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RHEL で multipath が "tur checker reports path is down" と報告する理由

Solution Verified - Updated -

Issue

  • multipath -v2 は次のメッセージを報告します。

    sdb: checker msg is "tur checker reports path is down" 
    sdk: checker msg is "tur checker reports path is down" 
    sdc: checker msg is "tur checker reports path is down"
    
  • パスが障害ありとしてマークされ、パスチェッカーがパスをダウンとして報告する理由を判断するにはどうすればよいですか?

  • ストレージを割り当てようとすると multipath でエラーが発生します。

Environment

  • Red Hat Enterprise Linux (RHEL) 4、5、6、7、8、9
    • device-mapper-multipath

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