Chapter 5. Using The Ac Rack; Starting The Ac Rack; Methods Of Starting The Ac Rack - IBM R30 Operator's Manual

Chapter 5. Using the AC Rack

This chapter contains information about using, starting, and stopping the AC 7015 Model
R00 rack containing a 7015 CPU Enclosure.
For information about using the DC 7015 Model R00 rack, refer to Chapters 6 and 7.

Starting the AC Rack

Powering on the system unit includes:
1. Pressing the Power On button located on the operator panel of the CPU enclosure.
Note: The CPU enclosure is the source of the power control interface (PCI) signal.
Depending on the signal received, power is either set to On or Off for all drawers
controlled by the PCI signal.
2. Doing an IPL.

Methods of Starting the AC Rack

The four methods of starting the CPU Enclosure installed in an AC rack are as follows:
Manually. The power is switched on manually, and the system unit does a normal or a
service IPL. The manual method can be performed on a system unit containing either a
power distribution unit (PDU) or a power distribution bus (PDB).
Remotely. The power is switched on from another location, and the system unit does a
normal IPL. (To use this method, a modem or equivalent device must be attached to the
CPU enclosure with a remote bringup cable.)
Programmed by date and time. On a specific day and time, the power is switched on, and
the system unit does a normal IPL.
Recovery after a power failure. When the power is restored, the power is switched on,
and the system unit does a normal IPL.
Only the manual start is described in this book. See your operating system documentation
for information about other methods of starting the system unit. Also refer to "Chapter 3.
Using System Guard" and "Appendix G. System Power States" for additional start up and
shut down procedures.
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Using the AC Rack