Oracle Clusterware V/S Sun Cluster 3.x For Two node Oracle RAC Deployments
Hello Experts
I am trying to find out some info Like Pros/cons & Advantages and disadvantages of Deploying Two Node Oracle RAC using oracle's Clusterware & the same info for deployment of Oracle RAC using Sun Cluster 3.x .........appretiate your views on the same ........is it better to use oracle clusterware instead of Sun Cluster 3.x ......since the cluster products from oracle might be well integrated with Oracle's DataBase...& apart from that may be better you have single vendor supporting end to end rac deployment ? any views .........pls share
Thanks in Advance
regards,
Nilesh
# 1
Hi,
first I would like to point out, that it is not an either/or question. You cannot run Oracle 10g RAC with Oracle's clusterware. That was still possible with 9i, but not with 10g. So the question is: What are the benefits or disadvantages of running CRS/Clusterware with Sun Cluster 3.x. I can only see benefits in doing so.
- You combine the best of both worlds, a clustering solution that handles the DB components, that comes with the DB, and has been implemented by the DB vendor - combined with a clustering infrastructure that is tightly integrated into the OS, that has been implemented by the OS vendor
RAC will always run on an OS supported by another vendor; so you'll never have this end to end RAC experience.
- keep in mind that clusterware is a portable clustering solution; therefor it cannot be integrated well enough into all of the OSes it is designed to run on; that's what comes with Sun Cluster:
- failure fencing on the disks
- out of the box HA interconnects
- better and faster node failure detection
- single device namespace
- robust heartbeat
- etc.
There is a whitepaper coming soon on this topic. So stay tuned
Hartmut
# 2
I just wanted to try and clarify what Hartmut said. First, when I talk about Oracle Clusterware and RAC, it implies Oracle 10g and not 9i because Clusterware only became available with 10g.
Next, you can run Oracle RAC on Solaris/SPARC or Solaris/x86/x64 without Sun Cluster, i.e. just using Clusterware. However, I would recommend using Sun Cluster for all the reasons that Hartmut mentions. The whitepaper that I have authored, and to which Hartmut and others contributed, discusses these benefits in detail. All being well, the paper will be available soon.
Tim
