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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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0x100F000B0021 External LUN Is Changed To Command Device

0x100F000B0021 External LUN Is Changed To Command Device

Description

An external LUN is changed to a command device.

Applicable Model

Applicable to all models.

Attribute

ID

Event Type

Event Level

Automatically Cleared

0x100F000B0021

Run Log

Major

No

Impact on the System

The LUN cannot be connected if the link is reconnected.

Possible Causes

The external LUN of the corresponding heterogeneous storage array is changed to a command device.

Procedure

  1. Check why the external LUN is changed to a command device.

    1. If the customer needs to use this external LUN as the external device=> Step2.
    2. If the external LUN is changed to a command device by mistake, change this LUN back to a normal LUN=> Step4.

  2. Check whether the LUN is being used.

    1. If yes, stop delivering I/Os to this LUN and delete the eDevLUN=> Step3.
    2. If no=> Step3.

  3. Unmap this LUN from the heterogeneous storage array and scan for LUNs again=> Step4.
  4. Clear the alarm manually.
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Updated: 2019-07-17

Document ID: EDOC1100076630

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