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Bala : ) wrote:if its your test server you can make a single scan entry in /etc/hosts file.
I want to configure RAC on two node cluster with DNS(For SCAN) in my testing server.
O.S: RHEL5.4(64 bit)
Oracle Version: 11gR2(188.8.131.52)
Note: Am creating nodes in VMware ESXi server.
Just I want to know whether DNS should be configure in any one of those NODES or in separate machine.
SCAN IP entry in /etc/hosts file and settting your nslookup is a turnaround to bypass SCAN while doing installation. It wont provide any features of SCAN. If you want to use SCAN, DNS or GNS is mandatory else you can use VIP entries (as in 11gR1) to achieve TAF.
What is your aim ?? Goal?? You want to install it with / without DNS.
As per my experience, SCAN is very mandatory though we have turnaround as SCAN troubles you a lot when you do patching, cloning, migration , etc. And Yes you need differnent server / VM for configuring DNS. For your tesing server, below link may be useful.
I want to configure my Database with & without DNS. (Will try both installation in different servers)I think, you have already received a link on very good article about Oracle RAC installation without DNS and DHCP (I mean Jeffrey Hunter's article).
There is one more about Oracle RAC installation with DNS and DHCP (http://gjilevski.com/2011/10/05/build-two-node-oracle-rac-11gr2-11-2-0-3-with-gns-dns-dhcp-and-haip/).
And want to know how it forwards the client connection if a node fails.. Can anyone update the URL for this..There are a lot of information about it:
Very good videos:
Hope it helps,