[DRBD-user] Reproduceable error - creating a single directorycauses drbd to fail

Ross S. W. Walker rwalker at medallion.com
Fri Feb 9 16:44:16 CET 2007

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

I think what Lars was saying is:
Do not mkfs on the initial device, mkfs on the /dev/drbdX device,
because the last 128MB on the initial device will be eaten for


	From: drbd-user-bounces at lists.linbit.com
[mailto:drbd-user-bounces at lists.linbit.com] On Behalf Of Dan Gahlinger
	Sent: Friday, February 09, 2007 10:42 AM
	To: drbd-user at lists.linbit.com
	Subject: Re: [DRBD-user] Reproduceable error - creating a single
directorycauses drbd to fail
	Yes, I don't really follow that.
	the stuff about "shrinking the partition".
	I resized the partition, but that just makes it worse.
	Definitely missing something there.
	Which probably explains why using the other meta-disk type
	On 2/8/07, Lars Ellenberg <Lars.Ellenberg at linbit.com> wrote: 

		/ 2007-02-08 18:17:20 -0500
		\ Dan Gahlinger:
		> Lars, could be.
		> I meant "no" in that one point.
		> I was able to "fix" the problem. By changing the
metadisk to a device 
		> instead of internal.
		> mkdir does not show the same problem.
		> btw mystery piece, when I use Reiser or XFS, I can't
get drbd to work.
		> always get an error.
		> I'll scan through the logs and see what I can find,
the config is pretty 
		> basic.
		> Take the drbd.conf from the same
(share/packages...etc) and make only minor
		> changes, thus:
		> on amd {
		>    device     /dev/drbd0;
		>    disk       /dev/sda3; 
		>    address;
		>    meta-disk  internal;
		> }
		> I entered a "fake" second system (whether I do it with
the systems connected 
		> or not made no difference so I'm just trying to simply
it), as I'm trying to
		> only make it work on one system for now.
		> then I used:
		> /etc/init.d/drbd start
		> drdbsetup /dev/drbd0 primary --do-what-I-say 
		> mount /dev/drbd0 /test
		> cd /test
		> tar -xvf /test.tar
		so. you use internal drbd metadata,
		but you created the file system on the lower level
		ho hum.  no further comment.
		I guess you get to it sooner or later :-> 
		I give you one further hint:
		in the kernel log, just before ext3 will remount
		it will say "access beyond end of device".
		> >never heard of what you describe,
		> >unless it was user error -- or bad hardware. 
		: Lars Ellenberg                            Tel
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		: LINBIT Information Technologies GmbH      Fax
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