Motorola 6806800C08B Manual Do Utilizador

HCD is scoped to one chassis and there are two instances of HCD in a chassis: one active and 
one stand-by. The main tasks of HCD are:

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Performing HPI discovery sequence to realize the physical entities in the chassis

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Publishing HPI events

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Executing HPI APIs

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Supporting those parts of the HPI MIB which are scoped to the chassis which the HCS is 
responsible for

The HPI Adaption Private Library (HPL) is an NCS-internal private library that is used by the 
SPSv and AvSv to communicate its wishes to the HCD. 

The Simple Software Upgrade (SSU) service allows to upgrade software components in the 
Avantellis system. This includes the upgrade of kernel, PCS software, NCS software and 
customer applications. 

The SSU supports the upgrade of software components on system controller blades. The 
images are booted from disk. The upgrade itself is controlled and managed via CLI commands. 

Note that for the upgrade of software components on payload blades, mechanisms like DHCP 
and netboot are used.  

The main component of the SSU is the Simple Software Upgrade Node (SUND). It manages 
the software upgrade on the respective system manager node it resides on. It furthermore 
handles SSU CLI commands which are issued to trigger the software upgrade.   

For details about the SSU service, refer to the Simple Software Upgrade Programmer’s 
Reference.

The System Resource Monitoring Service (SRMSv) service oversees system resource 
utilization by applications and notifies those applications of resource consumption events. 
Monitoring takes place at node-level. 

The SRMSv is implemented as a bundle of System Resource Monitoring Agent (SRMA) and 
System Resource Monitoring Node Director (SRMND). There is no central director. 

For further details about this service refer to the System Resource Monitoring Service 
programmer’s Reference