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Table of Contents
Operation
Table 3–2 Ops Panel LED States
LED
2Gb Link
Speed
Hub Mode
3.3
Starting the Drives
Unless otherwise selected during installation, all drives in the enclosure should automatically
start their motors. If this has not occurred one of the following conditions may exist:
• There may be a power problem (an alarm and power fault indication would normally be
• If there is only one Power Supply/Cooling Module present, the drive motors will spin up
3.3.1
Disk Drives LEDs
Each drive carrier incorporates two indicators, an upper (GREEN) and lower (AMBER). In
normal operation the Green LED will be ON and will flicker as the drive operates.The amber
indicator is OFF during normal operation and ON if there is a drive fault present.
3.4
Power Down
To power the Enclosure down,
either
• Switch off the Power Supply/Cooling modules installed in the Enclosure.
or
• Remove AC Mains at the power source
36
Definition
Indicates link speed
Not Used
active).
in a delayed sequence.
IBM System Storage DCS9550 1S1 Storage Expansion Unit Installation, Service, and User Guide
Color
Normal
Status
Green
Off
Green
Off
Fault
Status
On
Off
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