RAC on NFS / ASM on NFS

Why?

I need to create a RAC cluster at a client site where they only have a NFS file server device.

To ASM or not ASM?

Options

direct NFS

Option 2 : ASM on NFS

You can make use of ASM with NFS by creating shared files on NFS that will act as Raw devices to ASM. The basic steps are:
  • Create and mount NFS share
  • Create blank files using dd command
  • Use ASMCA to create a new diskgroup, set discovery string to the path where above files live
Details are available in this Oracle Base article : href="https://oracle-base.com/articles/linux/using-nfs-with-asm">Using NFS with ASM and this Oracle Documentation : Creating Files on a NAS Device for Use with Oracle ASM

References

12cR1 Creating Files on a NAS Device for Use with Oracle ASM