Continue......
# mdadm
–detail /dev/md0 - to see the raid device details
# mdadm
/dev/md0 --fail /dev/sdb3 - to do
manual failure of disk
To see
the detail of raid device and any failed disks
# mdadm
/dev/md0 --remove /dev/sdb3 -
Removing failed drive from RAID
# mdadm
/dev/md0 --add /dev/sdb4 - Adding
New disk to RAID Device
To
Destroy RAID Device and its related disk completely wipe
# umount
/raid - to un mount the file
system
# mdadm
–stop /dev/md0 - Stopping RAID Device
# mdadm
–remove /dev/md0 - to remove RAID
Device
# fdisk
/dev/sdb use d to delete all the
disks from OS
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