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存储性能是否影响您的卷移动或切换?

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ontap-9
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perf
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适用于

  • ONTAP 9
  • 卷移动缓慢,卡在 98%,或未能及时切换并重试

回答

  • 在卷移动之前和期间,通过监控工具实时 CLI 命令检查 CPU 和磁盘利用率和延迟以及卷延迟。
    • 查看 vol move 何时启动/触发以及何时从 ASUP volume-move-show-table.xml 或 volume move show 命令完成(如果仍在进行中)。
  • Volume Move 默认情况下是一个后台进程,在系统上处于活动状态时将限制用户工作负载
  • 如果用户工作负载过高,可能会出现一些延迟,从而阻止卷移动的进行。
  • 卷大小可以大大延长 vol move 操作时间。
    • 如果当时正在访问数据,即生产中的卷,则 vol move 操作将受到阻碍。
    • 一次安排多个 vol move 操作可能会产生负面影响。
  • 正在重建的故障磁盘可以增加某些节点的吞吐量,即使不在同一聚合上,节点利用率也可能更高。

 

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