Planning the storage for OCR and voting disk

Last published : Jun 11, 2026
Depending on the Oracle RAC version and the type of redundancy you want for the OCR and voting disks, use one of the following storage options:
External redundancy Oracle RAC 11g Release 2 and later versions\:
- Clustered File System
- ASM disk groups created using CVM raw volumes
See OCR and voting disk storage configuration for external redundancy .
Normal redundancy Clustered File System
See OCR and voting disk storage configuration for normal redundancy .
Note: It is recommended that you configure atleast resource dependency for high availability of the OCR and voting disk resources.
Review the following notes before you proceed:
  • Set the disk detach policy setting to (local) with ioship off for OCR and voting disk.
  • Configure OCR and voting disk on non-replicated shared storage when you configure global clusters.
  • If you plan to use FSS, configure OCR and voting disk on SAN storage.