[DRBD-user] How long will the primary DRBD continue to run without a secondary?

Veit Wahlich cru.lists at zodia.de
Mon Jun 18 09:01:34 CEST 2018

Hi GC,

keeping track of changed blocks is implemented using bitmaps, which are
part of the meta data on both sides. These bitmaps are always of full
size, so they will not grow by just changing blocks.

So unless you added something consuming ressources, e.g. event handlers
performing LVM snapshots to be created when the peers disconnect, a
single peer may run infinite.

Best regards,
// Veit

Am Donnerstag, den 14.06.2018, 19:07 -0500 schrieb G C:
> I know the secondary is the DR and the primary keeps track of what is
> changing but how long can it continue to run in this state before it will
> cause it to crash or not be writable any longer?  I would gather that at
> some point it would cause a lack of resources to write the changes to but
> I'm not sure and can't find any information related to it.
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