV based NAS I build with spare parts. Here are the relivant details.
Earlier this week one of the hard drive died taking the power supply with it. I have since replaced the Power Supply and the failed drive. I booted the system back up and logged onto the Web Interface. Under Storage -> Physical Disks, I can see 7 drive, the six working 2 TB HDD and the 8GB USB boot drive, however when I go to Storage -> RAID, no RAID is listed.
I was expecting to see the RAID-6 array in a degraded state, but nothing is listed. I am not a Linux expert, so I need help in figuring out if the data is still recoverable and how to go about getting the RAID array recognized and working again. I have a replacement drive for drive 7 on the way, but since I was using RAID-6, I should still be able to function.
My Questions:
-Uneventful
The following is the output from my SSH session on the server.
login as: root
root@omv's password:
Linux omv 3.2.0-4-amd64 #1 SMP Debian 3.2.81-1 x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Wed Jul 15 19:57:07 2015
root@omv:~# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4]
md0 : inactive sdc[0] sda[5] sdg[4] sdf[3] sde[2] sdd[1]
11720301072 blocks super 1.2
unused devices: <none>
root@omv:~# blkid
/dev/sdd: UUID="c803cd1c-123e-20b6-33b1-f08dfa085133" UUID_SUB="8f953c1e-fcd2-0716-d978-3cb2a38a34f9" LABEL="omv:Data" TYPE="linux_raid_member"
/dev/sde: UUID="c803cd1c-123e-20b6-33b1-f08dfa085133" UUID_SUB="c6a24cc9-b776-d524-3ce2-eeb129c16170" LABEL="omv:Data" TYPE="linux_raid_member"
/dev/sdg: UUID="c803cd1c-123e-20b6-33b1-f08dfa085133" UUID_SUB="7cfe7408-47d0-5f02-95a6-cacf00b05a01" LABEL="omv:Data" TYPE="linux_raid_member"
/dev/sda: UUID="c803cd1c-123e-20b6-33b1-f08dfa085133" UUID_SUB="40712e3d-d65e-25be-b225-3fb03de020ff" LABEL="omv:Data" TYPE="linux_raid_member"
/dev/sdf: UUID="c803cd1c-123e-20b6-33b1-f08dfa085133" UUID_SUB="acb098f2-704f-b691-6087-6c0fec34ddde" LABEL="omv:Data" TYPE="linux_raid_member"
/dev/sdc: UUID="c803cd1c-123e-20b6-33b1-f08dfa085133" UUID_SUB="8ba0b609-2a87-dec9-47ec-d88209632f5f" LABEL="omv:Data" TYPE="linux_raid_member"
/dev/sdb1: UUID="8b1879a6-8ba3-4f4e-8941-387bb382c884" TYPE="ext4"
/dev/sdb5: UUID="b73e3bac-d6a5-41ca-8eba-6bc765795107" TYPE="swap"
root@omv:~# fdisk -l
Disk /dev/sda: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/sda doesn't contain a valid partition table
Disk /dev/sdd: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/sdd doesn't contain a valid partition table
Disk /dev/sdg: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/sdg doesn't contain a valid partition table
Disk /dev/sdf: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/sdf doesn't contain a valid partition table
Disk /dev/sde: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/sde doesn't contain a valid partition table
Disk /dev/sdc: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/sdc doesn't contain a valid partition table
Disk /dev/sdb: 7776 MB, 7776239616 bytes
255 heads, 63 sectors/track, 945 cylinders, total 15187968 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000c79da
Device Boot Start End Blocks Id System
/dev/sdb1 * 63 14458499 7229218+ 83 Linux
/dev/sdb2 14458500 15181424 361462+ 5 Extended
/dev/sdb5 14458563 15181424 361431 82 Linux swap / Solaris
root@omv:~# cat /etc/mdadm/mdadm.conf
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#
# by default, scan all partitions (/proc/partitions) for MD superblocks.
# alternatively, specify devices to scan, using wildcards if desired.
# Note, if no DEVICE line is present, then "DEVICE partitions" is assumed.
# To avoid the auto-assembly of RAID devices a pattern that CAN'T match is
# used if no RAID devices are configured.
DEVICE partitions
# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes
# automatically tag new arrays as belonging to the local system
HOMEHOST <system>
# definitions of existing MD arrays
ARRAY /dev/md0 metadata=1.2 name=omv:Data UUID=c803cd1c:123e20b6:33b1f08d:fa085133
root@omv:~# mdadm --detail --scan --verbose
ARRAY /dev/md0 level=raid6 num-devices=7 metadata=1.2 name=omv:Data UUID=c803cd1c:123e20b6:33b1f08d:fa085133
devices=/dev/sdc,/dev/sdd,/dev/sde,/dev/sdf,/dev/sdg,/dev/sda
root@omv:~#
