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磁盘瓶颈可能会影响 VMware LUN 的性能和超时

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ontap-9
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perf
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适用场景

  • ONTAP 9
  • VMware ESXi
  • NFS , iSCSI 或 FCP 数据存储库

问题描述

  • NFS 卷, VMware ESXi 集群上的 FCP 或 iSCSI LUN 或 iSCSI LUN 出现重大性能问题,或者 iSCSI LUN 超时
  • VM 的读取或写入速度较慢
  • QoS 统计信息显示磁盘延迟较高
    • 示例: vol1磁盘延迟较高

Workload       ID   Latency   Network   Cluster     Data    Disk   QoS Max   QoS Min    NVRAM  
--------------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------
-total-        -    4.33ms   198.00us    9.00us  1221.00us    2.88ms     0ms     0ms   13.00us
vol1        32140   177.16ms   113.00us   226.00us   108.03ms   68.79ms     0ms     0ms    2.00us

 

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