Adi, Here is a link to the Sun Cluster 3.2 1/09 Documentation Center, which provides links to specific topics about the cluster software, including quorum. Except for package-installation procedures, most information in these documents is also valid for Open HA Cluster or Solaris Cluster Express configurations:
http://docs.sun.com/app/docs/doc/820-4683/fxjbo?a=view If you need to reconfigure your two machines from two single-node clusters into a two-node cluster, and you don't have or don't want to use storage that is connected to both machines, you can use Quorum Server software to set up a third machine to provide the necessary quorum vote. If you don't have or don't want to use the hardware needed to set up the private-network interconnect between the two machines, you could instead reinstall the machines with OpenSolaris 2009.06 and Open HA Cluster 2009.06 and use virtual NICs to handle private-network communication between the cluster nodes. (This capability is not available with Solaris Cluster Express.) If you are interested, here is a link to the installation instructions for Open HA Cluster 2009.06: http://docs.sun.com/app/docs/doc/820-7821 Hope this helps. Lisa Shepherd Sun Cluster Technical Publications "We're the M in RTFM" On 06/10/09 08:18, Tim Read - Staff Engineer Solaris Availability Engineering wrote: > Adi, > > Your question seems slightly confused. If you want to implement a > fail-over Apache service you need one two node cluster, not two single > node clusters. Separate clusters are only relevant to disaster > recovery systems, usually using a 2 node cluster and a single node > cluster with the addition of the Sun Cluster Geographic Edition software. > > A quorum device, usually a disk, allows the remaining cluster node to > stay up when it loses contact with the other cluster node. > > Please read the Solaris Cluster manuals for more info. In particular > the concepts guide and then the Apache Data Service guide. > > Hope that helps, > > Tim > --- > > > On 06/10/09 16:07, Aditya wrote: >> Hello All , >> I am new to clusters and want to try to implement failover on an >> Apache Tomcat server. >> I have installed SXCE and configured a single node cluster on 2 >> computers.I would now like to test how Sun cluster failover takes >> place.CAn anybody guide me.Is there any documentation of steps >> available.Also what is a quorum? >> Regards, >> Adi. >
