HP Integrity NonStop H-Series - Manual (Page 103)

TR3271
Subsystems
5–18 098571 Tandem Computers Incorporated
TR3271 If you use DSNM to control the TR3271 subsystem, you will find the following
information helpful. While it covers what you need to know about TR3271 from the
viewpoint of operating DSNM, it is not exhaustive. For more details on the AM3270
subsystem, refer to the Device-Specific Access Methods-AM3270/TR3271.
Object Types The TR3271 subsystem contains two object types, LINE and SU, which correspond to
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 of the object types is shown in Figure 5-7.
Figure 5-7. Subsystem Object Hierarchy in the TR3271 Subsystem
SU SU
LINE
007
States Table 5-15 shows how DSNM reports TR3271 subsystem states.
Table 5-15. How DSNM Reports TR3271 Subsystem States
DSNM Object State TR3271 Subsystem State
UP STARTED
PENDING DIAGNOSING
DOWN STOPPED
Note Table 5-15 is valid for the DSNM STATUS command. 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.
State information on SU objects, as reported by the DSNM INQUIRE command, can be incorrect because
the TR3271 subsystem does not log state change messages for SU objects.