[DRBD-user] data-integrity-alg in dual-Primary setup

Lars Ellenberg lars.ellenberg at linbit.com
Fri Sep 17 21:50:25 CEST 2010

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


On Fri, Sep 17, 2010 at 05:28:44PM +0200, Fabrice Charlier wrote:
> On 09/17/2010 02:40 PM, Lars Ellenberg wrote:
> 
> >Maybe disable the drbd level checksum, and trust the TCP checksum.
> 
> And take the risk of corrupt one mirror? ;-)
> 
> >>If not, are you planning to implement this feature?
> >
> >Maybe.
> >But it does not have particular priority.
> >Maybe we rather wait for the VM and VFS layer to fix it for us.
> 
> If somebody else implement this feature,
> are you ready to merge it with the main branch of drbd?

If it is "correct", why not.

It is not possible in protocol A.
B and C should be doable.

One of the interesting aspects is that
write ordering may be violated,
without anyone knowing it.

BTW, feature sponsoring may be an option, too ;-)


-- 
: 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



More information about the drbd-user mailing list