Re: How to handle a RAID5 arrawy with a failing drive?

Marc MERLIN
2014-03-16T23:17:40Z

On Sun, Mar 16, 2014 at 05:12:10PM -0600, Chris Murphy wrote:
>
> On Mar 16, 2014, at 4:55 PM, Chris Murphy <lists@colorremedies.com> wrote:
>
> > Then use btrfs replace start.
>
> Looks like in 3.14rc6 replace isn't yet supported. I get "dev_replace cannot yet handle RAID5/RAID6".
>
> When I do:
> btrfs device add <new> <mp>
>
> The command hangs, no kernel messages.

Ok, that's kind of what I thought.
So, for now, with raid5:
- btrfs seems to handle a drive not working
- you say I can mount with the drive missing in degraded mode (I haven't
tried that, I will)
- but no matter how I remove the faulty drive, there is no rebuild on a
new drive procedure that works yet

Correct?

Thanks,
Marc
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