On Sun, Oct 30, 2016 at 10:16:54AM -0700, Marc MERLIN wrote:
myth:~# mdadm --assemble --update=force-no-bbl /dev/md5
mdadm: /dev/md5 has been started with 5 drives.
myth:~#
myth:~# mdadm --examine-badblocks /dev/sd[defgh]1
No bad-blocks list configured on /dev/sdd1
No bad-blocks list configured on /dev/sde1
No bad-blocks list configured on /dev/sdf1
No bad-blocks list configured on /dev/sdg1
No bad-blocks list configured on /dev/sdh1
Now I'll make sure to turn off this feature on all my other arrays
in case it got turned on without my asking for it.
Right, so I thought I was home free, but not even close. My array is
back up, the badblock feature is disabled, array reports clean, but I
cannot access data past 8.8TB, it just fails.
myth:~# dd if=/dev/md5 of=/dev/null bs=1GB skip=8797
dd: reading `/dev/md5': Invalid argument
0+0 records in
0+0 records out
0 bytes (0 B) copied, 0.000403171 s, 0.0 kB/s
myth:~# dd if=/dev/md5 of=/dev/null bs=1GB skip=8796
dd: reading `/dev/md5': Invalid argument
1+0 records in
1+0 records out
1000000000 bytes (1.0 GB) copied, 10.5817 s, 94.5 MB/s
myth:~# mdadm --query --detail /dev/md5
/dev/md5:
Version : 1.2
Creation Time : Tue Jan 21 10:35:52 2014
Raid Level : raid5
Array Size : 15627542528 (14903.59 GiB 16002.60 GB)
Used Dev Size : 3906885632 (3725.90 GiB 4000.65 GB)
Raid Devices : 5
Total Devices : 5
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Mon Oct 31 07:56:07 2016
State : clean
Active Devices : 5
Working Devices : 5
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 512K
Name : gargamel.svh.merlins.org:5
UUID : ec672af7:a66d9557:2f00d76c:38c9f705
Events : 147992
Number Major Minor RaidDevice State
0 8 97 0 active sync /dev/sdg1
6 8 113 1 active sync /dev/sdh1
2 8 81 2 active sync /dev/sdf1
3 8 65 3 active sync /dev/sde1
5 8 49 4 active sync /dev/sdd1
myth:~#
myth:~# mdadm --examine /dev/sdd1
/dev/sdd1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : ec672af7:a66d9557:2f00d76c:38c9f705
Name : gargamel.svh.merlins.org:5
Creation Time : Tue Jan 21 10:35:52 2014
Raid Level : raid5
Raid Devices : 5
Avail Dev Size : 7813771264 (3725.90 GiB 4000.65 GB)
Array Size : 15627542528 (14903.59 GiB 16002.60 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=0 sectors
State : clean
Device UUID : 075571ff:411517e9:027f8c2f:cef0457a
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Oct 31 07:56:07 2016
Checksum : d4e74521 - correct
Events : 147992
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 4
Array State : AAAAA ('A' == active, '.' == missing, 'R' == replacing)
all 5 devices look about the same outside of serial numbers.
Any idea why it's failing that way?
Thanks,
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 1024R/763BE901