Re: Varitas Cluster Software + Oracle Clusterware Installation
- From: Dan Norris <dannorris@xxxxxxxxxxxxx>
- To: gulzar.arif@xxxxxxxxx, oracle-l@xxxxxxxxxxxxx
- Date: Tue, 28 Aug 2007 13:45:28 -0700 (PDT)
If you just want a failover cluster (single-instance database that runs on one
server at any given time), then VCS can handle that by itself (no need for
Oracle Clusterware).
If you're building an Oracle RAC cluster, you'll install VCS (actually, SFOR)
first and then install Oracle Clusterware. You *must* have Oracle
Clusterware--it is not optional. However, the "magic" is that when Oracle
Clusterware is installed "on top" of VCS, it detects VCS and integrates with it
by delegating cluster membership duties and authority to VCS.
Short answer: for RAC, yes, you need both. For failover, VCS is fine by itself.
Dan
----- Original Message ----
From: Arif Gulzar <gulzar.arif@xxxxxxxxx>
To: oracle-l@xxxxxxxxxxxxx
Sent: Tuesday, August 28, 2007 3:29:25 PM
Subject: Varitas Cluster Software + Oracle Clusterware Installation
In our company Management want to go for Varitas Cluster Software, i am
lost....Do we need 2 cluster software,Varitas cluster software + Oracle
Clusterware On top of that...I thought these are same thing alternative for
each other, If we are installing vcs then we dont need Oracle Clusterware? make
me right plz
Arif
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