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QNAP

QNE Network 1.0.x

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Uninterruptible Power Supply (UPS)

The network device supports connecting to uninterruptible power supply (UPS) devices to protect the network device from abnormal system shutdowns caused by power disruptions.

You can check the UPS information in Control Panel > System > UPS.

You can view the AC power status, battery capacity, estimated protection time, UPS manufacturer, and model on the UPS Information page.

Configuring UPS Settings

  1. Go to Control Panel > System > External Device > UPS.
  2. Select one of the following options and configure the settings.

    Mode

    User Actions

    USB connection

    1. Connect the UPS to the device using a USB cable.

    2. Select USB connection.

    3. Choose one of the following options.

      • Power off the server after the power fails for a specified time period

      • Allow the device to enter auto-protection mode after the power fails for a specified time period

      Note:

      In auto-protection mode, the device stops all services and unmounts all volumes to protect your data. After the power is restored, the device restarts and resumes normal operation.

    4. (Optional) Select Enable network UPS master and then specify the IP addresses to which QNE sends notifications in the event of power failure.

      Note:

      This option can only be selected when the UPS is connected to the device via USB.

    SNMP connection

    1. Connect the UPS to the same network as the device.

    2. Select SNMP connection.

    3. Specify the IP address of the UPS.

    4. Choose one of the following options.

      • Power off the server after the power fails for a specified time period

      • Allow the device to enter auto-protection mode after the power fails for a specified time period

    Network standby UPS

    1. Connect the UPS to the same network as the device.

    2. Select Network UPS slave.

    3. Specify the IP address of the UPS server.

    4. Choose one of the following options.

      • Power off the server after the power fails for a specified time period

      • Allow the device to enter auto-protection mode after the power fails for a specified time period
  3. Click Apply.

Device Behavior During a Power Outage

The following table describes the possible scenarios during a power outage and the corresponding device behavior.

Phase

Scenario

Network Device

Phase 1: From the start of the power outage until the end of the specified waiting time

The power outage occurs.

The device detects the remaining UPS power.

The UPS power is greater than 15%.

Depending on your UPS settings, the network device powers off or switches to auto-protection mode after the specified waiting time elapses.

The UPS power is less than 15%.

Depending on your UPS settings, the device powers off or switches to auto-protection mode after the specified waiting time elapses.

The power is restored.

The device remains functional.

Phase 2: From the end of the specified waiting time until the UPS runs out of power

The power is not restored, and the device is in auto-protection mode.

The device stops all running services.

The power is not restored, and the device is powered off.

The device remains powered off.

The power is restored, and the device is in auto-protection mode.

The device remains powered off.

The power is restored, and the device is powered off.

The device remains powered off.

Phase 3: From the moment the UPS runs out power until the power is restored

The power is not restored, and the device is in auto-protection mode.

The device powers off.

The power is not restored, and the device is powered off.

The device remains powered off.

The power is restored.

The device applies the specified power recovery settings.