System Startup, Configuration, and Shutdown Reference Manual (32650-90892)

234 AppendixG
UPS and UPS Monitor/iX Software
Configuring a UPS Device
If the UPS battery that powers the SPU becomes exhausted before AC input power
returns, then the system really does lose AC power and crashes. In this case, when AC
power does return and the UPS turns on again, the system reboots just as if it used battery
backup.
To Enable Logging of UPS Activity
The UPS Monitor/iX program posts UPS status and alarm messages to the system log files.
If system logging for the UPS Monitor/iX (which is event number 148) is turned on, you
can review the messages to troubleshoot your system configuration and evaluate system
performance.
As the default, event 148 is ON. To verify that it is or, if necessary, to turn it on, do the
following:
1. At the MPE prompt, start SYSGEN by entering:
:SYSGEN
2. At the sysgen> prompt, start the LOG configurator by entering:
sysgen>LOG
3. To display which system logging events are enabled or disabled, enter:
log>SHOW SLOG
You will see a list of information similar to the example shown on the next page.
4. To turn UPS Monitor/iX logging on (if it is currently listed as OFF), enter:
log>SLOG ON=148
5. To exit the LOG configurator and SYSGEN, enter the EXIT command twice. You will see
the MPE prompt displayed on your screen.
Example G-2. Sample System Log Configuration
log>SHOW SLOG
system log events event # status
----------------- ------- ------
System logging enabled 100 OFF
System up record 101 ON
Job initiation record 102 OFF
Job termination record 103 OFF
Process termination record 104 OFF
NM file close record 105 OFF
System shutdown record 106 ON
Power failure record 107 ON
Spooling log record 108 OFF
I/O error record 111 ON
Physical mount/dismount 112 OFF
Logical mount/dismount 113 OFF
Tape labels record 114 OFF
Console log record 115 ON
Program file event 116 ON
NCS spooling log record 120 ON