On Wed, Jan 21, 2015 at 12:28 AM, Valentijn Sessink [off-list ref] wrote:
Make a snapshot using dmsetup.
Thanks for the tip. I did not know the blockdev --setro command.
I've attached the output of smartctl -A in smartctl.log, mdadm -E in
mdadm.log, and mdstat in mdstat.log.
The mdstat needs some explanation, perhaps
sd[a-d] are 3TB hard disks
sd[e-f] are SSDs
md121, md122, md125 : swap disks
md123, md124: uefi, boot
md126: PV with LV root
md125: bcache cache disk
what is missing is a raid5 on /dev/sd[a-d]4 which is the bcache backing device
Try: madam -A -o --run --force --freeze-reshape /dev/md120 /dev/sd[a-d]4
It failed the same as before. Logs in mdadm-a.log and dmesg.log
The system was in the middle of a reshape to move the data-offset from
5120 to 8192. No disks were added or removed. All disks are healthy. I
believe the system was rebooted mid-reshape.
Could this be a bug? That madam won't continue a data-offset reshape?