Storage Node consolidation

Storage Node consolidation is the process of reducing the Storage Node count for a site or deployment while increasing storage capacity.

Storage Node consolidation involves expanding the StorageGRID Webscale system to add new, larger capacity Storage Nodes and then decommissioning the older smaller capacity Storage Nodes. The decommissioning procedure results in the migration of objects to the new Storage Nodes.

For example, you might add two new larger capacity Storage Nodes to replace three older Storage Nodes. You would first use the expansion procedure to add the two new larger Storage Nodes, and then the decommissioning procedure to remove the three older smaller capacity Storage Nodes.

If a Storage Node is being decommissioned as part of a consolidation operation, you must add the new Storage Nodes to the StorageGRID Webscale system before decommissioning the existing Storage Node.

By adding new capacity prior to removing existing Storage Nodes, you ensure a more balanced distribution of data across the StorageGRID Webscale system. You also reduce the possibility that an existing Storage Node might be pushed beyond the storage watermark level. For more information about watermarks, see the Administrator Guide.