On Sun, 12 Mar 2000, Ed Byrne wrote:
> I just set up a RAID on a machine with the following setup.
>
> Linux 2.2.14 + raid-2.2.14-B1 patch, raidtools-19990824-0.90
>
> sda1: boot partition (256mb)
> sda2: raid-disk 0 (8.5gb)
>
> sdb1: swap (256mb)
> sdb2: raid-disk 1(8.5gb)
>
> Setup was fine and it worked great, until I actually tested drive loss.
> I pulled sdb2, and it detected the loss and said it was continuing in
> degraded mode as I expected. Then I hard rebooted the machine. After
> that, it refused to use the second drive in the mirror.
Yes, the kernel doesn't automagically snatch any new block-device it sees
and starts using it as a new mirror. That's on purpose.
> The md recovery thread does not seem to see that it is there, after it
> refuses to use it. I've tried dd'ing sda2 to sdb2, zero'ing sdb2,
> changing the partition type to ext2 and then back, and still get the same
> error. Manually stopping and restarting using raidstop/raidstart seems to
> do the same thing, except it doesn't even see sdb2 at all. /etc/raidtab
> and raid1.conf are both set up properly according to the documentation.
How about manually adding (with the hotadd command) the drive ?
[snip]
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