APC SU1400XLT User Manual download pdf (Page 89)

apcevents.c and changing the appropriate defines. Be aware that if you set these values to very large

numbers, apcupsd may make excessive memory demands on the system during the data access and

file truncation operations.

This filename may also be specified at build time by using the --with-log-dir= option of the

configure program.

Configuration Directives used during Power Failures

In general, none of these directives are required. However, if you have a voltage-signalling (dumb) UPS

with a cable that does not support the Low Battery signal, you must set the TIMEOUT directive to force a

shutdown.

BATTERYLEVEL percent of battery

If BATTERYLEVEL is specified, during a power failure, apcupsd will halt the system when the

remaining battery charge falls below the specified percentage. The default is 5 percent. This directive

is ignored for dumb (voltage-signalling) UPSes. To totally disable this counter, set BATTERYLEVEL

-1 in your apcupsd.conf file.

MINUTES battery runtime in minutes

If MINUTES is specified, during a power failure, apcupsd will shutdown the system when the

remaining runtime on batteries as internally calculated by the UPS falls below the time specified. The

default is 3. This directive is ignored for dumb (voltage-signalling) UPSes. It should be noted that

some UPSes report an incorrect value for remaining runtime when the battery is fully charged. This

can be checked by examining the TIMELEFT value as printed in the output of an 'apcaccess

status' command. If the value is zero or otherwise unreasonable, your UPS is probably broken. In

this case, we recommend that you disable this timer by setting MINUTES -1 in your apcupsd.conf

file.

TIMEOUT time in seconds

After a power failure, apcupsd will halt the system when TIMEOUT seconds have expired. A value of

zero disables this timer. Normally for all Smart UPS models and dumb UPSes with cables that

support low battery detection, this should be zero so that the shutdown time will be determined by the

battery level and/or remaining runtime (see above) or in the case of a voltage-signalling UPS, when

the battery is exhausted. This command is required for dumb UPSes that do not provide a battery

exhausted signal (only testing can determine this point). For more information, see the Testing

Apcupsd section of this manual. This timer can also be useful if you want some slave machines to

shutdown before other machines to conserve battery power. It is also useful for testing apcupsd

because you can force a rapid shutdown by setting a small value (e.g. 60) and pulling the plug to the

UPS.

TIMEOUT, BATTERYLEVEL, and MINUTES can be set together without problems. apcupsd will react to the

first case or test that is valid. Normally SmartUPS users will set TIMEOUT to zero so that the system is

shutdown depending on the percentage battery charge remaining (BATTERYLEVEL) or the remaining

battery runtime (MINUTES).

ANNOY time in seconds

Specify the time in seconds between messages requesting logged in users to get off the system

during a power failure. This timer starts only when the UPS is running on batteries. The default is 300

seconds (5 minutes). apcupsd sends the annoy messages by invoking the apccontrol script with the

annoyme argument. The default is to send a wall message on Unix systems and a popup message in

Windows.

The value of ANNOYDELAY must be greater than the value of ANNOY in order to receive annoy

messages (this doesn't make sense, and means that the default values do not generate annoy

messages: KES).

Note that if NOLOGON disable is set, the annoy messages will also be disabled.

ANNOYDELAY time in seconds

Specify delay time in seconds before apcupsd begins requesting logged in users to get off the

system during a power failure. This timer starts only after the UPS is running on batteries. This timer

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APC SU1400XLT User Manual Page 89

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