RE: Multiple Instances and 9iRAC

[Pete Sharman]

Title: Message

RAC is a multiple instance one database configuration.  Different instances on different nodes accessing a single database on shared disk.   Can you have multiple RAC databases running in a cluster?  Sure, if the machine has enough resources.  That's about as close as we can say without testing it.  I'd be surprised to see the interconnect flood because of three instances though. Pete "Controlling developers is like herding cats." Kevin Loney, Oracle DBA Handbook "Oh no, it's not.  It's much harder than that!" Bruce Pihlamae, long-term Oracle DBA   -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Thompson, Todd Sent: Friday, March 14, 2003 10:29 AM To: Multiple recipients of list ORACLE-L Subject: Multiple Instances and 9iRAC   My company is currently considering using Oracle 9i RAC. One of the proposed environments is to have multiple oracle instances (3 or more) configured on a 4-8 node RAC cluster. Does anyone have any insights as to the viability of this implementation?  Will the high speed inter connect be able to handle the traffic from multiple instances?  I always thought of RAC as a single instance implementation with each instance needing its own cluster...........