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Event Reference for File

OceanStor Dorado V3 Series V300R002

This document is applicable to OceanStor Dorado5000 V3, Dorado6000 V3 and Dorado18000 V3. This document describes the basic knowledge about the events of storage system in terms of event definition, event level, impact on the system, possible cause, and handling procedure.
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0xF0CF0005 Abnormal Communication Between Controllers

0xF0CF0005 Abnormal Communication Between Controllers


The communication between controllers in a controller enclosure is abnormal.

Applicable Model

Applicable to all models.



Event Type

Event Level

Automatically Cleared





Impact on the System

The normal operation of the storage system is not affected.

Possible Causes

  • Controller components are faulty.
  • Backplane components are faulty.
  • Heartbeat connections are down.
  • Mirror links are down.
  • Mirror links have too many bit errors.


  1. Check whether any controller that encounters a communication error is being restarted or powered off.

    1. If yes, wait until the controller is restarted or powered on. If the alarm persists=> Step2.
    2. If no=> Step2.

  1. Replace any controller that encounters a communication error described in the alarm details. If the alarm persists=> Step3.
  2. Reinsert the original controller to the slot and replace another controller. If the alarm persists=> Step4.
  3. Collect related information and contact technical support engineers to replace the controller enclosure.
Updated: 2019-07-17

Document ID: EDOC1100076630

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