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如何确定 ONTAP 9 中工作负载的读取源?

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适用场景

  • ONTAP 9
  • Cloud Volume ONTAP 9

问题解答

  • workload_volume CM对象具有一个名为的计数器 read_io_type 、可用于标识读取源。
  • 使用命令获取输出:
    • Cluster::> set -privilege diagnostic
    • Cluster::*> statistics start -object workload_volume -counter read_io_type
    • Cluster::*> statistics show
    • Cluster::*> statistics stop
  • 以下是所有不同的读取源:
计数器 问题描述
read_io_type.cache 从系统RAM读取
read_io_type.pmem 从永久性内存读取
read_io_type.ext_cache 从Flash Cache读取
read_io_type.disk 从HDD聚合读取
read_io_type.bamboo_ssd 从SSD聚合读取
read_io_type.hya_hdd 从Flash Pool HDD RAID组读取
read_io_type.hya_cache 从Flash Pool SSD RAID组读取
read_io_type.hya_non_cache 未使用
read_io_type.cloud 从复合聚合读取(FabricPool冷层)
read_io_type.fc_miss 从FlexCache源站读取数据、并像远程fg成员一样进行远程检索 (未命中缓存查找)
read_io_type.cloud_s2c 非FabricPool云读取、例如从SnapMirror还原到Cloud解决方案

 

 

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