Uninitialized after power loss
Posted: 29 Oct 2020, 02:05
NAS: F4-210
HDD: WD Red 4TB 5400rpm WD40EFAX (4 pieces)
RAID 6
I contacted the Support but they said that i should do contact a recovery service, as the HDD cannot be mounted.
Unfortunately, i cannot afford a recovery service and some of the data found on the HDD has no backup.
I tried fixing the BTRFS system but only root can do options and password to root is unknown to me.
Is there anything that can be done? How can i try to recover the files on my own?
Any ideas on how i can restore my NAS to his working state while still keeping the data or on how the data can be recovered?
Here is what support tried:
root@TNAS-018791:~#
root@TNAS-018791:~# df -h
Filesystem Size Used Available Use% Mounted on
tmpfs 512.0K 0 512.0K 0% /dev
/dev/md9 2.8G 346.3M 2.3G 13% /
tmpfs 479.7M 1.5M 478.2M 0% /tmp
tmpfs 512.0K 0 512.0K 0% /dev
tmpfs 479.7M 244.0K 479.4M 0% /var
/dev/sda1 112.2M 6.9M 96.8M 7% /mnt/bootdev
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath] [faulty]
md0 : active raid6 sdc4[0] sdb4[3] sde4[2] sdd4[1]
7803186688 blocks super 1.2 level 6, 128k chunk, algorithm 2 [4/4] [UUUU]
bitmap: 0/30 pages [0KB], 65536KB chunk
md8 : active raid1 sde3[7] sdd3[5] sdc3[4] sdb3[6]
1998784 blocks super 1.2 [4/4] [UUUU]
md9 : active raid1 sde2[5] sdd2[4] sdc2[1] sdb2[0]
2998208 blocks super 1.2 [4/4] [UUUU]
unused devices: <none>
root@TNAS-018791:~# blkid /dev/mapper/vg0-lv0
/dev/mapper/vg0-lv0: UUID="8b3dd2ce-6349-49d1-affc-76900e547195" UUID_SUB="cb531a9f-dcdf-4fbd-8cdb-687b7085c370" TYPE="btrfs"
root@TNAS-018791:~#
root@TNAS-018791:~# mount -t btrfs /dev/mapper/vg0-lv0 /mnt/md0/
### No possible actions to be performed ###
### New window ###
root@TNAS-018791:~#
root@TNAS-018791:~# df -h
Filesystem Size Used Available Use% Mounted on
tmpfs 512.0K 0 512.0K 0% /dev
/dev/md9 2.8G 346.3M 2.3G 13% /
tmpfs 479.7M 1.5M 478.2M 0% /tmp
tmpfs 512.0K 0 512.0K 0% /dev
tmpfs 479.7M 244.0K 479.4M 0% /var
/dev/sda1 112.2M 6.9M 96.8M 7% /mnt/bootdev
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~# mount
proc on /proc type proc (rw,nosuid,nodev,noexec,noatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,noatime)
cgroup on /sys/fs/cgroup type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset,cpu ,cpuacct,blkio,memory,devices,freezer,net_cls,perf_event,net_prio,hugetlb,pids)
tmpfs on /dev type tmpfs (rw,nosuid,noatime,size=512k,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,noatime,mode=600,ptmxmode=000)
/dev/md9 on / type ext4 (rw,noatime,data=ordered)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,noatime)
tmpfs on /dev type tmpfs (rw,nosuid,relatime,size=512k,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,mode=600,ptmxmode=000)
tmpfs on /var type tmpfs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,noatime)
/dev/sda1 on /mnt/bootdev type ext4 (rw,relatime,data=ordered)
root@TNAS-018791:~# mount -t btrfs /dev/mapper/vg0-lv0 /mnt/vg0-lv0
mount: mount point /mnt/vg0-lv0 does not exist
root@TNAS-018791:~# mount -t btrfs /dev/mapper/vg0-lv0 /mnt/
bootdev/ md0/
root@TNAS-018791:~# e2fsck -f /dev/mapper/vg0-lv0
e2fsck 1.44.1 (24-Mar-2018)
/dev/mapper/vg0-lv0 is in use.
e2fsck: Cannot continue, aborting.
root@TNAS-018791:~# mdadm -S /dev/md0 .
mdadm: Cannot get exclusive access to /dev/md0:Perhaps a running process, mounte d filesystem or active volume group?
mdadm: error opening .: Is a directory
root@TNAS-018791:~# mdadm -S /dev/md0
mdadm: Cannot get exclusive access to /dev/md0:Perhaps a running process, mounte d filesystem or active volume group?
root@TNAS-018791:~#
root@TNAS-018791:~# e2fsck -f /dev/mapper/vg0-lv0
e2fsck 1.44.1 (24-Mar-2018)
/dev/mapper/vg0-lv0 is in use.
e2fsck: Cannot continue, aborting.
root@TNAS-018791:~# e2fsck -b /dev/mapper/vg0-lv0
Invalid non-numeric argument to -b ("/dev/mapper/vg0-lv0")
root@TNAS-018791:~# e2fsck -b /dev/md0
Invalid non-numeric argument to -b ("/dev/md0")
root@TNAS-018791:~# mount -t btrfs /dev/md0 /mnt/md0/
mount: /dev/md0 is already mounted or /mnt/md0 busy
root@TNAS-018791:~# pvs
PV VG Fmt Attr PSize PFree
/dev/md0 vg0 lvm2 a-- 7.27t 0
root@TNAS-018791:~# vgs
VG #PV #LV #SN Attr VSize VFree
vg0 1 1 0 wz--n- 7.27t 0
root@TNAS-018791:~# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
lv0 vg0 -wi-ao---- 7.27t
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~# df -h
Filesystem Size Used Available Use% Mounted on
tmpfs 512.0K 0 512.0K 0% /dev
/dev/md9 2.8G 346.3M 2.3G 13% /
tmpfs 479.7M 1.5M 478.2M 0% /tmp
tmpfs 512.0K 0 512.0K 0% /dev
tmpfs 479.7M 244.0K 479.4M 0% /var
/dev/sda1 112.2M 6.9M 96.8M 7% /mnt/bootdev
root@TNAS-018791:~#
root@TNAS-018791:~# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath] [faulty]
md0 : active raid6 sdc4[0] sdb4[3] sde4[2] sdd4[1]
7803186688 blocks super 1.2 level 6, 128k chunk, algorithm 2 [4/4] [UUUU]
bitmap: 0/30 pages [0KB], 65536KB chunk
md8 : active raid1 sde3[7] sdd3[5] sdc3[4] sdb3[6]
1998784 blocks super 1.2 [4/4] [UUUU]
md9 : active raid1 sde2[5] sdd2[4] sdc2[1] sdb2[0]
2998208 blocks super 1.2 [4/4] [UUUU]
unused devices: <none>
root@TNAS-018791:~# e2fsck -p /dev/md0
/dev/md0 is in use.
e2fsck: Cannot continue, aborting.
root@TNAS-018791:~# mdadm -D /dev/md0
/dev/md0:
Version : 1.2
Creation Time : Thu Sep 10 22:01:30 2020
Raid Level : raid6
Array Size : 7803186688 (7441.70 GiB 7990.46 GB)
Used Dev Size : 3901593344 (3720.85 GiB 3995.23 GB)
Raid Devices : 4
Total Devices : 4
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Tue Oct 13 00:06:27 2020
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 128K
Name : TNAS-018791:UTOSUSER-X86-S64 (local to host TNAS-018791)
UUID : 5fd6685b:ce73a0e9:4be71a46:87f4eecf
Events : 13
Number Major Minor RaidDevice State
0 8 36 0 active sync /dev/sdc4
1 8 52 1 active sync /dev/sdd4
2 8 68 2 active sync /dev/sde4
3 8 20 3 active sync /dev/sdb4
root@TNAS-018791:~#
root@TNAS-018791:~# mdadm -E /dev/sdc4
/dev/sdc4:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 5fd6685b:ce73a0e9:4be71a46:87f4eecf
Name : TNAS-018791:UTOSUSER-X86-S64 (local to host TNAS-018791)
Creation Time : Thu Sep 10 22:01:30 2020
Raid Level : raid6
Raid Devices : 4
Avail Dev Size : 7803187200 (3720.85 GiB 3995.23 GB)
Array Size : 7803186688 (7441.70 GiB 7990.46 GB)
Used Dev Size : 7803186688 (3720.85 GiB 3995.23 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
State : clean
Device UUID : b254a82d:16cdabd3:b24a3e9d:97aa5a9a
Internal Bitmap : 8 sectors from superblock
Update Time : Tue Oct 13 00:06:27 2020
Checksum : 73b1a6ff - correct
Events : 13
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 0
Array State : AAAA ('A' == active, '.' == missing)
root@TNAS-018791:~# mdadm -E /dev/sdb4
/dev/sdb4:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 5fd6685b:ce73a0e9:4be71a46:87f4eecf
Name : TNAS-018791:UTOSUSER-X86-S64 (local to host TNAS-018791)
Creation Time : Thu Sep 10 22:01:30 2020
Raid Level : raid6
Raid Devices : 4
Avail Dev Size : 7803187200 (3720.85 GiB 3995.23 GB)
Array Size : 7803186688 (7441.70 GiB 7990.46 GB)
Used Dev Size : 7803186688 (3720.85 GiB 3995.23 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 3bf584d7:1f16392e:d0c66000:40e18f3d
Internal Bitmap : 8 sectors from superblock
Update Time : Tue Oct 13 00:06:27 2020
Checksum : 7e73435a - correct
Events : 13
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 3
Array State : AAAA ('A' == active, '.' == missing)
root@TNAS-018791:~# mdadm -E /dev/sdd4
/dev/sdd4:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 5fd6685b:ce73a0e9:4be71a46:87f4eecf
Name : TNAS-018791:UTOSUSER-X86-S64 (local to host TNAS-018791)
Creation Time : Thu Sep 10 22:01:30 2020
Raid Level : raid6
Raid Devices : 4
Avail Dev Size : 7803187200 (3720.85 GiB 3995.23 GB)
Array Size : 7803186688 (7441.70 GiB 7990.46 GB)
Used Dev Size : 7803186688 (3720.85 GiB 3995.23 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 3bfcb5f8:644b6f63:bcaeac02:9bcd1f65
Internal Bitmap : 8 sectors from superblock
Update Time : Tue Oct 13 00:06:27 2020
Checksum : feb653e4 - correct
Events : 13
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 1
Array State : AAAA ('A' == active, '.' == missing)
root@TNAS-018791:~# mdadm -E /dev/sde4
/dev/sde4:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 5fd6685b:ce73a0e9:4be71a46:87f4eecf
Name : TNAS-018791:UTOSUSER-X86-S64 (local to host TNAS-018791)
Creation Time : Thu Sep 10 22:01:30 2020
Raid Level : raid6
Raid Devices : 4
Avail Dev Size : 7803187200 (3720.85 GiB 3995.23 GB)
Array Size : 7803186688 (7441.70 GiB 7990.46 GB)
Used Dev Size : 7803186688 (3720.85 GiB 3995.23 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 08499e9d:37ee4ecb:97916fb2:ed44a14d
Internal Bitmap : 8 sectors from superblock
Update Time : Tue Oct 13 00:06:27 2020
Checksum : a3c29db3 - correct
Events : 13
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 2
Array State : AAAA ('A' == active, '.' == missing)
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 1 120M 0 disk
`-sda1 8:1 1 120M 0 part /mnt/bootdev
sdb 8:16 0 3.7T 0 disk
|-sdb1 8:17 0 285M 0 part
|-sdb2 8:18 0 2.9G 0 part
| `-md9 9:9 0 2.9G 0 raid1 /
|-sdb3 8:19 0 1.9G 0 part
| `-md8 9:8 0 1.9G 0 raid1 [SWAP]
`-sdb4 8:20 0 3.6T 0 part
`-md0 9:0 0 7.3T 0 raid6
`-vg0-lv0 252:0 0 7.3T 0 lvm
sdc 8:32 0 3.7T 0 disk
|-sdc1 8:33 0 285M 0 part
|-sdc2 8:34 0 2.9G 0 part
| `-md9 9:9 0 2.9G 0 raid1 /
|-sdc3 8:35 0 1.9G 0 part
| `-md8 9:8 0 1.9G 0 raid1 [SWAP]
`-sdc4 8:36 0 3.6T 0 part
`-md0 9:0 0 7.3T 0 raid6
`-vg0-lv0 252:0 0 7.3T 0 lvm
sdd 8:48 0 3.7T 0 disk
|-sdd1 8:49 0 285M 0 part
|-sdd2 8:50 0 2.9G 0 part
| `-md9 9:9 0 2.9G 0 raid1 /
|-sdd3 8:51 0 1.9G 0 part
| `-md8 9:8 0 1.9G 0 raid1 [SWAP]
`-sdd4 8:52 0 3.6T 0 part
`-md0 9:0 0 7.3T 0 raid6
`-vg0-lv0 252:0 0 7.3T 0 lvm
sde 8:64 0 3.7T 0 disk
|-sde1 8:65 0 285M 0 part
|-sde2 8:66 0 2.9G 0 part
| `-md9 9:9 0 2.9G 0 raid1 /
|-sde3 8:67 0 1.9G 0 part
| `-md8 9:8 0 1.9G 0 raid1 [SWAP]
`-sde4 8:68 0 3.6T 0 part
`-md0 9:0 0 7.3T 0 raid6
`-vg0-lv0 252:0 0 7.3T 0 lvm
mtdblock0 31:0 0 128K 0 disk
mtdblock1 31:1 0 512K 0 disk
mtdblock2 31:2 0 320K 0 disk
mtdblock3 31:3 0 1.4M 0 disk
mtdblock4 31:4 0 64K 0 disk
mtdblock5 31:5 0 7.5M 0 disk
mtdblock6 31:6 0 5.5M 0 disk
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~# blkid /dev/mapper/vg0-lv0
/dev/mapper/vg0-lv0: UUID="8b3dd2ce-6349-49d1-affc-76900e547195" UUID_SUB="cb531a9f-dcdf-4fbd-8cdb-687b7085c370" TYPE="btrfs"
root@TNAS-018791:~# e2fsck -f /dev/mapper/vg0-lv0
e2fsck 1.44.1 (24-Mar-2018)
/dev/mapper/vg0-lv0 is in use.
e2fsck: Cannot continue, aborting.
root@TNAS-018791:~# df-gh
-bash: df-gh: command not found
root@TNAS-018791:~# df
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 512 0 512 0% /dev
/dev/md9 2885520 354612 2364616 13% /
tmpfs 491164 1504 489660 0% /tmp
tmpfs 512 0 512 0% /dev
tmpfs 491164 244 490920 0% /var
/dev/sda1 114865 7099 99168 7% /mnt/bootdev
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~# df -h
Filesystem Size Used Available Use% Mounted on
tmpfs 512.0K 0 512.0K 0% /dev
/dev/md9 2.8G 346.3M 2.3G 13% /
tmpfs 479.7M 1.5M 478.2M 0% /tmp
tmpfs 512.0K 0 512.0K 0% /dev
tmpfs 479.7M 248.0K 479.4M 0% /var
/dev/sda1 112.2M 6.9M 96.8M 7% /mnt/bootdev
root@TNAS-018791:~# cd mnt
-bash: cd: mnt: No such file or directory
HDD: WD Red 4TB 5400rpm WD40EFAX (4 pieces)
RAID 6
I contacted the Support but they said that i should do contact a recovery service, as the HDD cannot be mounted.
Unfortunately, i cannot afford a recovery service and some of the data found on the HDD has no backup.
I tried fixing the BTRFS system but only root can do options and password to root is unknown to me.
Is there anything that can be done? How can i try to recover the files on my own?
Any ideas on how i can restore my NAS to his working state while still keeping the data or on how the data can be recovered?
Here is what support tried:
root@TNAS-018791:~#
root@TNAS-018791:~# df -h
Filesystem Size Used Available Use% Mounted on
tmpfs 512.0K 0 512.0K 0% /dev
/dev/md9 2.8G 346.3M 2.3G 13% /
tmpfs 479.7M 1.5M 478.2M 0% /tmp
tmpfs 512.0K 0 512.0K 0% /dev
tmpfs 479.7M 244.0K 479.4M 0% /var
/dev/sda1 112.2M 6.9M 96.8M 7% /mnt/bootdev
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath] [faulty]
md0 : active raid6 sdc4[0] sdb4[3] sde4[2] sdd4[1]
7803186688 blocks super 1.2 level 6, 128k chunk, algorithm 2 [4/4] [UUUU]
bitmap: 0/30 pages [0KB], 65536KB chunk
md8 : active raid1 sde3[7] sdd3[5] sdc3[4] sdb3[6]
1998784 blocks super 1.2 [4/4] [UUUU]
md9 : active raid1 sde2[5] sdd2[4] sdc2[1] sdb2[0]
2998208 blocks super 1.2 [4/4] [UUUU]
unused devices: <none>
root@TNAS-018791:~# blkid /dev/mapper/vg0-lv0
/dev/mapper/vg0-lv0: UUID="8b3dd2ce-6349-49d1-affc-76900e547195" UUID_SUB="cb531a9f-dcdf-4fbd-8cdb-687b7085c370" TYPE="btrfs"
root@TNAS-018791:~#
root@TNAS-018791:~# mount -t btrfs /dev/mapper/vg0-lv0 /mnt/md0/
### No possible actions to be performed ###
### New window ###
root@TNAS-018791:~#
root@TNAS-018791:~# df -h
Filesystem Size Used Available Use% Mounted on
tmpfs 512.0K 0 512.0K 0% /dev
/dev/md9 2.8G 346.3M 2.3G 13% /
tmpfs 479.7M 1.5M 478.2M 0% /tmp
tmpfs 512.0K 0 512.0K 0% /dev
tmpfs 479.7M 244.0K 479.4M 0% /var
/dev/sda1 112.2M 6.9M 96.8M 7% /mnt/bootdev
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~# mount
proc on /proc type proc (rw,nosuid,nodev,noexec,noatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,noatime)
cgroup on /sys/fs/cgroup type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset,cpu ,cpuacct,blkio,memory,devices,freezer,net_cls,perf_event,net_prio,hugetlb,pids)
tmpfs on /dev type tmpfs (rw,nosuid,noatime,size=512k,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,noatime,mode=600,ptmxmode=000)
/dev/md9 on / type ext4 (rw,noatime,data=ordered)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,noatime)
tmpfs on /dev type tmpfs (rw,nosuid,relatime,size=512k,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,mode=600,ptmxmode=000)
tmpfs on /var type tmpfs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,noatime)
/dev/sda1 on /mnt/bootdev type ext4 (rw,relatime,data=ordered)
root@TNAS-018791:~# mount -t btrfs /dev/mapper/vg0-lv0 /mnt/vg0-lv0
mount: mount point /mnt/vg0-lv0 does not exist
root@TNAS-018791:~# mount -t btrfs /dev/mapper/vg0-lv0 /mnt/
bootdev/ md0/
root@TNAS-018791:~# e2fsck -f /dev/mapper/vg0-lv0
e2fsck 1.44.1 (24-Mar-2018)
/dev/mapper/vg0-lv0 is in use.
e2fsck: Cannot continue, aborting.
root@TNAS-018791:~# mdadm -S /dev/md0 .
mdadm: Cannot get exclusive access to /dev/md0:Perhaps a running process, mounte d filesystem or active volume group?
mdadm: error opening .: Is a directory
root@TNAS-018791:~# mdadm -S /dev/md0
mdadm: Cannot get exclusive access to /dev/md0:Perhaps a running process, mounte d filesystem or active volume group?
root@TNAS-018791:~#
root@TNAS-018791:~# e2fsck -f /dev/mapper/vg0-lv0
e2fsck 1.44.1 (24-Mar-2018)
/dev/mapper/vg0-lv0 is in use.
e2fsck: Cannot continue, aborting.
root@TNAS-018791:~# e2fsck -b /dev/mapper/vg0-lv0
Invalid non-numeric argument to -b ("/dev/mapper/vg0-lv0")
root@TNAS-018791:~# e2fsck -b /dev/md0
Invalid non-numeric argument to -b ("/dev/md0")
root@TNAS-018791:~# mount -t btrfs /dev/md0 /mnt/md0/
mount: /dev/md0 is already mounted or /mnt/md0 busy
root@TNAS-018791:~# pvs
PV VG Fmt Attr PSize PFree
/dev/md0 vg0 lvm2 a-- 7.27t 0
root@TNAS-018791:~# vgs
VG #PV #LV #SN Attr VSize VFree
vg0 1 1 0 wz--n- 7.27t 0
root@TNAS-018791:~# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
lv0 vg0 -wi-ao---- 7.27t
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~# df -h
Filesystem Size Used Available Use% Mounted on
tmpfs 512.0K 0 512.0K 0% /dev
/dev/md9 2.8G 346.3M 2.3G 13% /
tmpfs 479.7M 1.5M 478.2M 0% /tmp
tmpfs 512.0K 0 512.0K 0% /dev
tmpfs 479.7M 244.0K 479.4M 0% /var
/dev/sda1 112.2M 6.9M 96.8M 7% /mnt/bootdev
root@TNAS-018791:~#
root@TNAS-018791:~# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath] [faulty]
md0 : active raid6 sdc4[0] sdb4[3] sde4[2] sdd4[1]
7803186688 blocks super 1.2 level 6, 128k chunk, algorithm 2 [4/4] [UUUU]
bitmap: 0/30 pages [0KB], 65536KB chunk
md8 : active raid1 sde3[7] sdd3[5] sdc3[4] sdb3[6]
1998784 blocks super 1.2 [4/4] [UUUU]
md9 : active raid1 sde2[5] sdd2[4] sdc2[1] sdb2[0]
2998208 blocks super 1.2 [4/4] [UUUU]
unused devices: <none>
root@TNAS-018791:~# e2fsck -p /dev/md0
/dev/md0 is in use.
e2fsck: Cannot continue, aborting.
root@TNAS-018791:~# mdadm -D /dev/md0
/dev/md0:
Version : 1.2
Creation Time : Thu Sep 10 22:01:30 2020
Raid Level : raid6
Array Size : 7803186688 (7441.70 GiB 7990.46 GB)
Used Dev Size : 3901593344 (3720.85 GiB 3995.23 GB)
Raid Devices : 4
Total Devices : 4
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Tue Oct 13 00:06:27 2020
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 128K
Name : TNAS-018791:UTOSUSER-X86-S64 (local to host TNAS-018791)
UUID : 5fd6685b:ce73a0e9:4be71a46:87f4eecf
Events : 13
Number Major Minor RaidDevice State
0 8 36 0 active sync /dev/sdc4
1 8 52 1 active sync /dev/sdd4
2 8 68 2 active sync /dev/sde4
3 8 20 3 active sync /dev/sdb4
root@TNAS-018791:~#
root@TNAS-018791:~# mdadm -E /dev/sdc4
/dev/sdc4:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 5fd6685b:ce73a0e9:4be71a46:87f4eecf
Name : TNAS-018791:UTOSUSER-X86-S64 (local to host TNAS-018791)
Creation Time : Thu Sep 10 22:01:30 2020
Raid Level : raid6
Raid Devices : 4
Avail Dev Size : 7803187200 (3720.85 GiB 3995.23 GB)
Array Size : 7803186688 (7441.70 GiB 7990.46 GB)
Used Dev Size : 7803186688 (3720.85 GiB 3995.23 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
State : clean
Device UUID : b254a82d:16cdabd3:b24a3e9d:97aa5a9a
Internal Bitmap : 8 sectors from superblock
Update Time : Tue Oct 13 00:06:27 2020
Checksum : 73b1a6ff - correct
Events : 13
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 0
Array State : AAAA ('A' == active, '.' == missing)
root@TNAS-018791:~# mdadm -E /dev/sdb4
/dev/sdb4:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 5fd6685b:ce73a0e9:4be71a46:87f4eecf
Name : TNAS-018791:UTOSUSER-X86-S64 (local to host TNAS-018791)
Creation Time : Thu Sep 10 22:01:30 2020
Raid Level : raid6
Raid Devices : 4
Avail Dev Size : 7803187200 (3720.85 GiB 3995.23 GB)
Array Size : 7803186688 (7441.70 GiB 7990.46 GB)
Used Dev Size : 7803186688 (3720.85 GiB 3995.23 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 3bf584d7:1f16392e:d0c66000:40e18f3d
Internal Bitmap : 8 sectors from superblock
Update Time : Tue Oct 13 00:06:27 2020
Checksum : 7e73435a - correct
Events : 13
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 3
Array State : AAAA ('A' == active, '.' == missing)
root@TNAS-018791:~# mdadm -E /dev/sdd4
/dev/sdd4:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 5fd6685b:ce73a0e9:4be71a46:87f4eecf
Name : TNAS-018791:UTOSUSER-X86-S64 (local to host TNAS-018791)
Creation Time : Thu Sep 10 22:01:30 2020
Raid Level : raid6
Raid Devices : 4
Avail Dev Size : 7803187200 (3720.85 GiB 3995.23 GB)
Array Size : 7803186688 (7441.70 GiB 7990.46 GB)
Used Dev Size : 7803186688 (3720.85 GiB 3995.23 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 3bfcb5f8:644b6f63:bcaeac02:9bcd1f65
Internal Bitmap : 8 sectors from superblock
Update Time : Tue Oct 13 00:06:27 2020
Checksum : feb653e4 - correct
Events : 13
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 1
Array State : AAAA ('A' == active, '.' == missing)
root@TNAS-018791:~# mdadm -E /dev/sde4
/dev/sde4:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 5fd6685b:ce73a0e9:4be71a46:87f4eecf
Name : TNAS-018791:UTOSUSER-X86-S64 (local to host TNAS-018791)
Creation Time : Thu Sep 10 22:01:30 2020
Raid Level : raid6
Raid Devices : 4
Avail Dev Size : 7803187200 (3720.85 GiB 3995.23 GB)
Array Size : 7803186688 (7441.70 GiB 7990.46 GB)
Used Dev Size : 7803186688 (3720.85 GiB 3995.23 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 08499e9d:37ee4ecb:97916fb2:ed44a14d
Internal Bitmap : 8 sectors from superblock
Update Time : Tue Oct 13 00:06:27 2020
Checksum : a3c29db3 - correct
Events : 13
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 2
Array State : AAAA ('A' == active, '.' == missing)
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 1 120M 0 disk
`-sda1 8:1 1 120M 0 part /mnt/bootdev
sdb 8:16 0 3.7T 0 disk
|-sdb1 8:17 0 285M 0 part
|-sdb2 8:18 0 2.9G 0 part
| `-md9 9:9 0 2.9G 0 raid1 /
|-sdb3 8:19 0 1.9G 0 part
| `-md8 9:8 0 1.9G 0 raid1 [SWAP]
`-sdb4 8:20 0 3.6T 0 part
`-md0 9:0 0 7.3T 0 raid6
`-vg0-lv0 252:0 0 7.3T 0 lvm
sdc 8:32 0 3.7T 0 disk
|-sdc1 8:33 0 285M 0 part
|-sdc2 8:34 0 2.9G 0 part
| `-md9 9:9 0 2.9G 0 raid1 /
|-sdc3 8:35 0 1.9G 0 part
| `-md8 9:8 0 1.9G 0 raid1 [SWAP]
`-sdc4 8:36 0 3.6T 0 part
`-md0 9:0 0 7.3T 0 raid6
`-vg0-lv0 252:0 0 7.3T 0 lvm
sdd 8:48 0 3.7T 0 disk
|-sdd1 8:49 0 285M 0 part
|-sdd2 8:50 0 2.9G 0 part
| `-md9 9:9 0 2.9G 0 raid1 /
|-sdd3 8:51 0 1.9G 0 part
| `-md8 9:8 0 1.9G 0 raid1 [SWAP]
`-sdd4 8:52 0 3.6T 0 part
`-md0 9:0 0 7.3T 0 raid6
`-vg0-lv0 252:0 0 7.3T 0 lvm
sde 8:64 0 3.7T 0 disk
|-sde1 8:65 0 285M 0 part
|-sde2 8:66 0 2.9G 0 part
| `-md9 9:9 0 2.9G 0 raid1 /
|-sde3 8:67 0 1.9G 0 part
| `-md8 9:8 0 1.9G 0 raid1 [SWAP]
`-sde4 8:68 0 3.6T 0 part
`-md0 9:0 0 7.3T 0 raid6
`-vg0-lv0 252:0 0 7.3T 0 lvm
mtdblock0 31:0 0 128K 0 disk
mtdblock1 31:1 0 512K 0 disk
mtdblock2 31:2 0 320K 0 disk
mtdblock3 31:3 0 1.4M 0 disk
mtdblock4 31:4 0 64K 0 disk
mtdblock5 31:5 0 7.5M 0 disk
mtdblock6 31:6 0 5.5M 0 disk
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~# blkid /dev/mapper/vg0-lv0
/dev/mapper/vg0-lv0: UUID="8b3dd2ce-6349-49d1-affc-76900e547195" UUID_SUB="cb531a9f-dcdf-4fbd-8cdb-687b7085c370" TYPE="btrfs"
root@TNAS-018791:~# e2fsck -f /dev/mapper/vg0-lv0
e2fsck 1.44.1 (24-Mar-2018)
/dev/mapper/vg0-lv0 is in use.
e2fsck: Cannot continue, aborting.
root@TNAS-018791:~# df-gh
-bash: df-gh: command not found
root@TNAS-018791:~# df
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 512 0 512 0% /dev
/dev/md9 2885520 354612 2364616 13% /
tmpfs 491164 1504 489660 0% /tmp
tmpfs 512 0 512 0% /dev
tmpfs 491164 244 490920 0% /var
/dev/sda1 114865 7099 99168 7% /mnt/bootdev
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~#
root@TNAS-018791:~# df -h
Filesystem Size Used Available Use% Mounted on
tmpfs 512.0K 0 512.0K 0% /dev
/dev/md9 2.8G 346.3M 2.3G 13% /
tmpfs 479.7M 1.5M 478.2M 0% /tmp
tmpfs 512.0K 0 512.0K 0% /dev
tmpfs 479.7M 248.0K 479.4M 0% /var
/dev/sda1 112.2M 6.9M 96.8M 7% /mnt/bootdev
root@TNAS-018791:~# cd mnt
-bash: cd: mnt: No such file or directory