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Przy prostej instalacji 11g z ASM ( bez RAC ) wymagana jest instalcja Grid Infrastructure. Dla tej konfiguracji nie jest poterzbna dodatkowa licencja dla Grid Infrastructure.

To co chemy użyć to Oracle Clusterware + ASM ( teraz nazywany Oracle Cluster File System )

Z dokumnentacji

http://download.oracle.com/docs/cd/E11882_01/license.112/e10594/editions.htm#BABDJGGI 
Wynika że oba komponenty są dla nas bezpłatne:
Oracle Cluster File System–Cloud Edition
A restricted use license to use Oracle Cluster File System–Cloud Edition is included with all editions of the database specifically for storing Oracle database files, Oracle software binaries and homes, Oracle software administrative files, and Oracle software diagnostic files. Customers wishing to store their own data files, or non-Oracle software files including data files, binaries, administrative files, and diagnostic files in Oracle Cluster File System–Cloud Edition, must purchase an Oracle Cluster File System–Cloud Edition license.

Oracle Clusterware
Oracle Clusterware provides cluster membership and high availability services. It provides the cluster membership for features such as Oracle Real Application Clusters and Oracle ASM. It includes the following features:
· Application monitoring, restart, and failover
· Cluster membership services
· Server monitoring and fencing
· Single Client Access Name (SCAN)
· Server Pools
· Grid Naming Services
Oracle Clusterware can be used to protect any application (restarting or failing over the application in the event of a failure), free of charge, if one or more of the following conditions are met:
· The server OS is supported by a valid Oracle Unbreakable Linux support contract.
· The product to be protected is either:
o Any Oracle product (e.g. Oracle Applications, Siebel, Hyperion, Oracle Database EE, Oracle Database XE)
o Any third-party product that directly or indirectly stores data in an Oracle database
· At least one of the servers in the cluster is licensed for Oracle Database (SE or EE)
A cluster is defined to include all the machines that share the same Oracle Cluster Registry (OCR) and Voting Disk.