3.5.2 Configure Shared Storage for the Oracle RAC Database

Before starting Oracle Database Configuration Assistant (DBCA) to configure an Oracle RAC database, you must install Oracle Grid Infrastructure for a cluster, and configure shared storage areas for Oracle RAC files.

1. Login as a user with SYSASM system privileges.
   Storage administration tasks require the SYSASM system privileges, which are granted to members of the OSASM operating system group. This group may not be the same as the OSDBA group, whose members are granted the SYSDBA system privileges.
2. On Windows-based systems, if you plan to use Oracle ASM storage, then before you use DBCA to create a database, you must perform the following steps:
   1. Create logical partitions without primary partitions on the disk drives.
   2. Delete the drive letters for these partitions on all nodes.
      Alternatively, you can stamp these partitions with asmtool.
   3. After you have configured the disks to be used by Oracle ASM, you must create the disk groups that is used by the database.
      You can create disk groups by using SQL*Plus, Oracle Enterprise Manager, or Oracle Automatic Storage Management Configuration Assistant (ASMCA).

See Also:

• Oracle Database Installation Guide for Microsoft Windows for more information about asmtoolg

• Oracle Grid Infrastructure Installation Guide for your platform more information on shared storage configuration requirements

• Oracle Automatic Storage Management Administrator's Guide for more information about creating disk groups