TS/MP 2.5 Release Supplement

7 SCF Command Reference for the ACS Subsystem
This section includes these topics:
• “Overview” (page 62)
• “Architecture” (page 62)
• “Supported Commands” (page 63)
“List of ACS Subsystem-specific Commands” (page 63)◦
◦ “Syntax Help for SCF Commands” (page 64)
• “ACS Object” (page 64)
• “Starting SCF” (page 65)
• “SCF Command Format” (page 65)
• “ACS Subsystem-specific SCF Commands” (page 65)
“ADD Command” (page 66)◦
◦ “ALTER Command” (page 68)
◦ “CONTROL Command” (page 69)
◦ “DELETE Command” (page 72)
◦ “INFO Command” (page 72)
◦ “NAMES Command” (page 74)
◦ “START Command” (page 75)
◦ “STATS Command” (page 76)
◦ “STATUS Command” (page 80)
◦ “STOP Command” (page 82)
◦ “VERSION Command” (page 83)
Overview
The Subsystem Control Facility (SCF) is a command-line utility that manages the ACS subsystem
by controlling and collecting information about resources configured for the subsystem. Although
the ACS subsystem is located within a single system, you can run SCF commands from any system
in the same expand network.
The ACS subsystem-specific SCF commands control and inquire about the ACS object. This section
describes the SCF commands that are interpreted specifically for ACS. The SCF Reference Manual
provides general information about SCF commands. You must be familiar with the SCF commands
before reading the ACS subsystem-specific information.
Architecture
As shown in Figure 5 (page 63), the SCF interface locates and communicates with the appropriate
product module, in this case, the ACS Subsystem Product Module (ACSPM). The SCF utility provides
an operational interface to an intermediate process, the Subsystem Control Point (SCP), which
communicates with the domain coordinator process, $ZACS. The domain coordinator is run as a
NonStop process pair that is maintained by the Persistent Manager process $ZPM, which provides
the Subsystem Programmatic Interface (SPI) to support the SCF commands.
62 SCF Command Reference for the ACS Subsystem