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I have just configured two hard drives with RAID1 via an ubuntu 10.4 installation. It is installed to boot in degraded mode.

I want to disconnect the power from the one drive and have it boot, and then put the power back and have it go back to original setup.

How do I do this?

The degredation test is simple, just remove the one hard drive, but then how do I put that removed hard drive back without having to do a full rebuild of the raid array?

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  • There is no question here.
    – psusi
    Jul 12, 2011 at 14:23
  • added the question Jul 13, 2011 at 9:18

1 Answer 1

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You can accelerate the rebuild by enabling the write-intent bitmap:

sudo mdadm /dev/md0 --bitmap=internal

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