Agent Shutdown timer

When a UPS is connected to an agent it has a specific behavior which differs from standard UPS behavior during utility failure.

Autonomy example when a UPS is connected to an agent :

• As soon as Utility failure is detected, the agent sends the traps 11, 17 and 29
• 30 min later (this value is corresponding to agent shutdown timer), and if no other event appears, the agent sends traps 31 which initiates the shutdown of the machines protected by the UM-Clients.
• 120 sec later (this value is corresponding to shutdown duration), UPS stops output supply to preserve it's battery.

Time diagram hereafter illustrates this behavior :

Autonomy example with « Low Battery event » :

• As soon as Utility failure is detected, the agent sends the traps 11, 17 and 29
• As soon as the agent detects « Low battery event » (battery capacity is below 10 %), the agent sends traps 9 which initiates the shutdown of the machines protected by the UM-Clients.
• 120 sec later (this value is corresponding to shutdown duration), UPS stops output supply to preserve it's battery.

Time diagram hereafter illustrates this behavior :

UPS Shutdown sequence depends from following objects default values :

• upsConfigShutdownTimer (1.3.6.1.4.1.705.1.4.10.0 =30 min),
• upsConfigSysShutDuration (1.3.6.1.4.1.705.1.4.11.0 = 120 sec.),
• upsConfigLowBatteryLevel (1.3.6.1.4.1.705.1.4.8.0 = 10%)

These objects are in the MGE UPS SYSTEMS MIB and the proposed default values have been choosen for optimal protection of computer systems. In some particular cases you can customise these values (for example when you have a battery extension).

Remark :

The object upsConfigShutdownTimer can easily be customized from UM-Console+ graphical interface (from Solution-Pac / WAN)