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Hello

How to mirror an additional hard drive in Red Hat?

Thanks

JB

Quote:

Originally Posted by jbouwer (Post 4156290)

Hello

How to mirror an additional hard drive in Red Hat?

Thanks

JB

Are you saying you are adding a second hard drive and want RAID 1 (mirroring) or you want to add a second hard drive and create a bit-for-bit copy of the 1st hard drive on it?

First create a raid array but use 'dmesg' to verify you device id's because it could be completely different than mine below. Just adjust the command below to fit your specific machine. The command below also assumes you don't already have a /dev/md0:

Code:

mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sdb1 /dev/sdc1

Then you'll need to format this partition:

Code:

mkfs.ext3 /dev/md0

Then you can create a mount point and mount the mirror there:

Code:

mkdir /mirror

mount /dev/md0 /mirror