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how to rebuild RAID 10 array
Posted on 2004-10-03
I have 4x120GB SCSI hard disks grouped together using RAID 10 on Red Hat ES Linux 3.0.
During a power cut, one of the disks failed on me. The system recovered (as RAID 10 is
designed to do!), however the system is now at risk because there are only three working disks.
Can anyone describe or point me to an article that describes how I can replace this
disk and rebuild the array.
Would appreciate step by step guidance.
Many thanks
During a power cut, one of the disks failed on me. The system recovered (as RAID 10 is
designed to do!), however the system is now at risk because there are only three working disks.
Can anyone describe or point me to an article that describes how I can replace this
disk and rebuild the array.
Would appreciate step by step guidance.
Many thanks
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5 Comments
Go to the following link:
http://www.runtime.org/raid.htm
Reconstruct RAID 0 at fierst that RAID 1.
Cyber
http://www.runtime.org/raid.htm
Reconstruct RAID 0 at fierst that RAID 1.
Cyber
use raidhotadd to put the drive back into the array.
See section 8 of http://www.tldp.org/HOWTO/Software-RAID-HOWTO.html. Note you might have to use raidhotremove to take the faulty drive out of the array but make sure you remove the right one! It might already be rebuilding, have you looked at /proc/mdstat to check the status?
See section 8 of http://www.tldp.org/HOWTO/Software-RAID-HOWTO.html. Note you might have to use raidhotremove to take the faulty drive out of the array but make sure you remove the right one! It might already be rebuilding, have you looked at /proc/mdstat to check the status?
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