Re: modifying degraded raid 1 then re-adding other members is bad

Michael Tokarev [off-list ref] writes:

Why we're updating it BACKWARD in the first place?

Another scenario: 1 disk (of 2) is removed, another is added, RAID-1
is rebuilt, then the disk added last is removed and replaced by
the disk which was removed first. Would it trigger this problem?

Also, why, when we adding something to the array, the event counter is
checked -- should it resync regardless?

I think it's a full start, not a hot add. For hot add contents of
the new disk should be ignored.
-- 
Krzysztof Halasa