Problem with Raid 10 after power failure.
Posted: 2021/06/13 10:21:18
I have 1 server that using RAID 10 software. However after recent power failure the server no longer can boot ans stuck at grub rescue.
Using ls command for all device n the server does not detect the content thus cannot reinstall grub.
Using rescue mode to at least assemble the raid also fail.
lsblk command
Command mdadm examine
Using ls command for all device n the server does not detect the content thus cannot reinstall grub.
Using rescue mode to at least assemble the raid also fail.
lsblk command
Code: Select all
NAME FSTYPE LABEL UUID MOUNTPOINT
sda1 xfs fe29ddb2-0a44-4740-b765-d23ab4336dee /boot
└─sda
sdb1 isw_raid_member
└─sdb isw_raid_member
sdb2 isw_raid_member
└─sdb isw_raid_member
sdc1 isw_raid_member
└─sdc isw_raid_member
sdc2 isw_raid_member
└─sdc isw_raid_member
sdd isw_raid_member
sde isw_raid_member
centos-root xfs 078037f6-03c5-420f-8c7e-7b6962166265 /
└─sda2 LVM2_member rKiRUb-v32S-v1xQ-exAi-b96u-KWWc-0EAURN
└─sda
centos-swap swap 4ca8dbe7-523d-475f-a8d5-3f3d9758b061 [SWAP]
└─sda2 LVM2_member rKiRUb-v32S-v1xQ-exAi-b96u-KWWc-0EAURN
└─sda
centos-home xfs 9575bd3d-b397-4cbd-9af8-347264958212 /home
└─sda2 LVM2_member rKiRUb-v32S-v1xQ-exAi-b96u-KWWc-0EAURN
└─sda
Command mdadm examine
Code: Select all
/dev/sdb:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.2.01
Orig Family : 3b433edb
Family : 3b433edb
Generation : 00034ee1
Creation Time : Unknown
Attributes : All supported
UUID : 2107ed16:4510c3f0:16f8ca12:a60b8645
Checksum : 94c47391 correct
MPB Sectors : 2
Disks : 4
RAID Devices : 1
Disk00 Serial : 0702068A00008785
State : active
Id : 00000000
Usable Size : 468851726 (223.57 GiB 240.05 GB)
[VolRaid10]:
Subarray : 0
UUID : 1afd8bb1:b4cee853:f06be87c:78890be6
RAID Level : 10
Members : 4
Slots : [UUUU]
Failed disk : none
This Slot : 0
Sector Size : 512
Array Size : 890863616 (424.80 GiB 456.12 GB)
Per Dev Size : 445432072 (212.40 GiB 228.06 GB)
Sector Offset : 0
Num Stripes : 1739968
Chunk Size : 64 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : dirty
RWH Policy : off
Volume ID : 1
Disk01 Serial : 079A150400071953
State : active
Id : 00000001
Usable Size : 468851726 (223.57 GiB 240.05 GB)
Disk02 Serial : 070206EF00007830
State : active
Id : 00000002
Usable Size : 468851726 (223.57 GiB 240.05 GB)
Disk03 Serial : 07050DF700047881
State : active
Id : 00000003
Usable Size : 468851726 (223.57 GiB 240.05 GB)