HP StorageWorks 20 Modular Smart Array - Manual (Page 15)

Identifying the Enclosure Components
Controller Module
Figure 2-4: Controller module
Item Description
1 Upper cache battery
2 Finger hook
3 Bicolor status LED (green or amber)
4 VHDCI connector (for connecting to a sixth-generation
Smart Array controller or an MSA1500 cs enclosure)
5 Service port (for HP service technicians only)
6 Release lever
7 Controller cache (lower cache battery just visible)
2-4 HP StorageWorks Modular Smart Array 20 User Guide