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RHEL でマルチパスが "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 "faulty the path checker reports the path is down" とマークされる理由を確認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マルチパスでエラーが発生します。

Environment

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

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