[DRBD-user] Maximum number of drbd devices supported?

Lars Ellenberg lars.ellenberg at linbit.com
Wed Mar 16 22:31:36 CET 2011

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


On Wed, Mar 16, 2011 at 09:45:23PM +0530, siva subramani wrote:
> >> Hi,
> >>
> > >I have seen one of the document that drbd will support upto 255 devices.
> >>
> >> I want to know would it be possible to increase this number??
> >>
> 
> >Yes
> 
> >> I would be appreciated for your quick response.
> >>
> 
> >Quick, and short :)
> 
> Could you guide me how it can be acheived

No.
But feel free to contact sales at linbit.com
with a feature sponsoring offer ;-)

> and what is the maximum number of
> devices can be supported?

In theory, there are 2 ** 20 minor devices possible in the linux kernel,
so roughly one million.  With some more work, we could even go beyond that.

What would be the use case?


-- 
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com



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