Fabric MetroCluster 環境でスロードレインエラーが発生する

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Category:: metrocluster

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環境

ONTAP 9
ファブリックMetroCluster
FOS 8.2.x の場合
Brocadeスイッチ

問題

次のようなアラートは errdump-a にあります。

2021/04/18-03:40:56:730875, [MAPS-1003], 35818839/4116, FID 128, WARNING, Site1-Switch1, port14, F-Port 14, Condition=ALL_PORTS(DEV_LATENCY_IMPACT==IO_PERF_IMPACT), Current Value:[DEV_LATENCY_IMPACT, IO_PERF_IMPACT, (23 ms Frame Delay) ], RuleName=defALL_PORTS_IO_PERF_IMPACT_UNQUAR, Dashboard Category=Fabric Performance Impact., raslogAction.c, line: 170, comp:md, ltime:2021/04/18-03:40:56:728914 2021/04/18-03:40:56, [MAPS-1003], 4116, FID 128, WARNING, Site1-Switch1, port14, F-Port 14, Condition=ALL_PORTS(DEV_LATENCY_IMPACT==IO_PERF_IMPACT), Current Value:[DEV_LATENCY_IMPACT, IO_PERF_IMPACT, (23 ms Frame Delay) ], RuleName=defALL_PORTS_IO_PERF_IMPACT_UNQUAR, Dashboard Category=Fabric Performance Impact. 2021/04/18-03:41:56:758298, [MAPS-1004], 35818840/4117, FID 128, INFO, Site1-Switch1, port14, F-Port 14, Condition=ALL_PORTS(DEV_LATENCY_IMPACT==IO_LATENCY_CLEAR), Current Value:[DEV_LATENCY_IMPACT, IO_LATENCY_CLEAR], RuleName=defALL_PORTS_IO_LATENCY_CLEAR, Dashboard Category=Fabric Performance Impact., raslogAction.c, line: 170, comp:md, ltime:2021/04/18-03:41:56:756983 2021/04/18-03:41:56, [MAPS-1004], 4117, FID 128, INFO, Site1-Switch1, port14, F-Port 14, Condition=ALL_PORTS(DEV_LATENCY_IMPACT==IO_LATENCY_CLEAR), Current Value:[DEV_LATENCY_IMPACT, IO_LATENCY_CLEAR], RuleName=defALL_PORTS_IO_LATENCY_CLEAR, Dashboard Category=Fabric Performance Impact.