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

Damian Pietras damian.pietras at open-e.com
Wed Feb 8 08:39:07 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.


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 :)



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