Re: [hobbit] HA solutions

["hobbit (at) alexkeller.de" <hobbit (at) alexkeller.de>]

Hi,

we're running a 2-node Linux-HA cluster using DRBD 8 and Xen. 
Xymon/hobbit is installed in a Xen domain.

If a node fails the Xen domain is automatically switched over to the 
other node.

With DRBD 8.0.x even live migration is possible. There is no need to use 
a cluster filesystem (like ocfs2 or gfs).
Have a look at 
http://fghaas.wordpress.com/2007/09/03/drbd-806-brings-full-live-migration-for-xen-on-drbd

Our current installation uses Debian Etch 4.0, Xen 3.2 (Backports), DRBD 
(Source) and Heartbeat 2.1.x (Backports).

Regards,
Alexander

Am 10.02.2009 16:36, Gary Baluha schrieb:
> I know there was a thread on this a while back, and if I recall, there 
> was mention that the 4.3.0 line would have features for HA.
>
> Anyway, I've been working on implementing a 2-node HA Xymon cluster 
> using LinuxHA, and probably DRBD for shared disk (I have yet to 
> implement DRBD, though).  The Apache and Xymon services fail over to 
> the other node fairly nicely, and I have successfully testing that 
> using a shared IP to the Xymon web page works.  It's still in the 
> early stages of implementation and testing, but so far it appears hold 
> hold promise.
>
> I'd be interesting in hearing about other HA solutions that have been 
> implemented (if any).  I don't recall previous mention of LinuxHA, so 
> if no one else has done it, I'll be glad to update the list with my 
> progress.