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Thread: Raid 1: does it destroy data?

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hello,
question quite simple , @ same time should sound weird people used use raids... here go!
have got 2 hard disks match in space. i'd use mdadm create raid 1, mirror one. since don't want format / erase / delete what's in primary hard disk (/dev/sda, 3 partitions), how can replicate content /dev/sdb , mirror raid tool?
work?

- install madam
- fdisk /dev/sdb , replicate sda's partitions (using filesystem "fd");
- sudo mdadm --create --verbose /dev/md0 --level=mirror --raid-devices=2 /dev/sda1 /dev/sdb1
- sudo mdadm --create --verbose /dev/md1 --level=mirror --raid-devices=2 /dev/sda2 /dev/sdb2
sudo mdadm --create --verbose /dev/md2 --level=mirror --raid-devices=2 /dev/sda3 /dev/sdb3

... , proceed...?

have page point, right documentation achieve replication of hard disk without format of source disk?
in advance

before messing raid tools suggest backup important data first different raid controllers , tools require different things, including reformat (often).


Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] Raid 1: does it destroy data?


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