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On Wednesday 07 September 2005 12:58, Christoph Gysin wrote: |
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> First, let me recommend you mdadm. It's a replacement for the old |
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> raidtools. *Much* better IMHO. |
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VERY much so. |
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> - Create a new RAID1 in degraded state from B2: |
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> # mdadm --create /dev/md0 --level 1 --raid-devices 2 /dev/B2 missing |
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> |
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> - Copy contents from A2 to md0 |
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> - umount A2 |
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> - add A2 to md0: |
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> # mdadm /dev/md0 --add /dev/A2 |
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Quicker method :) |
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create B1 and B2 |
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umount /dev/A2 |
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# mdadm --create /dev/md0 -l1 -n2 /dev/A2 /dev/B2 |
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You CAN create a mirror of an existing partition, and NOT lose data. |
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I know, I've done it. |
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You can also re-create an existing array (instead of the obvious re-assembly), |
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and keep all your data. |
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The software raid drivers and tools are surprisingly intelligent. |
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But as always, keep backups :) |
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-- |
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Mike Williams |
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-- |
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gentoo-user@g.o mailing list |
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