2-way replication with CephFS

To reduce storage load with the Ceph File System (CephFS) when data resiliency is not a primary concern, you can choose to use 2-way replication (replica-2). It reduces the amount of storage space that is used and decreases the level of fault tolerance.

There are two ways to use replica-2 for CephFS:
  1. Edit the existing default pool to replica-2 and use it with the default CephFS storage class.
  2. Add an additional CephFS data pool with replica-2.