Справочник Пользователя для Motorola CPX8216T
Switching Service to the Passive CPU
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Switching Service to the Passive CPU
The switchover from one CPU to another is initiated by the passive CPU
when there is an indication that there is something wrong with the active
CPU--such as a failed heartbeat protocol. The passive side notifies the
active side that it is about to begin a switchover process. If the active side
agrees to the switchover, then the two sides coordinate the hand-off and no
bus signals, clocks, or devices should be corrupted. If the active system
fails to cooperate with the takeover attempt, then we must assume that bus
signals, clocks, and devices attached to the bus may be corrupted.
when there is an indication that there is something wrong with the active
CPU--such as a failed heartbeat protocol. The passive side notifies the
active side that it is about to begin a switchover process. If the active side
agrees to the switchover, then the two sides coordinate the hand-off and no
bus signals, clocks, or devices should be corrupted. If the active system
fails to cooperate with the takeover attempt, then we must assume that bus
signals, clocks, and devices attached to the bus may be corrupted.
In a more extreme takeover, it is possible for the passive CPU to power-on
reset the active CPU and to take control that way.
reset the active CPU and to take control that way.
Chassis ID for CPX8216T
A unique 5-bit chassis ID can be assigned for each CPX8216T system.
Hex values are on the rotary switches located on the HSC boards. A jumper
can be added to J14 to double the number of unique identifiers. This
feature should be used if more than 15 chassis are deployed in one location.
The HSC boards are shipped with no jumper as the default. For guidelines
on setting the chassis ID on your CPX8216T system, refer to the CPX8000
Series CPX8216 and CPX8216T CompactPCI System Installation and Use
manual.
Hex values are on the rotary switches located on the HSC boards. A jumper
can be added to J14 to double the number of unique identifiers. This
feature should be used if more than 15 chassis are deployed in one location.
The HSC boards are shipped with no jumper as the default. For guidelines
on setting the chassis ID on your CPX8216T system, refer to the CPX8000
Series CPX8216 and CPX8216T CompactPCI System Installation and Use
manual.
Alarms and LEDs
In order to provide a uniform appearance, without depending on individual
board manufacturers, the CPX8216 contains a separate alarm display
panel, which runs across the top of the chassis. In addition to In
Service/Out of Service LED indicators for all sixteen slots, the alarm
display panel contains LEDs for system status (System in
Service/Component out of Service/System out of Service) and for the three
standard Telco levels (Critical/Major/Minor). The three Telco alarms are
also signalled through a dry contact relay.
board manufacturers, the CPX8216 contains a separate alarm display
panel, which runs across the top of the chassis. In addition to In
Service/Out of Service LED indicators for all sixteen slots, the alarm
display panel contains LEDs for system status (System in
Service/Component out of Service/System out of Service) and for the three
standard Telco levels (Critical/Major/Minor). The three Telco alarms are
also signalled through a dry contact relay.