Home > Storage > PowerFlex > White Papers > Elastic Cloud on Kubernetes on Dell PowerFlex 4.0 > Logical architecture
PowerFlex deployment is performed in a two-layer architecture with the help of a PowerFlex Manger that automates the whole process. The compute-only (CO) nodes have Red Hat Enterprise Linux 8.7 operating system that is installed on them. The Upstream Kubernetes 1.26 is installed with one master and two worker nodes. After this, the CSI driver 2.6.0 is installed to expose the persistent volumes to the Kubernetes pods from the underlying PowerFlex storage resource.
The PowerFlex SO cluster provides the storage. Each of the SO nodes are populated with eight 1.92 TB SAS SSD drives. A single PowerFlex protection domain is created that consists of four SDSs that has 32 physical storage devices within the protection domain. For more information about specification of all the nodes, see Hardware and software details.
For this whitepaper, PowerFlex deployment is followed by an ECK deployment that has three master and five data nodes to ensure data retention, redundancy, and optimal performance.
Figure 7. Elastic stack on Kubernetes logical architecture