MPE/iX System Utilities Reference Manual (32650-90908)

UPSUTIL for MPE/iX
UPSUTIL Commands
Chapter 32
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• System Abort — The UPS monitor will invoke a particular System Abort in case of low battery charge
condition, to ensure that there is no “partial write” on any disk device when the UPS output power does
turn off.
• Keep Running — The UPS monitor will NOT invoke a System Abort in case of UPS low battery charge
condition. Rather, it will allow the HP e3000 system to keep running in that condition.
Pin The PIN field shows the PIN (Process Identification Number) of the UPS Monitor Process.
UPS Devices Configured This field shows the number of UPS devices that have been configured into the
system’s I/O configuration, as detected by the UPS Monitor Process during its start-up operations.
UPS Devices Monitored This field shows the number of UPS devices that the UPS Monitor Process is
monitoring (or is attempting to monitor).
The value in this field should always be the same as the value of the UPS Devices Configured field. It can be
a different number only if the system was configured with more UPS devices than the UPS Monitor Process is
capable of monitoring. (At present, the limit is 128 UPS devices.) In such an unlikely case, the UPS Monitor
will monitor as many UPS devices as it is capable of, and ignore the rest. In such a case, you could see “200
UPS Devices Configured” and “128 UPS Devices Monitored”, for example.
UPS Devices Allocated This field shows the number of UPS devices that the UPS Monitor Process has
successfully allocated through the MPE/iX File System. (Each UPS device to be monitored must first be
allocated, to give ownership of the UPS device to the UPS Monitor Process.)
This number should always be the same as the UPS Devices Configured and UPS Devices Monitored fields. In
the unlikely event that some UPS device(s) can not be allocated via the File System, this number will be less
than the number of UPS devices configured and to be monitored. If this happens, something is wrong with the
system, and corrective action is needed. One way in which an UPS device can fail to be allocated is a failure of
the system to initialize and download a DTC (Datacommunications and Terminal Controller) to which an
UPS is connected will result in a failure of the File System to “open” (allocate) that UPS device.
UPS Devices Status Display
UPS # The UPS number field of the UPS DEVICES STATUS portion of the status display is simply an
ordinal index number assigned by UPSUTIL to the UPS devices, for convenience in referring to the UPSs. It
has no functional significance.
DEV # The LDEV number field (column) of the status display shows the logical device numbers associated
with the UPSs configured on the system. These LDEV numbers are the “handles” by which I/O devices are
known in the MPE/iX File System. LDEV numbers are assigned to the UPS devices during the I/O
configuration process of system configuration.
Alloc (Allocated Indicator) The allocated field (column) of the status display shows whether or not a UPS
device has been successfully allocated to (i.e. is now “owned” by) the UPS Monitor Process.
In order to control and monitor a UPS device, the device must first be allocated to the UPS Monitor Process.
Allocation is performed in the MPE/iX File System, via the HPFOPEN intrinsic. If allocation succeeds, then
the UPS Monitor Process will attempt to monitor that UPS device, and a value of Yes will be displayed in the
Alloc field. If allocation should fail, then the UPS Monitor Process can not monitor that UPS device. A value of
No will appear in the Alloc column in that case.
Init (Initialized Indicator) The initialized field (column) of the status display shows whether or not a UPS
device has been successfully initialized (i.e., “brought online”) by the UPS Monitor Process.
A value of Yes in this column indicates that the UPS device has been successfully initialized by the UPS
Monitor Process, and is in a “ready to be monitored” condition.