Motorola CPX8000 ユーザーズマニュアル
1-6
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System Architecture
1
❏ Controlling power and resets to each system module through
radial connections
❏ Monitoring and controlling CPU boards, nonhost boards, and
peripherals, including power and fan sleds, board and system
LEDs, and alarms
LEDs, and alarms
Hot Swap Controller
Each of the nonhost slots in the system can be controlled from either HSC.
When an HSC has control over a domain it has control over the nonhost
boards in that domain. Each host processor/bridge pair is controlled as a
single item by the other processor/bridge pair. The bridge and the host
processor are linked together so that both must be present for power to be
applied. A host processor cannot be operated without its HSC.
When an HSC has control over a domain it has control over the nonhost
boards in that domain. Each host processor/bridge pair is controlled as a
single item by the other processor/bridge pair. The bridge and the host
processor are linked together so that both must be present for power to be
applied. A host processor cannot be operated without its HSC.
With the CPX8216 architecture it is important that the system initializes to
a state that allows the host processors and HSCs to be in control of the
system. The default conditions are:
a state that allows the host processors and HSCs to be in control of the
system. The default conditions are:
❏ System processors and bridges are powered up (if present)
❏ System processors and bridges are disconnected from their busses
❏ HSCs are not in control of either domain
❏ Nonhost boards are powered off
❏ Peripheral bays are powered up (if present)
❏ Fans and power supplies are powered on
Note
System components such as fans and power supplies may be
controlled by either HSC but not both. Default control belongs to
Domain A and whichever HSC has control of Domain A has
control of the system functions.
controlled by either HSC but not both. Default control belongs to
Domain A and whichever HSC has control of Domain A has
control of the system functions.
If Domain A is not controlled, nonhost boards are powered-off
and all LED updates to the display panel and power supplies are
suspended. Also, monitoring of alarm inputs from the display
panel and power supplies are inhibited.
and all LED updates to the display panel and power supplies are
suspended. Also, monitoring of alarm inputs from the display
panel and power supplies are inhibited.