[DRBD-user] Minor not found

Lars Ellenberg Lars.Ellenberg at linbit.com
Sat Jun 12 14:24:19 CEST 2004

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


/ 2004-06-12 14:12:37 +0200
\ Helmut Wollmersdorfer:
> Lars Ellenberg schrieb:
> 
> >well, but minors from 2 upwards don't show up in _/proc/drbd_ unless you
> >load the module with a minor_count=3 (or more. default is 2) .
> >the drbd script does this.
> 
> BTW: How much memory is wasted, if I define e.g. minor_count=4 but only 
> define/start 3 DRBD-resources?

some 1 or 2 KB. per add. minor.

> If the influence on memory, cpu, latency etc. is neglectable, then the
> admin should take care, that minour_cont in drbd.conf equals number of
> /dev/nbX and at insmod.

the drbd script is intended to do the modprobe, and it counts the
defined minors, then loads exact that much, unless defined global
parameter minor_count is even larger.

> >but maybe you (or some other script, or module auto load mechanism)
> >load the drbd module already *before* the drbd start script is executed,
> >and do *not* probide the minor_count parameter.
> 
> I wonder, who or what shall do this.
> Here:
> # cat /etc/debian_version
> testing/unstable

kernel module auto loader.

> Editing /etc/modules.conf manually is not a good idea.

why not? I do it all the time ... :)

	lge



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