HP Integrity NonStop H-Series - Manual (Page 87)

AM3270
Subsystems
5–2 098571 Tandem Computers Incorporated
AM3270 If you use DSNM to control the AM3270 subsystem, you will find the following
information helpful. While it covers what you need to know about AM3270 from the
viewpoint of operating DSNM, it is not exhaustive. For more details on the AM3270
subsystem, refer to the SCF Reference Manual for AM3270 and TR3271.
Object Types The AM3270 subsystem contains two object types, LINE and SU, which correspond to
AM3270 lines and subdevices. If you issue a command for this subsystem without
specifying the object type, the object type is determined from the object name. The
hierarchical relationship between lines and subdevices is shown in Figure 5-1.
Figure 5-1. Subsystem Object Hierarchy in the AM3270 Subsystem
SU SU
LINE
001
States Table 5-1 shows how DSNM reports AM3270 subsystem states.
Table 5-1. How DSNM Reports AM3270 Subsystem States
DSNM Object State AM3270 Subsystem State
UP STARTED
PENDING DIAGNOSING
DOWN STOPPED
Note Because of the way that subsystems are implemented, the NetStatus product and the DSNM INQUIRE
command can report objects as either up or down, which the DSNM STATUS command reports as
pending. See Section 2, “DSNM Commands,” for a discussion of the DSNM INQUIRE command.
State information on SU objects, as reported by the DSNM INQUIRE command, can be incorrect because
the AM3270 subsystem does not log state change messages for SU objects.