TS/MP System Management Manual (H06.05+, J06.03+)

Managing the Pathsend Environment
HP NonStop TS/MP System Management Manual—541819-007
6-5
ACS Subsystem Core Processes
ACS Subsystem Core Processes
In TS/MP 2.3, the ACS subsystem core processes replace the TS/MP 2.0 LINKMON
process. Together with the PATHMON process, the ACS subsystem controls
communication between Pathsend requester processes and server classes. In terms of
benefits, the ACS Subsystem provides higher Pathsend limits and better link
management over TS/MP 2.0 LINKMON process. The properties of the ACS
Subsystem core processes are described in the subsections that follow.
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ACS Subsystem Core Tasks
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Communication With PATHMON Environment
•
Execution
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Process Names
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Initialization
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Limits
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Extended Memory
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ACS Subsystem Memory Dumps
ACS Subsystem Core Tasks
ACS subsystem core processes enable a multitasking environment that handles the
interface to Pathway servers from requesters other than SCREEN COBOL requesters.
These requesters include the Pathsend processes, such as those created by RSC on
behalf of its workstation clients.
The ACS subsystem gathers statistics for servers. For more information, see Tuning
Your System by Using Statistics.
Communication With the PATHMON Environment
The Process Broker (PB) process in the ACS subsystem communicates with the
PATHMON environment only if it has a link to a server process running in that
environment. When the PB process no longer has any links to any server process in a
PATHMON environment, it terminates its connection to that environment.
Execution
The ACS subsystem supports access to server classes by requester programs written
in TAL, C, C++, COBOL, or Pascal. It supports access by assisting with the execution
of Pathsend procedure calls.
Each processor contains only one set of ACS core processes (Redirector (ROUT),
PB, and configuration subscriber (CS) programs running as $ZLnn, $ZPnn, and
Note. For more information on the PB process, see the TS/MP Release Supplement.