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Introduction
Hitachi AMS 2000 Family Storage System Service Guide
Expansion unit
Front panel status LEDs
The front panel of the expansion unit includes Power and Locate status LEDs
that show the status of the unit and identify the unit. The installation
location should provide an unobstructed view of these LEDs.
In addition, each drive slot on the expansion unit has alarm and Active LEDs
that show the status of the drive installed in the slot directly below the
status LEDS. As shown in
, these LEDs are visible
when the front bezel is removed. A close up photo of the drive status LEDs
is shown above.
There are no switches on an expansion unit. Power is turned on and off with
a control signal that is routed from the base unit via the ENC cables that are
connected to the ENC unit in the expansion unit.
Figure 1-28: Front View of an Expansion Unit
Table 1-19: Expansion Unit Front View
Item
Description
Item
Description
1
Orange
2
Power LED
GREEN
Summary of Contents for AMS 2100
Page 8: ...viii Contents Hitachi AMS 2000 Family Storage System Service Guide ...
Page 98: ...3 6 Replaceable parts Hitachi AMS 2000 Family Storage System Service Guide ...
Page 158: ...5 10 Maintenance Hitachi AMS 2000 Family Storage System Service Guide ...
Page 182: ...7 8 Errors Hitachi AMS 2000 Family Storage System Service Guide ...
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