Hello All,
I am currently using Raid 1 ( Mirroring setup) in my
machine( Red Hat Linux 7.2, Kernel-2.4.17). My machine
already has two IDE disks with a capacity of 2gb each.
In that, I created the raid 1 partition as follows.
Partition Device Capacity
/ ( root ) hda2 1882 MB
swap hda1 138 MB
Similarly,
/ ( root ) hdc2 1882 MB
swap hdc1 138 MB
Till yesterday, the entire mirroring setup was working
very fine. But now,my primary hard disk ( hda ) goes
off due to some disk failure. So I removed the hda
disk and started re-booting the machine with the hdc
disk which has already has the exact replica of the
hda. Now I can able to run the machine with only one
disk ( i.e.,hdc only ). But inorder to overcome this
disk failure again, I planned to insert a new spare
disk ( 2 GB ) into the machine and gave the following
command,
dd if=/dev/hdc3 of=/dev/hda3
The exact copy of the hdc was copied into the new
spare disk and further I was unable to get the new
superblock eventhough if I give the command, mkraid
raid1.conf -f --only-superblock , but I found that
there was no raid1.conf in my machine.
I tried it. But of no use. Then how can I insert my
spare disk into the machine to get the mirror copy??
Please provide me a solution to this
Thanks in Advance
Regards
Arul Anand.N
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