Figure 90. Create Disk Folder Pagea. Scroll through the list to verify that the expected disks and expansion enclosures are listed.b. (Optional) From the list of disks, select disks to include in the disk folder. By default, all disks areselected.• To exclude individual disks from the disk folder, clear the corresponding checkboxes.• To include individual disks in the disk folder, click Unselect All and then select the individualdisks to include.• To select all disks, click Select All.NOTE: Dell recommends selecting all available disks to maximize the benefits of DataProgression.c. Click Continue. The Startup Wizard displays a page that allows you to select the disks todesignate as hot spares.2. Review the hot spare disks that the Startup Wizard automatically selected.A hot spare disk is held in reserve until a disk fails. When a disk fails, the hot spare replaces the faileddisk. The hot spare disk must be as large or larger than the largest disk of its type in the disk folder.For redundancy, there must be at least one hot spare for each expansion enclosure. In general, thebest practice is to designate one spare disk for every disk class (10K, 7.5K, and so on).Set up Storage Center Software 111