# Increasing free space

Using this action you can add one, two, or three physical drives to an existing array so that you can create another logical drive in the array.

When you create an array, logical drives are striped across all physical drives in that array. To create more free space in an existing array, define additional physical drives to add to the array. Then, the ServeRAID Manager migrates the logical drives such that the data is spread across the existing and new physical drives.

Note: (Cluster and failover configurations only.) A logical drive will not failover while undergoing logical-drive migration.

1. In the tree, click (array).
2. Right-click Logical-drive migration Increase free space. The Configuration wizard opens with the "Create arrays" window.
3. Add the physical drives to the array. When complete, click Next. The "Configuration summary" window opens.
4. Review and apply your new configuration.
5. After the logical-drive migration is complete, create a new logical drive in the new free space.

## More information

- Example: Increasing free space
- Understanding logical-drive migration

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