HP ProLiant BL20p G3 Server Blade - Manual (Page 40)

Hardware Options Installation
Smart Array 6i 128-MB Battery-Backed Write Cache
Enabler
The optional Battery-Backed Write Cache Enabler provides the system with a means
for storing and saving data in the event of an unexpected system shutdown.
To access the internal server blade components, refer to “Accessing Internal Server
Blade Components” in Chapter 3, “Server Blade Setup.”
Figure 4-10: Removing the Smart Array 6i Controller
HP ProLiant BL20p Generation 3 Server Blade User Guide 4-11