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Microsoft MPIOでLUNのパスの数が正しく表示されない

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Category:
fas-systems
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san
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環境

  • Hyper-V です
  • ONTAP 9以降
  • MPIO
  • SAN

問題

一部のLUNでは、ホスト側からのパスが偶数の場合は奇数のパスが表示されます。
 
例:
LUN Properties
| Read(MB)|Wrap(KB)|Written(MB)|Wrap(KB)|IoErrors| #Reads|#Wrap|#Writes|#Wrap|PathFail|
| 15| 0| 7| 0| 0| 2280| 0| 1069| 0| 0|
LoadBalancePolicy Round Robin with Subset
NumberPaths 7
Paths:
|SLUA| ALUA|FP|OP|PW|Pref|Prim|
| 0|Impl-Only| 0| 1| 0| 0| 1|
| 0|Impl-Only| 0| 1| 0| 0| 1|
| 0|Impl-Only| 0| 1| 0| 0| 1|
| 0|Impl-Only| 0| 1| 0| 0| 1|
| 0|Impl-Only| 0| 0| 0| 0| 1|
| 0|Impl-Only| 0| 0| 0| 0| 1|
| 0|Impl-Only| 0| 0| 0| 0| 1|

 

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