ATM Configuration and Management Manual

Overview of the ATM Subsystem
ATM Configuration and Management Manual—522307-003
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ATM Manager Process (AMP)
•
Accepts all Distributed Systems Management (DSM) requests from the SCF
product module through the Subsystem Control Point (SCP)
•
Starts each manager process (AMPs) in each processor and maintains each
process persistently across failures
•
Handles the assignment of ADAPTERs to specific AMP processes
ATM Manager Process (AMP)
The AMP is a set of control processes in the ATM subsystem. The PROCESS object
represents an AMP residing in a particular processor.
The ASM process creates a manager in each processor defined in the ACCESSLIST
attribute at system initialization and when an adapter is added. If a manager process
fails, ASM restarts it. Each AMP performs the following functions:
•
Initializes the QIO interface to the ATM3SA
•
Provides configuration information to the ATM3SA
•
Creates data structures representing all of the adapters, lines, and ATMSAPs
•
Handles error reporting from the DIHs
Figure 2-5. ATM Subsystem Manager (ASM) Process
CPU 0
CPU 1
Drivers and DIH
ATM Drivers and DIH
ServerNet SAN
Adapter Adapter
ServerNet SAN
Adapter Adapter
SCF
VST205.vsd
AMP
Backup
ASM
Primary
ASM
AMP
NSK
Persistence
Manager
SCP