Re: How to handle a RAID5 arrawy with a failing drive? -> raid5 mostly works, just no rebuilds

Marc MERLIN
2014-03-20T00:46:52Z

On Thu, Mar 20, 2014 at 01:44:20AM +0100, Tobias Holst wrote:
> I tried the RAID6 implementation of btrfs and I looks like I had the
> same problem. Rebuild with "balance" worked but when a drive was
> removed when mounted and then readded, the chaos began. I tried it a
> few times. So when a drive fails (and this is just because of
> connection lost or similar non severe problems), then it is necessary
> to wipe the disc first before readding it, so btrfs will add it as a
> new disk and not try to readd the old one.

Good to know you got this too.

Just to confirm: did you get it to rebuild, or once a drive is lost/gets
behind, you're in degraded mode forever for those blocks?

Or were you able to balance?

Marc
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