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Event Reference

OceanStor Dorado V3 Series V300R001

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. The document that you browse online matches the latest C version of the product. Click Download to download documents of other C versions.
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0xF00C90015 Controller Write Cache Is Disabled

0xF00C90015 Controller Write Cache Is Disabled

Description

Write cache of a controller is disabled.

Applicable Model

Applicable to all models.

Attribute

ID

Event Level

Automatically Cleared

0xF00C90015

Major

Yes

Impact on the System

System write performance may be compromised.

Possible Causes

  • Power modules are faulty.
  • BBU modules are faulty.
  • BBU modules have insufficient power.
  • Fan modules are faulty.
  • Controllers are faulty.
  • The temperature is too high.
  • Disks or disk enclosures are faulty.

Procedure

  1. Check whether alarms are generated indicating power module faults.

    1. If yes, replace the faulty power modules. If the alarm Controller Write Cache Is Disabled persists=> Step2.
    2. If no=> Step2.

  2. Check whether alarms are generated indicating BBU module faults.

    1. If yes, replace the faulty BBU modules. If the alarm Controller Write Cache Is Disabled persists=> Step3.
    2. If no=> Step3.

  3. Check whether events are generated indicating BBU module insufficient power.

    1. If yes, wait until the BBU modules are fully charged.
    2. if no=> Step4.

  4. Check whether alarms are generated indicating fan module faults.

    1. If yes, replace the faulty fan modules. If the alarm Controller Write Cache Is Disabled persists=> Step5.
    2. If no=> Step5.

  5. Check whether alarms are generated indicating controller faults.

    1. If yes, replace the faulty controllers. If the alarm Controller Write Cache Is Disabled persists=> Step6.
    2. If no=> Step6.

  6. Check whether the temperature is higher than the system limit.

    1. If yes, lower the temperature of existing air conditioners or add more air conditioners. If the alarm Controller Write Cache Is Disabled persists=> Step7.
    2. If no=> Step7.

  7. Check whether alarms are generated indicating disk or disk enclosure faults.

    1. If yes, replace the faulty disks or disk enclosures. If the alarm Controller Write Cache Is Disabled persists=> Step8.
    2. If no=> Step8.

  8. Collect all related information and contact technical support engineers.
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Updated: 2018-10-19

Document ID: EDOC1000141827

Views: 85286

Downloads: 169

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