https://raid.wiki.kernel.org/index.php/Linux_Raid#When_Things_Go_Wrogn
Especially
https://raid.wiki.kernel.org/index.php/Asking_for_help
More will follow but we need this info.
Cheers,
Wol
And the output of examine:
root@nas:~# mdadm -E /dev/sda1
/dev/sda1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x5
Array UUID : d7d800b3:d203ff93:9cc2149a:804a1b97
Name : nas:0 (local to host nas)
Creation Time : Sun May 17 00:23:42 2020
Raid Level : raid5
Raid Devices : 5
Avail Dev Size : 23437504512 (11175.87 GiB 12000.00 GB)
Array Size : 46875009024 (44703.49 GiB 48000.01 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262056 sectors, after=0 sectors
State : active
Device UUID : 64b8c8bd:400cf9d1:d5161aac:4b8ac29a
Internal Bitmap : 8 sectors from superblock
Reshape pos'n : 0
Delta Devices : 1 (4->5)
Update Time : Mon May 25 16:05:38 2020
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : d9c3b859 - correct
Events : 38602
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 0
Array State : AAAAA ('A' == active, '.' == missing, 'R' == replacing)
======================================
root@nas:~# mdadm -E /dev/sdb1
/dev/sdb1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x5
Array UUID : d7d800b3:d203ff93:9cc2149a:804a1b97
Name : nas:0 (local to host nas)
Creation Time : Sun May 17 00:23:42 2020
Raid Level : raid5
Raid Devices : 5
Avail Dev Size : 23437504512 (11175.87 GiB 12000.00 GB)
Array Size : 46875009024 (44703.49 GiB 48000.01 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262056 sectors, after=0 sectors
State : active
Device UUID : d1f20899:f22a1267:6525deb0:e109960c
Internal Bitmap : 8 sectors from superblock
Reshape pos'n : 0
Delta Devices : 1 (4->5)
Update Time : Mon May 25 16:05:38 2020
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : c0b49f9e - correct
Events : 38602
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 1
Array State : AAAAA ('A' == active, '.' == missing, 'R' == replacing)
=========================================
root@nas:~# mdadm -E /dev/sdc1
/dev/sdc1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x5
Array UUID : d7d800b3:d203ff93:9cc2149a:804a1b97
Name : nas:0 (local to host nas)
Creation Time : Sun May 17 00:23:42 2020
Raid Level : raid5
Raid Devices : 5
Avail Dev Size : 23437504512 (11175.87 GiB 12000.00 GB)
Array Size : 46875009024 (44703.49 GiB 48000.01 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262056 sectors, after=0 sectors
State : active
Device UUID : 6e6c5cd4:0f3d0695:fac0399d:060554d8
Internal Bitmap : 8 sectors from superblock
Reshape pos'n : 0
Delta Devices : 1 (4->5)
Update Time : Mon May 25 16:05:38 2020
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : e215c214 - correct
Events : 38602
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 2
Array State : AAAAA ('A' == active, '.' == missing, 'R' == replacing)
============================================
root@nas:~# mdadm -E /dev/sdd1
/dev/sdd1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x5
Array UUID : d7d800b3:d203ff93:9cc2149a:804a1b97
Name : nas:0 (local to host nas)
Creation Time : Sun May 17 00:23:42 2020
Raid Level : raid5
Raid Devices : 5
Avail Dev Size : 23437504512 (11175.87 GiB 12000.00 GB)
Array Size : 46875009024 (44703.49 GiB 48000.01 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262056 sectors, after=0 sectors
State : active
Device UUID : 999c5ee2:180dc99f:7c65cac5:d46fac89
Internal Bitmap : 8 sectors from superblock
Reshape pos'n : 0
Delta Devices : 1 (4->5)
Update Time : Mon May 25 16:05:38 2020
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : d4c3d19a - correct
Events : 38602
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 3
Array State : AAAAA ('A' == active, '.' == missing, 'R' == replacing)
===============================================
root@nas:~# mdadm -E /dev/sde1
/dev/sde1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x5
Array UUID : d7d800b3:d203ff93:9cc2149a:804a1b97
Name : nas:0 (local to host nas)
Creation Time : Sun May 17 00:23:42 2020
Raid Level : raid5
Raid Devices : 5
Avail Dev Size : 23437504512 (11175.87 GiB 12000.00 GB)
Array Size : 46875009024 (44703.49 GiB 48000.01 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262056 sectors, after=0 sectors
State : active
Device UUID : 29cfb720:59627867:f11153ce:443a6395
Internal Bitmap : 8 sectors from superblock
Reshape pos'n : 0
Delta Devices : 1 (4->5)
Update Time : Mon May 25 16:05:38 2020
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : ef0bd050 - correct
Events : 38602
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 4
Array State : AAAAA ('A' == active, '.' == missing, 'R' == replacing)
========================
root@nas:~# mdadm -E /dev/sda
/dev/sda:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
root@nas:~# mdadm -E /dev/sdb
/dev/sdb:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
root@nas:~# mdadm -E /dev/sdc
/dev/sdc:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
root@nas:~# mdadm -E /dev/sdd
/dev/sdd:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
root@nas:~# mdadm -E /dev/sde
/dev/sde:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
