Oracle Clusterware Storage Space Requirements

Use this information to determine the minimum number of disks and the minimum disk space requirements based on the redundancy type, for installing Oracle Clusterware files for various Oracle Cluster deployments.

Total Oracle Clusterware Available Storage Space Required by Oracle Cluster Deployment Type

Based on the cluster configuration you want to install, the Oracle Clusterware space requirements vary for different redundancy levels. The following tables list the space requirements for each cluster configuration and redundancy level.

Note:

The DATA disk group stores OCR and voting files, and the RECO disk group stores Oracle Clusterware backup files.

Table 8-1 Minimum Available Space Requirements for Oracle Grid Infrastructure Deployment to Manage Oracle RAC Databases

Redundancy Level	DATA Disk Group	Oracle Fleet Patching and Provisioning	Total Storage
External	1 GB	1 GB	2 GB
Normal	2 GB	2 GB	4 GB
High/Flex/Extended	3 GB	3 GB	6 GB

• Oracle recommends that you use a separate disk group, other than DATA, for Oracle Clusterware backup files.

• The initial sizing for the Oracle Grid Infrastructure deployment to manage Oracle RAC databases is for up to four nodes. You must add additional storage space to the disk group containing Oracle Clusterware backup files for each new node added to the cluster.

• By default, all new Oracle Grid Infrastructure deployments to manage Oracle RAC databases are configured with Oracle Fleet Patching and Provisioning for patching that cluster only. This deployment requires a minimal ACFS file system that is automatically configured.