I have renamed vg name. I tried ‘mdadm --examine’. Still not ok.
Why all my disk is MBR partition table, not GPT?
[/mnt] # mdadm --examine /dev/sdd
/dev/sdd:
MBR Magic : aa55
Partition[0] : 3907029167 sectors at 1 (type ee)
[/mnt] # mdadm --examine /dev/sdc
/dev/sdc:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
[/mnt] # mdadm --examine /dev/sdb
/dev/sdb:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
[/mnt] # mdadm --examine /dev/sda
/dev/sda:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
(parted) select /dev/sdd
select /dev/sdd
Using /dev/sdd
(parted) print
print
Model: ST2000LM 007-1R8174 (scsi)
Disk /dev/sdd: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 20.5kB 543MB 543MB ext3 primary
2 543MB 1086MB 543MB linux-swap(v1) primary
3 1086MB 1991GB 1990GB primary
4 1991GB 1992GB 543MB ext3 primary
5 1992GB 2000GB 8554MB linux-swap(v1) primary
[/mnt] # mdadm --assemble /dev/md42 /dev/sdd3
mdadm: no recogniseable superblock on /dev/sdd3
mdadm: /dev/sdd3 has no superblock - assembly aborted
[/mnt] # vgs -o +vg_uuid
VG #PV #LV #SN Attr VSize VFree VG UUID
vg16t 1 2 0 wz--n- 16.36t 0 6Z2GSe-XMvK-HVX4-4Ve1-7nCe-aNV7-FZ5EDb
vg1raid1 1 4 0 wz--n- 9.09t 0 jey6Ct-pMsc-pHW3-nO3I-tHIz-QnhS-PZyHLD
[/mnt] # vgscan --cache
Reading all physical volumes. This may take a while...
Found volume group "vg1raid1" using metadata type lvm2
Found volume group "vg16t" using metadata type lvm2
Luckily, I can mount sdd1, and found md_backup info. In it, ‘/dev/sdc3’ is my 2TB disk. Does this help me get more sdd3 info?
I have a question, in the md_backup infomation, I did not find 18TB disk infomation. This backup is not automated? How do I make a md_backup infomation?
[/mnt] # cat temp1/md_backup_2021-11-10_07.20.54
Superblock information recorded by md_checker at Wed Nov 10 07:20:54 HKT 2021
/dev/sdc3:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : ebafbd6a:de844c8a:2254f493:23bb0e65
Name : 2
Creation Time : Sun Apr 11 18:11:42 2021
Raid Level : raid1
Raid Devices : 1
Avail Dev Size : 3887119240 (1853.52 GiB 1990.21 GB)
Array Size : 1943559616 (1853.52 GiB 1990.21 GB)
Used Dev Size : 3887119232 (1853.52 GiB 1990.21 GB)
Super Offset : 3887119504 sectors
Unused Space : before=0 sectors, after=264 sectors
State : clean
Device UUID : c91ac824:5edbe4b1:bdee1597:40d052a9
Update Time : Wed Nov 10 03:39:38 2021
Bad Block Log : 512 entries available at offset -8 sectors
Checksum : 27251618 - correct
Events : 2
Device Role : Active device 0
Array State : A ('A' == active, '.' == missing, 'R' == replacing)
/dev/sda3:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : b8de2939:b182507e:b6b83396:8c54e364
Name : 1
Creation Time : Wed Nov 4 15:07:27 2020
Raid Level : raid1
Raid Devices : 2
Avail Dev Size : 19529738264 (9312.51 GiB 9999.23 GB)
Array Size : 9756483200 (9304.51 GiB 9990.64 GB)
Used Dev Size : 19512966400 (9304.51 GiB 9990.64 GB)
Super Offset : 19529738528 sectors
Unused Space : before=0 sectors, after=16772120 sectors
State : clean
Device UUID : b2660638:4af825a7:c080ad93:9e46bd69
Update Time : Wed Nov 10 07:20:50 2021
Bad Block Log : 512 entries available at offset -8 sectors
Checksum : 9c7c5a59 - correct
Events : 37404
Device Role : Active device 0
Array State : AA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdb3:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : b8de2939:b182507e:b6b83396:8c54e364
Name : 1
Creation Time : Wed Nov 4 15:07:27 2020
Raid Level : raid1
Raid Devices : 2
Avail Dev Size : 19512966400 (9304.51 GiB 9990.64 GB)
Array Size : 9756483200 (9304.51 GiB 9990.64 GB)
Super Offset : 19512966664 sectors
Unused Space : before=0 sectors, after=256 sectors
State : clean
Device UUID : c5c381ae:061c9169:635c7512:eb4074d1
Update Time : Wed Nov 10 07:20:50 2021
Bad Block Log : 512 entries available at offset -8 sectors
Checksum : b9e1dae7 - correct
Events : 37404
Device Role : Active device 1
Array State : AA ('A' == active, '.' == missing, 'R' == replacing)