Oracle 11gR2 Basics

The Basics of 11gR2:

• The clusterware is now known as Grid Infrastructure.
• CRS and ASM binaries reside under a single Oracle Home known as GRID Home.
• GRID Home and the Oracle Home must be installed in different locations.
• Oracle Grid Infrastructure cannot be placed under Oracle Base since permissions will be changed to root.
• OCR and Voting File can no longer be placed on RAW or block devices. They need to be placed either in ASM or on Shared NFS Storage.
• Voting file does not need to be backed up using dd command and is not supported anymore.The contents of Voting file are backed into the OCR.