[DRBD-user] how to drbd the / filesystem device

Bart Coninckx bart.coninckx at telenet.be
Mon May 3 19:50:18 CEST 2010

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


On Monday 03 May 2010 19:46:02 Alex Dean wrote:
> On May 3, 2010, at 12:27 PM, Bart Coninckx wrote:
> > On Monday 03 May 2010 19:26:32 Joao Ferreira gmail wrote:
> >> Hello all,
> >>
> >> I've been reading and trying out drbd for the last 3 days. I know
> >> this
> >> may sounds a bit crazy, but... here goes: I realy need to drbd my "/"
> >> block device.
> >>
> >> I have a basic understanding of drbd and most examples I've seen so
> >> far
> >> point to drbd'ing a specific partition apart from the "core" OS
> >> partitions like "/", "/var";
> >>
> >> I don't know if drbd'ing the "/" partition is acutally an
> >> impossibility
> >> "just because" or if there are ways to work around this and make the
> >> kernel be able to boot the drbd and mount the root filesystem on it.
> >>
> >> Like I said: I really don't know if this is a simple thing or a very
> >> complex workaround or even totally impossible.
> >>
> >> My problem is simple: boss want's it :)
> >>
> >> Any pointers or some light on the matter would be very much
> >> appreciated.
> >>
> >> Cheers
> >> Joao
> >
> > I've read before on this list it is near to impossible. But I wonder
> > what
> > would happen of you would put something on DRBD and to a pivot root
> > to it.
> 
> I'm not an expert by any means, but the first major hurdle I see is :
> How would the secondary node operate if it can't have / mounted?
> Perhaps you're talking about running primary/primary, which I don't
> have direct experience with.
> 
> alex
> 

Also: why does your boss want it?

B.



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