PowerScale OneFS 9.5.0.0 CLI Administration Guide

Managing node pools through the command-line interface

You can manage node pools through the command-line interface. You can work with node pools that are automatically provisioned, create and manage manual node pools, and create SSD compatibilities for new nodes.

A node pool, whether automatically provisioned or manually created, must contain a minimum of three compatible nodes. Nodes are provisioned when at least three compatible nodes are added to the cluster. If you add only two compatible nodes to a cluster, you cannot store data on the nodes until you add a third node.

OneFS provides SSD compatibilities, which you can create to enable compatible nodes to become members of an existing node pool. After you create a compatibility, any time a new compatible node is added to the cluster, OneFS provisions the new node to the appropriate node pool.

OneFS supports SSD size and count compatibilities on Generation 5 nodes. OneFS supports only SSD size compatibilities on Generation 6 nodes.

You can create a node pool manually only by selecting a subset of compatible nodes from a single autoprovisioned node pool. You cannot create a manual node pool that takes some nodes from one node pool and some nodes from another.

You must have the ISI_PRIV_SMARTPOOLS or greater administrative privilege to manage node pools.