In OpenAIS for example, in /etc/ais/openais.conf you have a directive
called interface. In this directive you specify a ringnumber,
bindnetaddr, mcastaddr and mcastport. Configuring 2 communication
channels means using adding rrp_mode: passive, ringnumber 0 and
ringnumber 1, two interface directives in which you use different
bindnetaddr IP addresses (ex: 10.0.0.1 and 10.0.0.2, or whatever IP's
you use, but preferably each IP address should be assigned to a
different network interface), two different mcastaddr multicast groups
(or mcastport, but I'd recommed different mcastaddr's in the range of
239.x.x.x).
The principle behind it is if one communication channel (network card,
IP address connectivity, multicast group/port) fails, the other one is
still there for redundancy. I see this similar to the way ring network
topologies work, without the token.
Regards,
Dan.
p.s.: Andrew, nice to have you back, to paraphrase a famous quote "Mr.
Anderson. Welcome back, we missed you."
lxnf9...@comcast.net wrote:
The DRBD manual says
It is absolutely vital to configure at least two independent OpenAIS
communication channels for this functionality to work correctly.
My Google'n has not yielded any results in the how to do this department
I have DRBD configured and working properly with one channel
Where can I find info to add a second channel
Richard
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Project Home: http://www.clusterlabs.org
Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs:
http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
--
Dan FRINCU
Systems Engineer
CCNA, RHCE
Streamwide Romania
_______________________________________________
Pacemaker mailing list: Pacemaker@oss.clusterlabs.org
http://oss.clusterlabs.org/mailman/listinfo/pacemaker
Project Home: http://www.clusterlabs.org
Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
