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Administrator Guide 15

OceanStor 5300 V3, 5500 V3, 5600 V3, 5800 V3, and 6800 V3 Storage System V300R003

Routine maintenance activities are the most common activities for the storage device, including powering on or off the storage device, managing users, modifying basic parameters of the storage device, and managing hardware components. This document applies to the system administrators who are responsible for carrying out routine maintenance activities, monitoring the storage device, and rectifying common device faults.
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Checking Controller Enclosure BBUs

Checking Controller Enclosure BBUs

Controller enclosure backup battery units (BBUs) provide power failure protection for controller enclosures, allowing data to be stored in the event of a power failure. You can learn about the health and running status of a BBU by checking its status information on the DeviceManager.

Impact on the System

BBUs of controller enclosures provide power supply to controller enclosures upon power failure. In this way, data can be saved even if controller enclosures encounter power failure. If the BBUs also become faulty, cache data cannot be saved to disks upon power failure, resulting in data loss.

Reference Standard

If controller enclosure BBUs are working properly, the following items are true on the DeviceManager:
  • All of the BBUs are in the Normal health status and Online running status.
  • No BBU alarm appears on the Current Alarms tab page.


  1. Log in to DeviceManager.
  2. Choose System.
  3. Click the desired BBU in the view.

    The detailed information about the BBU is displayed.

    If a storage system has multiple cabinets, select a cabinet that you want to view.

  4. View the BBU information in the group box that is displayed.

    Table 9-20 describes associated status parameters.
    Table 9-20  BBU status parameters and their meanings



    Health Status

    Health status of a BBU. The value can be:
    • Normal: The functionality and operating performance of the BBU are normal.
    • Faulty: The BBU is working improperly.
    • Insufficient power: The power level of the BBU is low though its operating performance is normal.

    Running Status

    Running status of a BBU. The value can be Online, Charging, or Discharging.

Follow-up Procedure

If a BBU alarm appears on the Current Alarms tab page, select the alarm and diagnose the problem according to its details and repair suggestions.

Updated: 2019-04-17

Document ID: EDOC1000084191

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