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使用卷移动对性能的影响

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适用场景

  • ONTAP 9
  • 卷移动

问题描述

  • DiskDataqos statistics 由于卷移动、输出中的延迟和/或延迟中心(D刀片)会增加
  • 此外、可能还会  发现CPU活动/利用率较高。
  • 注意: 由于卷移动期间的数据延迟是在CPU上运行的后台进程、因此这种情况很少见

示例: 以下命令显示了卷移动运行时的高磁盘延迟或数据延迟

nas1::> qos statistics volume latency show -volume data -vserver data_svm3
Workload            ID    Latency    Network    Cluster      Data       Disk        QoS
--------------- ------ ---------- ---------- ---------- ---------- ---------- ---------
-total-              -     0.00us     0.00us    0.00us   000.00us        0ms        0ms
data-wid307        307   300.00ms     0.00us       0ms   150.00ms   150.00ms        0ms
-total-              -     0.00us     0.00us    0.00us   000.00us        0ms        0ms
data-wid307        307   892.00ms     0.00us       0ms    92.00ms   800.00ms        0ms
-total-              -     0.00us     0.00us    0.00us   000.00us        0ms        0ms
data-wid307        307   125.00ms     0.00us       0ms    25.00ms   100.00ms        0ms
-total-              -     0.00us     0.00us    0.00us   000.00us        0ms        0ms
data-wid307        307   332.00ms     0.00us       0ms   300.00ms    32.00ms        0ms

nas1::> volume move show
Vserver   Volume     State    Move Phase Percent-Complete Time-To-Complete
--------- ---------- -------- ---------- ---------------- ----------------
data_svm3   data     alert    replicating    98%  Wed Sep 30 22:58:25 2022

 

 

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