High Availability Subsystem
Table 47: High Availability Subsystem Tasks
Function
Description
Task
Performs device initialization and control functions based on
the CPUs hardware capabilities.
High Availability Task
CPU
hatcpu
Reports the loss of any task on its CPU to hatsystem
sub-function.
Controls the LEDs on the packet processing cards.
Initializes and monitors the dedicated hardware on packet
processing cards. (ASR 5x00 only)
Collects CPU monitoring information periodically and reports
to the master hatcpu sub-function.
Reports the loss of any task on its CPU to the master hatcpu
sub-function.
Performs device initialization and control functions because
of the CPU's hardware capabilities.
Reports the loss of any task on its CPU to hatsystem
sub-function.
Controls the LEDs on the management card. (ASR 5x00 only)
Initializes and monitors the dedicated hardware on the
management card. (ASR 5x00 only)
Controls all the HAT sub-function tasks in the system. It is
initiated on system start-up.
High Availability Task
System Controller
hatsystem
Initializes system components (such as the Gigabit Ethernet
switches and switch fabric).
Monitors system components such as fans for state changes.
Triggers actions for redundancy in the event of fault detection.
The HAT subsystem on the redundant management card
mirrors the HAT subsystem on the active management card.
ASR 5000 System Administration Guide, StarOS Release 21.1
377
StarOS Tasks
High Availability Subsystem
Summary of Contents for ASR 5000
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