# Increasing logical-drive space

Using this action you can add one, two, or three physical drives to an existing array so you can expand the size of the logical drives in the array. When increasing logical drive space, the ServeRAID Manager migrates the logical drives such that the logical drives gain additional space, much like adding paper to a notebook.

When you create an array, logical drives are striped across all of the physical drives in that array. To increase the size of the logical drives 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 logical-drive 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 additional partitions to use the newly added logical-drive space. If the server is a Microsoft® Windows® system, you can extend the size of a pre-existing partition with the newly acquired logical-drive space.

## More information

- Example: Increasing logical drive space
- Extending a partition on a logical drive

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