Friday, January 11, 2008

Step by Step Installation of Shared Application Tier File System - Mulit Node Systems

In this post I am going to discuss Step by Step Installation of Shared Application Tier File System in Multi-Node Systems Environment.

By Default Rapid Install confiures multi-node systems to use a shared Application tier file system.

Step1:You need follow some pre-install steps before you proceed with Rapid Install

- For Installation assign and allocate shared file system
- Create Application user with same UID and GUID on all application nodes involved in this configuration.
- The filesytem shared accross all nodes needs have same layout and must be mounted.

Step2: Proceed with running Rapid Install on each node and mention the mount points.
In this configuration step you need choose nodes to configure. If you want add application nodes which you required additionally click on "Add Server" under Node information screen on each additional node to be configured.Paths needs to be same on all application nodes (i.e,APPL_TOP,COMMON_TOP,10.1.2 ORACLE_HOME (TOOLS),10.1.3 ORACLE_HOME (Web).


All the below TOP's are shared
COMMON_TOP: /u01/share/apps/apps_st/ramcomn
APPL_TOP: /u01/share/apps/apps_st/ramappl
Tools ORACLE_HOME: /u01/share/apps/tech_st/ramora/10.1.2
Web ORACLE_HOME: /u01/share/apps/tech_st/ramora/10.1.3

Special Note:1)Select Shared Filesystem and primary node to enable the node being added to share the application tier file system.

2) If the Primary application node is not the same as database node , run Rapid Install on each added application node as well as on the primary application node. On Configuration screen of Rapid install select "Load the following saved configuration" and enter database connect string.


Pravin said...

HI Ramnik,

Could you please shed some light on shared file system you have used, i am more intrested in infrastructure requirement for shared file system. I am on SUN.


AppsFusion said...

You need Shared file system which you need to decide based on your requirement. Oracle doesn't certify any file system. Please see steven chan's blog for detail "".

Infrastructure requirement depend on your business need. What all services you want to run , do you want to run distribute the services or want implement all services on same node.

Let me know what you are looking for.

Mehmood Rehman said...

nice post

Unknown said...

Have you ever worked on consolidating a multi-node APPL_TOP'S i.e Merge and share the nodes in a shared application tier scenario?

AppsFusion said...

Hi Clive,


If you have access My Oracle Support then you can follow the shared APPL_TOP Note specific to your EBS . Also you can find the same information on Steven chan blog "".

The basic difference in 11i and R12 filesystem is, In R12 APPL_TOP is Unified. So it doesn't matter from which node you want to copy your APPL_TOP.

For example if you have two nodes, one is running Forms/Concurrent Processing Node and second is Web Node. You need to take the backup of your first node (or node of your choice) and restore the file system to . For example Node1 (Forms/CP) restored to . All customization for Node 1 is in place at file system level. Copy all the custom files from Node 2 (Web tier) to . Rest you need to follow the ML Note for updating CONTEXT_FILE-xml file for all services needs to be enabled on your first node, copy your $INST_TOP on local file system of your Node1. Now it is your wish to add node2 with all ( the services or specific as per your requirement.( node2 - Only form/CP or only Web Service).

Hope this help.

Unknown said...

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