System Startup, Configuration, and Shutdown Reference Manual (32650-90907)

Appendix G
UPS and UPS Monitor/iX Software
Advanced UPS Monitor/IX Features
215
G UPS and UPS Monitor/iX Software
A new method of power failure protection was implemented as of MPE/iX Release 5.0. Instead of battery
backup units, they have one or more PowerTrust UPS (Uninterruptible Power Supply) devices.
Like the battery backup method of power failure, the UPS devices protect the HP e3000 system against the
loss of work in progress in cases of utility AC power failures of up to fifteen minutes in duration.
Furthermore, they have been designed to appear similar to the battery backup method which minimizes their
effect on system operation and management procedures.
UPS devices offer two principal advantages over the battery backup method:
• In a minimal UPS-based system, the degree of power failure protection is equivalent to that provided by
the battery backup unit. You can, however, add more UPS devices to the system and provide reserve
power to selected peripherals. Depending upon how much of the system is provided with UPS power, it
can run a partial or full workload non-stop through limited periods of AC power failure.
• The UPS contains a serial I/O communications interface that, in conjunction with UPS Monitor/iX
software, notifies the system operator of any problems. Like the battery backup hardware that the UPS
devices replace, a system-wide power failure recovery message is broadcast to all active user terminals
and to the console upon the return of power following a failure. In addition to console messages, the UPS
Monitor/iX software also posts a variety of status and warning messages to the system log files which you
can review and analyze to evaluate system performance.
Advanced UPS Monitor/IX Features
For information on additional features and capabilities of UPS Monitor/iX, refer to the “UPSUTIL for
MPE/iX” chapter of the System Utilities Manual.