From: Krzysztof Halasa <khc@pm.waw.pl>
To: Michael Tokarev <mjt@tls.msk.ru>
Cc: Neil Brown <neilb@suse.de>, Alexandre Oliva <aoliva@redhat.com>,
linux-raid <linux-raid@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: modifying degraded raid 1 then re-adding other members is bad
Date: Tue, 08 Aug 2006 21:17:05 +0200 [thread overview]
Message-ID: <m3fyg7m40e.fsf@defiant.localdomain> (raw)
In-Reply-To: <44D8732C.2060207@tls.msk.ru> (Michael Tokarev's message of "Tue, 08 Aug 2006 15:19:08 +0400")
Michael Tokarev <mjt@tls.msk.ru> 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
next prev parent reply other threads:[~2006-08-08 19:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-08 9:38 modifying degraded raid 1 then re-adding other members is bad Alexandre Oliva
2006-08-08 11:12 ` Neil Brown
2006-08-08 11:19 ` Michael Tokarev
2006-08-08 19:17 ` Krzysztof Halasa [this message]
2006-08-08 22:33 ` Neil Brown
2006-08-08 22:30 ` Neil Brown
2006-08-09 6:35 ` Jan Engelhardt
2006-08-09 23:18 ` Neil Brown
2006-08-09 9:01 ` Helge Hafting
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