From: Nix <nix@esperi.org.uk>
To: "Dr. Uwe Meyer-Gruhl" <f+gmane@congenio.de>
Cc: linux-raid@vger.kernel.org
Subject: Re: Problems with device-mapper on top of RAID-5 and RAID-6
Date: Mon, 05 Jun 2006 21:40:18 +0100 [thread overview]
Message-ID: <87verf72vh.fsf@hades.wkstn.nix> (raw)
In-Reply-To: <448054DB.1020004@congenio.de> (Uwe Meyer-Gruhl's message of "2 Jun 2006 16:10:51 +0100")
On 2 Jun 2006, Uwe Meyer-Gruhl uttered the following:
> Neil's suggestion indicates that there may be a race condition
> stacking md and dm over each other, but I have not yet tested that
> patch. I once had problems stacking cryptoloop over RAID-6, so it
> might really be a stacking problem. We don't know yet if LVM over RAID
> is affected as well.
I've been running LVM on RAID (spanning two RAID-5 arrays) for some time
now and have had no trouble (that I know of: a check just completed OK,
so the RAID layer at least is consistent). The arrays have both IDE and
SCSI (sym53c875) components.
Of course this is a subtle and intermittent problem so this is hardly
a green light :/
--
`Voting for any American political party is fundamentally
incomprehensible.' --- Vadik
prev parent reply other threads:[~2006-06-05 20:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-02 15:10 Problems with device-mapper on top of RAID-5 and RAID-6 Dr. Uwe Meyer-Gruhl
2006-06-05 20:40 ` Nix [this message]
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