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为什么 QoS 统计信息卷延迟显示有磁盘而不是云延迟?

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ontap-9
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perf
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适用于

  • ONTAP 9.2 及更高版本。
  • FabricPool

解答

由于 错误 1290868, QoS 统计信息 volume latency show 中的延迟可能记录在错误的列中。相反,它可能会在 Disk 列中报告为磁盘延迟。

示例:vol1 AF-A220 上的延迟几乎为 32 毫秒,并且几乎有 28 个报告为磁盘,但这实际上是由于 FabricPool 冷层或 Cloud 列造成的。

 ::> qos statistics volume latency show -volume vol1 -vserver svm1 Workload ID Latency Network Cluster Data Disk QoS NVRAM Cloud FlexCache SM Sync --------------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- -total- - 370.00us 190.00us 0ms 120.00us 60.00us 0ms 0ms 0ms 0ms 0ms vol1 8036 32.21ms 797.00us 2.00us 3.38ms 27.98ms 0ms 0ms 52.00us 0ms 0ms -total- - 602.00us 191.00us 1.00us 177.00us 233.00us 0ms 0ms 0ms 0ms 0ms vol1 8036 31.06ms 711.00us 5.00us 2.70ms 27.63ms 0ms 0ms 15.00us 0ms 0ms 

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