[DRBD-user] DRBD sync starts over again and again

Lars Ellenberg lars.ellenberg at linbit.com
Sun Jan 13 21:15:14 CET 2008

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

On Sat, Dec 29, 2007 at 03:18:32PM +0100, Lars Ellenberg wrote:
> On Sat, Dec 29, 2007 at 10:44:17AM +0100, Harald Rinker wrote:
> > Hello Lars,
> please avoid html mail (at least on mailing lists).
> and top posting is not a good habbit either.
> > I use Debian Etch Standard Kernel k713 2.6.18-4-amd64 and k641 2.6.18-5-686
> > and first i used drbd8 from backports now 8.0.8 from linbit website compiled as
> > module with the kernel headers
> in that case, 
>  it could be a bug in drbd
>    somebody else should have noticed, there are lots of people using
>    that kernel, including us, with varying configurations.


you DID hit a bug in drbd,
and no one (including us) did notice.

that bug was only visible with protocol A,
and multipage bios.

that means it would NOT show up with protocol B or C,
or with ext3, 
or when using any fs on top of lvm on top of drbd on top of anything,
or when using any fs on top of drbd on top of lvm or md raid0/5/10.

it would show up e.g. when using xfs on top of drbd
on top of bare sata/scsi or md raid1.

workaround: see above, for when it does NOT show up.

the fix is there:

and will be in the next releases.  yes, that means that we will likely
see yet an other release of drbd 8.2 within the next few days.


cheers anyways,
and keep complaining!


: Lars Ellenberg                           http://www.linbit.com :
: DRBD/HA support and consulting             sales at linbit.com :
: LINBIT Information Technologies GmbH      Tel +43-1-8178292-0  :
: Vivenotgasse 48, A-1120 Vienna/Europe     Fax +43-1-8178292-82 :
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