Operational considerations
In the previous sections, we discussed what it means to provide or consume storage either in-cluster or off-cluster for the containerized services in Cloud Pak for Data. However, it is also critical to make sure that the storage infrastructure itself is resilient and that operational practices exist to ensure that there is no data loss. Storage failover must also be taken into account from a disaster recovery (DR) standpoint.
In this section, we will take a quick look at some typical practices and tools we can use to ensure that the Cloud Pak for Data services operate with resilience, and that data protection is assured.
Continuous availability with in-cluster storage
A core tenet in Kubernetes is to ensure the continuous availability of applications. This includes load balancing and replicas for compute that can span multiple zones. Such zones could be failure (or availability) zones in public clouds or perhaps independently powered racks of hardware...