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Operation - IBM DCS9550 1S1 Installation & Service Manual

Storage expansion unit
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Before powering up the enclosure please ensure that all the modules are firmly seated in their
correct bays.
3.1
Power On
Follow the procedure below to Power On the enclosure.
1
Apply AC Mains power to the enclosure. Turn the Power Supply modules to ON.
2
On the Ops Panel, the Audible Alarm beeps once, all LEDs flash for 7 seconds then the Alarm
double beeps.
3
All LEDs on the Ops Panel should be lit (Green) when the enclosure power is activated (and
the disk drive motors should start).
If mains power is lost for any reason, on restoration of power the enclosure will re-start
automatically.
IBM System Storage DCS9550 1S1 Storage Expansion Unit Installation, Service, and User Guide
Caution
Do not operate the subsystem until the ambient temperature is within the
specified operating range. If the drives have been recently installed ensure
they have had time to acclimatize before operating them.
Note
Please refer to Section h2-Heading for details of the Ops Panel LEDs and
related fault conditions.
Note
All LEDs on the Ops Panel should be lit Green at power up to indicate that
the system is functioning correctly. If any show Amber then a problem
exists.

Operation

3
Operation
33

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