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During the lifetime of the system, it usually becomes necessary to scale the platform to support larger workloads or increase compute and storage capacity. The architecture is designed to scale at the compute, storage, control plane, and workload levels. The design incorporates network scaling as part the infrastructure scaling. Compute and storage can be scaled independently.
Compute scaling is accomplished by adding additional nodes to the cluster. After physical installation and provisioning of the operating system, the Symcloud compute and storage services can be added from the Symcloud management interface. The nodes become parts of the cluster. The control plane and network are automatically scaled as new nodes are added.
After nodes are added, the new nodes must be added to the appropriate resource pools. When adding heterogenous nodes with specific configurations, it may be advantageous to add those nodes to a specific resource pool. Doing so enables support for granular allocation of those nodes.
For more details of the node provisioning process, see the Symcloud document, Managing Nodes.
Storage scaling is accomplished by adding or upgrading nodes in the ECS or PowerScale storage cluster, using the storage cluster management tools.
This architecture scales network bandwidth as compute or storage nodes are added. When scaling either compute or storage, you must consider any balance-related network bandwidth effects since the bandwidth increases as nodes are added. Substantial changes in expected data transfer volumes should be considered to ensure that the available bandwidth on the compute and storage clusters is aligned.