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異なる速度で実行されているポートが原因でBrocade Fポートでレイテンシイベントが報告される

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Category:
fabric-interconnect-and-management-switches
Specialty:
brocade
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環境

Brocadeスイッチ

問題

  • 以下に示すように、errdump の下の F ポートで IO_PERF_IMPACT および IO_LATENCY_CLEAR イベントが報告されました。

2022/01/20-20:49:37, [MAPS-1002], 100580, SLOT 1 | FID 128, ERROR, BROCADE, BROCADE_21.E_PORT.192., F-Port 8/0, Condition=ALL_PORTS(DEV_LATENCY_IMPACT==IO_PERF_IMPACT), Current Value:[DEV_LATENCY_IMPACT, IO_PERF_IMPACT, (10 ms Frame Delay) ], RuleName=ALL_PORTS_IO_PERF_IMPACT_UNQUAR, Dashboard Category=Fabric Performance Impact.
2022/01/20-20:50:37, [MAPS-1002], 100581, SLOT 1 | FID 128, ERROR, BROCADE_21, BROCADE_21.E_PORT.192., F-Port 8/0, Condition=ALL_PORTS(DEV_LATENCY_IMPACT==IO_LATENCY_CLEAR), Current Value:[DEV_LATENCY_IMPACT, IO_LATENCY_CLEAR], RuleName=ALL_PORTS_IO_LATENCY_CLEAR, Dashboard Category=Fabric Performance Impact.

  • アプリケーション側で速度低下の問題が発生しています。
  • 同一スイッチ上に複数のNPIV(仮想)デバイスが混在しており、速度は32G、16G、8Gとなっています。
  • そのため、これらのデバイスのいずれか、またはすべてがこのファブリックを介してフレームを送受信する場合、スイッチの速度とパフォーマンスに差が生じるのは避けられません。

switchshow 出力:

switchName:    Brocade
switchType:    180.0

  14   3   14   670e00   id   N32     Online    FC  F-Port  1 N Port + 1 NPIV public (AoQ)
  15   3   15   670f00   id   N32     Online    FC  F-Port  1 N Port + 3 NPIV public (AoQ)
  16   3   16   671000   id   N32     Online    FC  F-Port  1 N Port + 3 NPIV public (AoQ)
  17   3   17   671100   id   N32     Online    FC  F-Port  1 N Port + 2 NPIV public
  18   3   18   671200   id   N32     Online    FC  F-Port  10:00:00:10:9b:e0:20:00
  19   3   19   671300   id   N32     Online    FC  F-Port  1 N Port + 2 NPIV public
  20   3   20   671400   id   N16     Online    FC  F-Port  1 N Port + 2 NPIV public
  21   3   21   671500   id   N16     Online    FC  F-Port  1 N Port + 3 NPIV public
  22   3   22   671600   id   N16     Online    FC  F-Port  1 N Port + 3 NPIV public
  23   3   23   671700   id   N16     Online    FC  F-Port  1 N Port + 3 NPIV public
  24   3   24   671800   id   N32     Online    FC  F-Port  1 N Port + 4 NPIV public (AoQ)
  25   3   25   671900   id   N32     Online    FC  F-Port  1 N Port + 1 NPIV public (AoQ)
  26   3   26   671a00   id   N8     Online    FC  F-Port  1 N Port + 2 NPIV public
  27   3   27   671b00   id   N8     Online    FC  F-Port  1 N Port + 3 NPIV public

 

 

 

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