PowerFlex is an enterprise-class, software-defined block and file storage solution that is deployed, managed, and supported as a single system. Highly flexible and scalable, PowerFlex allows you to have a mixture of two-layer (independent compute and storage), single-layer hyperconverged configurations, storage-only, PowerFlex file services, and other mixed architectures within a single deployment.
With PowerFlex, resources such as storage and compute can be scaled together or separately, non-disruptively, and in small increments. The system can scale from a few nodes to hundreds in a cluster, linearly scaling I/O performance and throughput. In addition, PowerFlex supports a broad set of operating environments that include multiple hypervisors, bare-metal operating systems, container management tools, and PowerFlex file services capabilities (NFS, CIFS, and additional file services offerings).
PowerFlex offers integrated product options. PowerFlex appliance is a scalable system with flexible form factors that comes preconfigured and validated for fast, easy deployment. PowerFlex rack is a rack-scale system that is manufactured, managed, supported, and sustained as one system for single-end-to-end life cycle support. PowerFlex custom node is a validated engineering solution that provides nearly all the flexibility of the PowerFlex software offering.
In PowerFlex, a Storage Pool is a set of physical storage devices in a Protection Domain. A volume is distributed over all devices residing in the same Storage Pool. Storage Pools support medium or fine granularity data layouts and allow enabling or disabling zero padding. The Storage Data Server (SDS) is a software service running on PowerFlex nodes that contribute disks to the storage cluster. In the context of this DVD, SDSs abstract local storage, maintain storage pools, and present volumes to the SDCs running on the Azure Stack HCI cluster nodes. Then, Cluster Shared Volumes are created from the presented PowerFlex volumes using Windows Admin Center.