/dev/sda:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : f7333d4f:8300969d:55148d64:93c8afc8
Name : livingrm-server:2 (local to host livingrm-server)
Creation Time : Thu Jun 30 07:57:36 2016
Raid Level : raid5
Raid Devices : 7
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 23441323008 (22355.39 GiB 24003.91 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262056 sectors, after=688 sectors
State : clean
Device UUID : 9c14bcb8:be8310f5:5b50c3a7:e6e57423
Internal Bitmap : 8 sectors from superblock
Update Time : Sun Jan 15 08:09:15 2017
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : 13425c44 - correct
Events : 5667
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 2
Array State : AAAAAAA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdb:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x45
Array UUID : f7333d4f:8300969d:55148d64:93c8afc8
Name : livingrm-server:2 (local to host livingrm-server)
Creation Time : Thu Jun 30 07:57:36 2016
Raid Level : raid5
Raid Devices : 8
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 27348210176 (26081.29 GiB 28004.57 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
New Offset : 254976 sectors
Super Offset : 8 sectors
State : active
Device UUID : 15d85573:6e78f040:8c028ef3:d1301f9d
Internal Bitmap : 8 sectors from superblock
Reshape pos'n : 39348736 (37.53 GiB 40.29 GB)
Delta Devices : 1 (7->8)
Update Time : Fri Oct 27 19:46:43 2017
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : e568d9d9 - correct
Events : 650554
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 3
Array State : AAAAAAA. ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdc:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x45
Array UUID : f7333d4f:8300969d:55148d64:93c8afc8
Name : livingrm-server:2 (local to host livingrm-server)
Creation Time : Thu Jun 30 07:57:36 2016
Raid Level : raid5
Raid Devices : 8
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 27348210176 (26081.29 GiB 28004.57 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
New Offset : 254976 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 64d5961e:230e558c:3748b561:a7c6ab8c
Internal Bitmap : 8 sectors from superblock
Reshape pos'n : 39348736 (37.53 GiB 40.29 GB)
Delta Devices : 1 (7->8)
Update Time : Fri Oct 27 19:46:43 2017
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : 39c2485b - correct
Events : 650554
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 0
Array State : AAAAAAA. ('A' == active, '.' == missing, 'R' == replacing)
/dev/sde:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x45
Array UUID : f7333d4f:8300969d:55148d64:93c8afc8
Name : livingrm-server:2 (local to host livingrm-server)
Creation Time : Thu Jun 30 07:57:36 2016
Raid Level : raid5
Raid Devices : 8
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 27348210176 (26081.29 GiB 28004.57 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
New Offset : 254976 sectors
Super Offset : 8 sectors
State : active
Device UUID : 2df0b319:bdb18eee:27b318ec:da55d53d
Internal Bitmap : 8 sectors from superblock
Reshape pos'n : 39348736 (37.53 GiB 40.29 GB)
Delta Devices : 1 (7->8)
Update Time : Fri Oct 27 19:46:43 2017
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : d2a600e7 - correct
Events : 650554
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 6
Array State : AAAAAAA. ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdf:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x45
Array UUID : f7333d4f:8300969d:55148d64:93c8afc8
Name : livingrm-server:2 (local to host livingrm-server)
Creation Time : Thu Jun 30 07:57:36 2016
Raid Level : raid5
Raid Devices : 8
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 27348210176 (26081.29 GiB 28004.57 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
New Offset : 254976 sectors
Super Offset : 8 sectors
State : active
Device UUID : f1a790a9:98e01257:d9ab257d:95c8f1fc
Internal Bitmap : 8 sectors from superblock
Reshape pos'n : 39348736 (37.53 GiB 40.29 GB)
Delta Devices : 1 (7->8)
Update Time : Fri Oct 27 19:46:43 2017
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : 1b3052f2 - correct
Events : 650554
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 4
Array State : AAAAAAA. ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdg:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x45
Array UUID : f7333d4f:8300969d:55148d64:93c8afc8
Name : livingrm-server:2 (local to host livingrm-server)
Creation Time : Thu Jun 30 07:57:36 2016
Raid Level : raid5
Raid Devices : 8
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 27348210176 (26081.29 GiB 28004.57 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
New Offset : 254976 sectors
Super Offset : 8 sectors
State : active
Device UUID : 6f44eba1:29d246a4:c5e8312e:bac00a7b
Internal Bitmap : 8 sectors from superblock
Reshape pos'n : 39348736 (37.53 GiB 40.29 GB)
Delta Devices : 1 (7->8)
Update Time : Fri Oct 27 19:46:43 2017
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : 8fe4160e - correct
Events : 650554
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 1
Array State : AAAAAAA. ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdh:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x47
Array UUID : f7333d4f:8300969d:55148d64:93c8afc8
Name : livingrm-server:2 (local to host livingrm-server)
Creation Time : Thu Jun 30 07:57:36 2016
Raid Level : raid5
Raid Devices : 8
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 27348210176 (26081.29 GiB 28004.57 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
New Offset : 254976 sectors
Super Offset : 8 sectors
Recovery Offset : 11264816 sectors
State : active
Device UUID : 109b7a2f:0529794c:2cf95cc1:d6c0bd6b
Internal Bitmap : 8 sectors from superblock
Reshape pos'n : 39348736 (37.53 GiB 40.29 GB)
Delta Devices : 1 (7->8)
Update Time : Fri Oct 27 19:46:43 2017
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : 4a2fb746 - correct
Events : 650554
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 2
Array State : AAAAAAA. ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdi:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x45
Array UUID : f7333d4f:8300969d:55148d64:93c8afc8
Name : livingrm-server:2 (local to host livingrm-server)
Creation Time : Thu Jun 30 07:57:36 2016
Raid Level : raid5
Raid Devices : 8
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 27348210176 (26081.29 GiB 28004.57 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
New Offset : 254976 sectors
Super Offset : 8 sectors
State : active
Device UUID : deb04cea:d6530966:6c70ca90:bebb143e
Internal Bitmap : 8 sectors from superblock
Reshape pos'n : 39348736 (37.53 GiB 40.29 GB)
Delta Devices : 1 (7->8)
Update Time : Fri Oct 27 19:46:43 2017
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : bfaa86d9 - correct
Events : 650554
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 5
Array State : AAAAAAA. ('A' == active, '.' == missing, 'R' == replacing)
and mdadm -D
/dev/md126:
Version :
Raid Level : raid0
Total Devices : 0
State : inactive
Number Major Minor RaidDevice
On Sat, Oct 28, 2017 at 11:48 AM, Mark Knecht <markknecht@xxxxxxxxx> wrote:
> On Sat, Oct 28, 2017 at 11:36 AM, Jun-Kai Teoh <kai.teoh@xxxxxxxxx> wrote:
>> Hi all,
>>
>> Hope this email is going to the right place.
>>
>> I'll cut to the chase - I added a drive to my RAID 5 and was resyncing
>> when my machine was abruptly powered down. Upon booting it up again,
>> my RAID array is now missing.
>>
>> I've followed the instructions that I've found on the wiki, and it
>> hasn't solved my issues, but it's given me a sense of the things that
>> I'm hoping can help you guys help me troubleshoot.
>>
>> My array can't be assembled. It tells me that the superblock on
>> /dev/sda doesn't match the others.
>>
>> /dev/sda thinks the array has 7 drives
>> /dev/sd[bcefghi] thinks the array has 8 drives
>>
>> /dev/sda was not being reshaped
>> /dev/sd[bcefghi] has reshape position data in the raid.status file
>>
>> both /dev/sda and /dev/sdh think their device role is Active device 2
>>
>> I can't bring /dev/md126 back up with sd[bcefghi] as it'll tell me
>> that there are 6 drives and 1 rebuilding, not enough to start the
>> array
>>
>> My mdadm.conf shows a /dev/dev/127 with very minimal info in it - does
>> not look right to me.
>>
>> I haven't zeroed the superblock, nor have I tried a clean-assemble
>> either. I saw the wiki say I should email the group if I've gotten
>> that far and I'm panicking and nothing's working. So...
>>
>> Help me out, pretty please?
>
> I wonder if you know for certain that the RAID was scrubbed and clean
> before you made the changes?
>
> Maybe sda got kicked before you added the new drive?
>
> The number one thing you'll want to supply is the 'Examine' results
> for all drives:
>
> mdadm -E /dev/sd[abcdefghi]
>
> and
>
> mdadm -D for the array if it rill run.
>
> I would also run smartctl on the drives and post those results back also.
>
> I won't be able to solve your problems but those items are pretty much
> required for others to get started in a meaningful way.
>
> Good luck,
> Mark
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