Multiple RAC databases on same GI using different subnets for Public i/face
890452Sep 26 2011 — edited Oct 22 2011Hello. We are configuring a 2 node cluster. That cluster will host several RAC databases. For security reasons our networking team want to create separate subnets for the application traffic to each specific RAC database on the cluster.
E.g. application 1 has 2 application servers that will connect to RAC database PROD1 via one subnet, application 2 has 3 application servers that will connect to RAC database PROD2 via a different subnet, etc.
In addition the networking team want to configure a separate management subnet that DBAs etc. will use to administer all RAC databases and infrastructure in the cluster.
Grid Infrastructure version 11.2.0.2. Database versions will vary from 10.2.0.x to 11.2.0.2. All databases will utilise RAC.
We want to take advantage of SCAN listener functionality to support connectivity to all databases on the cluster. Forum thread 2199620 [https://cn.forums.oracle.com/forums/thread.jspa?threadID=2199620] suggests that 11gR2 supports multiple subnets, which looks to be exactly the feature we need. Please can you confirm how this works and point us to any documentation (standard docs, white papers, MOS, etc.) that might help us configure this.
Document referenced in thread 2199620 was not exactly what we were looking for, and didn't translate too well in Google Translate.
Any guidance much appreciated. Thanks, Rich.
Similar threads:
https://cn.forums.oracle.com/forums/thread.jspa?messageID=9846298? (Dual SCAN on multi homed cluster)
https://cn.forums.oracle.com/forums/thread.jspa?threadID=2199620 (scan listener in OAM VLAN)
Edited by: 887449 on 26-Sep-2011 01:41