drbd-user March 2010 archive
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drbd-user: Re: [DRBD-user] Detection of Logical Volume on nested

Re: [DRBD-user] Detection of Logical Volume on nested LVM

From: Lars Ellenberg <lars.ellenberg_at_nospam>
Date: Fri Mar 12 2010 - 09:20:24 GMT
To: drbd-user@lists.linbit.com

On Fri, Mar 12, 2010 at 09:54:07AM +0100, Olivier LAMBERT wrote:
> So, always the same problem without understanding why it works when
> all iSCSI clients are connected to the same DRBD, and no way to
> synchronize lvcreate/lvremove between clients on different DRBD hosts,
> despite they are primary/primary..
>
> I search a solution to the LVM side, but answers were "check your DRBD
> replication link". :(

CHECK YOUR CACHE CONSISTENCY.

As I told you before,

> >> If you have caches on "the way" to "the other client"
> >> that happen to happily cache stale content (are "incoherent"),
> >> there is nothing DRBD can do about it.

(and cLVM would not be able to do anything about it either).

So.
Please. Check. That.

-- : Lars Ellenberg : LINBIT | Your Way to High Availability : DRBD/HA support and consulting http://www.linbit.com DRBD® and LINBIT® are registered trademarks of LINBIT, Austria. __ please don't Cc me, but send to list -- I'm subscribed _______________________________________________ drbd-user mailing list drbd-user@lists.linbit.com http://lists.linbit.com/mailman/listinfo/drbd-user