1–40
Introduction
Hitachi AMS 2000 Family Storage System Service Guide
Disk drive status LEDs
Each disk drive in the high-density expansion unit has an ALM (alarm) LED
on the top edge of the drive that shows the status of the disk drive. This
LED, shown in
, indicates that the drive has failed.
•
•
With the drive cover removed, the drives and any lighted alarm LEDs are
visible, as shown in
.
Figure 1-40: Alarm LED Locations
Battery expansion unit LEDs and controls
The AMS 2500 can connect to one or two AMS 2000 Battery Expansion Units
to extend the life of the data in the cache in case the power to the facility
where the unit is installed fails for an extended period.
Table 1-28: High-density Expansion Unit Top View
Item
Description
Item
Description
1
Power Supply Area
3
Disk Drive Filler (must be in all slots
that do not have disk drives
installed.)
2
Unit (four required)
4
Disk Drive. See Disk Drive Status
LEDs following this table.
Figure 1-39: Disk Drive Alarm LED on High-Density Expansion Unit
Table 1-29: Disk Drive
Alarm
LED
Item
Description
1
Alarm LED (
(RED)
Lights when the drive has a serious error.
Содержание AMS 2100
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Страница 98: ...3 6 Replaceable parts Hitachi AMS 2000 Family Storage System Service Guide ...
Страница 158: ...5 10 Maintenance Hitachi AMS 2000 Family Storage System Service Guide ...
Страница 182: ...7 8 Errors Hitachi AMS 2000 Family Storage System Service Guide ...
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