External approach

IBM Storage Fusion Data Foundation exposes the IBM Storage Ceph services running outside of the OpenShift Container Platform cluster as storage classes.

The external approach is best used in the following use cases:

• Storage requirements are significant (600+ storage devices).
• Multiple OpenShift Container Platform clusters need to consume storage services from a common external cluster.
• Another team, Site Reliability Engineering (SRE), storage, and so on, need to manage the external cluster providing storage services. Possibly a preexisting one.