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Hobbit cluster and DRDB

list T.J. Yang
Thu, 17 Aug 2006 17:27:37 -0500
Message-Id: <user-f1b1eea77b64@xymon.invalid>

Hi Brothers,

Just read an article in Linux Journal about using DRDB as a "cluster" filesystem for a redundant installation of sendmail and mysql. This has caused me to think that this could be a way forward as a cluster mecanism for hobbit.
Yea, I read the article as well. I was attempting  implement BB +DRBD
on RH Linux but the project stopped due to other priority.

During test phase I was able to simluate the outage of a webser server
on A to cause slave server (B) to shoot down A and take over its ip address
via private subnet in between etc ...
Currently I run a rdist job for this and then have a manual intervention for starting up hobbit on the secondary node.

I know from when I last looked at DRDB that the IO performance as a problem with BB but with Hobbit I am prety sure it should work.
I do remember the sync between two nodes was great but I didn't
really deploy bb on bother server so I don't now how it really run.
I am wondering if any of you have experienced with the DRDB/heartbeat/hobbit and what your impressions are ?
I am less interested about BB+DRBD+RHLinux combination
for implementing system monitoring clustering. Instead, I am more
interested about Hobbit+Solaris 10+Sun Cluster software.
Sorry to hijack your subject into mine.

Sun Cluster software is now free for use( see R1)

R1: http://www.sun.com/software/cluster/

tj
Regards, Thomas


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