[DRBD-user] Limit for number of /dev/drbdXXX devices

Philipp Reisner philipp.reisner at linbit.com
Thu Feb 9 10:48:33 CET 2006

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


Am Mittwoch, 8. Februar 2006 08:39 schrieb Damian Pietras:
> Dnia wtorek 07 lutego 2006 22:42, Philipp Reisner napisał:
> > Am Montag, 6. Februar 2006 15:32 schrieb root:
> > > Hi,
> > >
> > > What is the limit for number of DRBD devices? I've tried this:
> > >
> > > modprobe drbd minor_count=255
> > >
> > > And I get:
> > >
> > > drbd: ran out of memory
> >
> > What is the usage scenario ?
> > Do you plan to go into production with such a high number ?
> >
> > Might it be more suitable for this to use LVM on top of DRBD ?
> > (Not that I have done it up to now, I am just thinking loud about
> >  the justification for such a high number of replicated block
> >  devices...)
>
> Thanks for your answer.
>
> We do the opposite thing, we need to set replication separatelly for each
> logical volume. The reason for as many drbd devices as possible is simple:
> we have many logical volumes :)

Well, yes that was clear. 
My question was: Why do you have so many logical volumes ?

-Philipp
-- 
: Dipl-Ing Philipp Reisner                      Tel +43-1-8178292-50 :
: LINBIT Information Technologies GmbH          Fax +43-1-8178292-82 :
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