There are several options for a PowerFlex appliance deployment.
PowerFlex appliance nodes use PowerFlex to operate storage and tie in workloads. PowerFlex appliance has four components:
- Storage Data Client (SDC), which consumes storage from the PowerFlex appliance.
- Storage Data Server (SDS), which contributes node storage to PowerFlex appliance.
- PowerFlex Metadata Manager (MDM), which manages the storage blocks and tracks data location across the system.
- Storage Data Replication (SDR), which enables native asynchronous replication on PowerFlex storage-only nodes.
PowerFlex enables flexible deployment options by allowing the separation of SDC and SDS components. It addresses data center workload requirements through the following PowerFlex appliance deployment options:
Compute and storage reside within the same server.
Separates compute resources from storage resources, allowing the independent expansion of compute or storage resources.
Consists of PowerFlex compute-only nodes (supporting the SDC) and PowerFlex storage-only nodes (connected to and managed by the SDS).
PowerFlex compute-only nodes host end-user applications.
PowerFlex storage-only nodes contribute storage to the system pool.
Consists of hyperconverged, compute-only, and storage-only nodes. Some nodes contribute both compute resources and storage resources (PowerFlex hyperconverged nodes), some contribute only compute resources (PowerFlex compute-only nodes), and some contribute only storage resources (PowerFlex storage-only nodes).
|PowerFlex compute-only nodes|
Consists of PowerFlex compute-only nodes (supporting the SDC) on Microsoft Windows Standard or Datacenter, CentOS, and Red Hat Enterprise Linux.
PowerFlex compute-only nodes hosts end-user applications.
Note: You must map the ISO manually to the repository. The installation is completed through PowerFlex Manager and there is no support that is provided for this in PowerFlex compute-only node instances. See Dell EMC PowerFlex Appliance Release 1.3 Support Matrix for operating system version information.
|PowerFlex storage-only nodes|
Consists of embedded operating system nodes which contribute storage resources to the virtual environment. The back-end traffic shares the same PowerFlex data networks. No SDC components are installed on this node.
Storage data replication (SDR) is only supported on the LACP bonded NIC port design and SDR component has to be installed on the PowerFlex storage-only node.
SDR is only supported on PowerFlex storage-only nodes with a dual CPU.
Two-layer PowerFlex storage-only nodes shared deployments use the same two PowerFlex data networks for both SDC and SDS communications. This deployment type allows rebooting of VMware cluster nodes without PowerFlex ramifications.
When designing initial deployment or specifying later growth, use PowerFlex hyperconverged nodes if both PowerFlex compute-only nodes and PowerFlex storage-only nodes are needed. You can add PowerFlex compute-only nodes, or PowerFlex storage-only nodes as needed.
- PowerFlex hyperconverged nodes
- Two-layer compute-only nodes
- Storage-only nodes