Increasing logical-drive size

Note: This action is not supported on the integrated RAID controller.

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.


    1. To increase the logical drive size, you need at least one ready drive that is at least as big as the largest drive in the array.

    2. You can schedule the logical-drive migration for a later date and time when you review the configuration changes.

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

  1. In the Logical devices view, click  (array).

  2. Right-click Logical-drive migration Increase logical-drive size. The Configuration wizard opens with the "Create arrays" window.

    Note: This option is not available if the logical drive exceeds 2 terabytes (TB) using any available physical drive.
  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.

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