7.2.3.3 Installing a 3.5-inch dummy module
V CAUTION!
If the removed HDD module is not replaced immediately, always replace 
a dummy module into the unused HDD bay to comply with applicable 
EMC regulations and satisfy cooling requirements.
Figure 26: Installing a 3.5-inch dummy module
Ê Slide the 3.5-inch dummy module into the drive bay until it locks in place (1).
Ê Insert the lock (2).
7.2.3.4 Concluding steps
Ê "Performing a RAID array rebuild" on page 93