Home > Storage > PowerScale (Isilon) > Product Documentation > Storage (general) > PowerScale All-Flash F210 and F710 > Overview
Existing clusters in the field may add the F210 and F710 nodes for additional capacity and performance. A minimum of 3 nodes is required to create a new node pool for the F210 and F710.
However, for clusters that have F200s, they have the option to increase the same node pool by adding a single F210. In this case, the only supported drive is the short formatted 1.92 TB option, resulting in a 960 GB capacity per drive. While the F210 is node pool compatible with the F200, a performance degradation is experienced where the F210 is not at full performance. When a F210 is added to F200 node pool, the WebUI explains the soft restriction in the following image.
A similar soft restriction message is displayed in the CLI, as displayed in the following image.
Clusters that have F600s are not node pool compatible with the F710, requiring a separate node pool for the F710 with a minimum of 3 nodes.