Dell Compellent Series 30 - Manual (Page 16)

10 Storage Center System Setup Guide
Setting Up the Storage Center
Select Hot Spares
A Hot Spare replaces a failed disk. It is held in reserve until needed. A spare disk must be
as large or larger than the largest disk in the disk folder. For redundancy, there must be at
least one Hot Spare for each enclosure.
Figure 4. Select Hot Spares
1 The Startup Wizard automatically selects the appropriate disk(s). Optionally, select one
or more disks to be used as Hot Spares.
Note If drive size or type are mixed in an enclosure, the rule of thumb is one spare per
drive type per enclosure. Check your pre-installation documents for any site-specific
changes.
2 Click Continue. The confirmation dialog appears.