Hitachi AMS 2100 Hardware Manual page 90

control units.
AMS 2100 /RKES base unit (Rev2). The upper control unit is identical but is
installed in the base unit upside down.
Table 4-14: AMS 2300 Rev2
Item
1
4–18
Figure 4-13 and
Figure 4-13: AMS 2300 Rev2 RKEM LEDs
LED
Alarm
(red)
Lights when the drive has a failure in the control unit.
Hardware components
Hitachi AMS 2100/2300 Storage System Hardware Guide
Table 4-14 shows the lower control unit of an
RKEM LEDs
Function