Re: [SSI-devel] Activating DRBD-SSI subsystem via kernel bootparam

[Aneesh K. <ane...@gm...>]

On 4/22/05, Roger Tsang <rog...@gm...> wrote:
> Hi En-Chiang and Aneesh,
>=20
> I've done a preliminary review of what can be done to address full
> DRBD integration into SSI as opposed to generating a separate contrib
> package.  I think putting a "drbd" bootparam would be ideal as the
> linuxrc script can optionally start the DRBD routines.  I've already
> coded support for this in linuxrc for Fedora Core.
>=20
> The rc scripts will also check for the bootparam and act accordingly,
> with the assumption that a system with DRBD enabled expects root
> filesystem failover using DRBD.
>=20
> If such SSI cluster does not want failover using DRBD, they can setup
> their own DRBD using /etc/init.d/drbd - but their DRBD will not
> connect at the initrd boot stage.  This means if they don't specify
> the "drbd" bootparam, everything has to be done in /etc/init.d/drbd as
> it usually is on non-SSI clusters.
>=20
> Any comments?
> Also any Debian comments?
>=20

Debian already support full DRBD integraion.  I have commited changes
to generate a dummy package called openssi-drbd which will pull the
latest drbd packages from the OpenSSI debian repository.  I have
commit this as a part of devel branch.  Regarding the changes that we
have in the debian branch, debian branch require user to configure
/etc/mkinitrd/mkinitrd.conf file and recreate the initrd. After that
everything is automated. Even the upgrade is automated.

To get an idea about how drbd configuration happens in debian you can look =
at=20
http://www.openssi.org/cgi-bin/view?page=3Ddocs2/1.9/debian/README.drbd
-aneesh