4. How to UseUser Guide Page 4-324.1.2.8.3 ExpansionExpansion adds spare disks or new hard drives to an existing array. This is no need to create anew array or stop an array; you may add new disks online while the array is in use. Expansioncan enlarge the capacity and frequency of an array. Although you may still access the arraywhile doing Expansion, its performance is affected considerably. You may check the progress ofExpansion in the main view.Example:Figure 72: Expainsion conceptNoteThe storage capacity of a new hard drive must be no smaller than theother disks in the array.NoteThe ExaSAN RAID Controller allows you to create a maximum of 4arrays with 24 maximum drives in each array. This may limit theflexibility of the Expansion feature.Follow the steps below to select an array to expand.1. Select the array to add additional drives to, and select the number of drives to be added. A“+” sign appears above the drives to be added.2. Check the Confirm box and click Expand Array.NoteIt is only the number of drives that can be chosen, not the specificdrive.