[DRBD-user] Maximum size of DRBD configuration?

Philipp Reisner philipp.reisner at linbit.com
Sun Jan 18 21:14:23 CET 2004

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

> > We found through trial and error that drbd in our setup only seems
> > to allow about 2.6 TB of total space to be configured.   drbdsetup
> > fails to initialize properly any device that will go over that
> > amount of total space configured, although the devices created
> > up to that point continue to work fine.
> >
> > Is this something that is dependent on kernel tuning and the like,
> > is it limited by something hardcoded into drbd, or is there perhaps
> > some hardware limitation?
> >
> > If it's simply that drbd can't handle any more, will the problem
> > be fixed by upgrading to 0.7 at some point in the future?

Yes, 32bit ought to be enough for every one :) 

Lars already suggested a scheme to use HighMem Pages for the BitMap
in the future. -- That we definitely go in, e.g. into drbd-0.7.1 
or so. ( We need to implement it first :) 


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