[Oracle RAC 12.1 Installation on Oracle Linux 6.7 (ISCSI + ASM)]: Creating directory structure and assigning necessary permissions

Server:

rac1, rac2

Must be performed on each cluster node:

The rather inconvenient directory layout is due to the fact that different directories require different sets of permissions. + when making changes, Oracle installation may complain.

# mkdir -p /u01/app/oraInventory
# chown -R oracle12:oinstall /u01/app/oraInventory
# chmod -R 775 /u01/app/oraInventory

# mkdir -p /u01/app/grid/12.1
# chown -R oracle12:oinstall /u01/app/grid/12.1
# chmod -R 775 /u01/app/grid/12.1

# mkdir -p /u01/app/oracle/product/rac/12.1
# chown -R oracle12:oinstall /u01/app/oracle
# chmod -R 775 /u01/app/oracle