NAS 104 Locked Up

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broad01 wrote:

I will try again.

Here are the results, any further suggestions?

 

Spoiler

# rnutil chroot

mdadm: /dev/md/0 has been started with 4 drives.

mdadm: /dev/md/1 has been started with 4 drives.

mdadm: /dev/md/data-0 has been started with 4 drives.

mount: mounting LABEL=0e346740:data on /data failed: No such file or directory

Spoiler

root@3EP134E501109:/# btrfs check /dev/md127

checksum verify failed on 27623876067328 found 7B90F733 wanted 317347E8

checksum verify failed on 27623876067328 found 7B90F733 wanted 317347E8

checksum verify failed on 27623876067328 found 092ADC2A wanted 80665FC4

checksum verify failed on 27623876067328 found 092ADC2A wanted 80665FC4

bytenr mismatch, want=27623876067328, have=6109277914453778088

Couldn't read tree root

Couldn't open file system

Spoiler

root@3EP134E501109:/# btrfs device scan

Scanning for Btrfs filesystems

root@3EP134E501109:/# btrfs fi show

Label: '0e346740:data'  uuid: a5008274-7a77-450f-b098-dff8dd3dc285

        Total devices 1 FS bytes used 20.10TiB

        devid    1 size 21.82TiB used 21.77TiB path /dev/md127

Spoiler

root@3EP134E501109:/# mount /dev/md127 /data

mount: wrong fs type, bad option, bad superblock on /dev/md127,

       missing codepage or helper program, or other error

 

       In some cases useful info is found in syslog - try

       dmesg | tail or so.

Spoiler

root@3EP134E501109:/# dmesg | tail

[  153.836981]  disk 2, o:1, dev:sdc3

[  153.836988]  disk 3, o:1, dev:sdd3

[  153.837203] md127: detected capacity change from 0 to 23989784936448

[  154.337435] EXT4-fs (md0): mounted filesystem with ordered data mode. Opts: (null)

[  229.016409] BTRFS: device label 0e346740:data devid 1 transid 1575622 /dev/md127

[  270.024702] BTRFS: has skinny extents

[  270.241458] BTRFS (device md127): bad tree block start 17761992830035128566 27623876067328

[  270.241879] BTRFS (device md127): bad tree block start 17761992830035128566 27623876067328

[  270.241917] BTRFS: failed to read tree root on md127

[  270.300229] BTRFS: open_ctree failed

Adam

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The data volume is corrupted.  RAID recovery software might work.