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[程序员] 如何挂载 RAID6 中被踢掉的盘


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前文在 https://www.v2ex.com/t/1045372#reply14

目前使用 Ubuntu 挂载着四块盘,但是还是无法重建 RAID6 。主要原因还是四块盘的更新时间和更新次数不同步。想问下各位高手有没有办法强制将四块盘挂载到一起。我可以确定四块盘出现问题后没有发生任何写入操作。

/dev/sda3:
Magic: a92b4efc
Version: 1.2
Feature Map: 0x0
Array UUID: 10eec84e:da357c19:2c40875f:92e5302c
Name: DS918:2
Creation Time: Sun Apr 7 01:14:53 2019
Raid Level: raid6
Raid Devices: 4

Avail Dev Size: 7804592833 sectors (3.63 TiB 4.00 TB)
Array Size: 7804592768 KiB (7.27 TiB 7.99 TB)
Used Dev Size: 7804592768 sectors (3.63 TiB 4.00 TB)
Data Offset: 2048 sectors
Super Offset: 8 sectors
Unused Space: before=1968 sectors, after=65 sectors
State: clean
Device UUID: f8dc7622:979caf73:470a4b12:a91afd65

Update Time: Thu May 30 11:46:47 2024
Checksum: 4229328f - correct
Events: 19094

Layout: left-symmetric
Chunk Size: 64K

Device Role: Active device 2
Array State: ..AA ('A' == active, '.' == missing, 'R' == replacing)


/dev/sdb3:
Magic: a92b4efc
Version: 1.2
Feature Map: 0x0
Array UUID: 10eec84e:da357c19:2c40875f:92e5302c
Name: DS918:2
Creation Time: Sun Apr 7 01:14:53 2019
Raid Level: raid6
Raid Devices: 4

Avail Dev Size: 7804592833 sectors (3.63 TiB 4.00 TB)
Array Size: 7804592768 KiB (7.27 TiB 7.99 TB)
Used Dev Size: 7804592768 sectors (3.63 TiB 4.00 TB)
Data Offset: 2048 sectors
Super Offset: 8 sectors
Unused Space: before=1968 sectors, after=65 sectors
State: clean
Device UUID: 712d545e:b1c84930:b53b18c6:c3ed4886

Update Time: Thu May 30 11:46:47 2024
Checksum: eb9b3ac - correct
Events: 19094

Layout: left-symmetric
Chunk Size: 64K

Device Role: Active device 3
Array State: ..AA ('A' == active, '.' == missing, 'R' == replacing)


/dev/sdc3:
Magic: a92b4efc
Version: 1.2
Feature Map: 0x0
Array UUID: 10eec84e:da357c19:2c40875f:92e5302c
Name: DS918:2
Creation Time: Sun Apr 7 01:14:53 2019
Raid Level: raid6
Raid Devices: 4

Avail Dev Size: 7804592833 sectors (3.63 TiB 4.00 TB)
Array Size: 7804592768 KiB (7.27 TiB 7.99 TB)
Used Dev Size: 7804592768 sectors (3.63 TiB 4.00 TB)
Data Offset: 2048 sectors
Super Offset: 8 sectors
Unused Space: before=1968 sectors, after=65 sectors
State: clean
Device UUID: 4d54a772:f9b0a587:d8093250:abeb8e36

Update Time: Thu Feb 23 11:18:37 2023
Checksum: b2665d87 - correct
Events: 13539

Layout: left-symmetric
Chunk Size: 64K

Device Role: Active device 1
Array State: .A.. ('A' == active, '.' == missing, 'R' == replacing)


/dev/sde3:
Magic: a92b4efc
Version: 1.2
Feature Map: 0x0
Array UUID: 10eec84e:da357c19:2c40875f:92e5302c
Name: DS918:2
Creation Time: Sun Apr 7 01:14:53 2019
Raid Level: raid6
Raid Devices: 4

Avail Dev Size: 7804592833 sectors (3.63 TiB 4.00 TB)
Array Size: 7804592768 KiB (7.27 TiB 7.99 TB)
Used Dev Size: 7804592768 sectors (3.63 TiB 4.00 TB)
Data Offset: 2048 sectors
Super Offset: 8 sectors
Unused Space: before=1968 sectors, after=65 sectors
State: clean
Device UUID: 259f8fcf:8e2f50da:961190ab:9e6981ea

Update Time: Thu Sep 15 19:07:27 2022
Checksum: 7078d907 - correct
Events: 13533

Layout: left-symmetric
Chunk Size: 64K

Device Role: Active device 0
Array State: AAAA ('A' == active, '.' == missing, 'R' == replacing)
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