Plan capacity and cache based on the expected consumption. Consider the requirements for availability and endurance. What to read next Planning Capacity in vSANYou can size the capacity of a vSAN datastore to accommodate the virtual machines (VMs) files in the cluster and to handle failures and maintenance operations. Design Considerations for Flash Caching Devices in vSANPlan the configuration of flash devices for vSAN cache and all-flash capacity to provide high performance and required storage space, and to accommodate future growth. Design Considerations for Flash Capacity Devices in vSANPlan the configuration of flash capacity devices for vSAN all-flash configurations to provide high performance and required storage space, and to accommodate future growth. Design Considerations for Magnetic Disks in vSANPlan the size and number of magnetic disks for capacity in hybrid configurations by following the requirements for storage space and performance. Design Considerations for Storage Controllers in vSANInclude storage controllers on the hosts of a vSAN cluster that best satisfy the requirements for performance and availability. Parent topic: Designing and Sizing a vSAN Cluster