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volume show-footprint 命令显示 Delayed Frees 中使用的空间

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Category:
ontap-9
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core
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适用于

  • ONTAP 9.2 及更高版本

问题描述

  • 删除文件后不会回收空间。
  • Delayed Frees 中存在一个很大的值,即使设置了 -tiering-policy all,在运行 volume show-footprint 命令时该值也可能不会发生变化。
  • Delayed Frees 处存在一个很大的值,如下所示,这是性能层的剩余数据。

Cluster::> volume show-footprint
output ommitted)
    Vserver : SVM1
      Volume  : vol1

      Feature                                          Used    Used%
      --------------------------------           ----------    -----
      Volume Data Footprint                         15.41GB       0%
             Footprint in Performance Tier
                                                     4.65GB      25%
             Footprint in <Cloud Tier name>
                                                    14.14GB      75%
      Volume Guarantee                                   0B       0%
      Flexible Volume Metadata                      858.1MB       0%
      Cross Volume Deduplication                        4KB       0%
      Delayed Frees                                  3.38GB       0%
      Total Footprint                               19.62GB       0%

  • 这种症状也可能会在使用的总聚集尺寸大于总体积尺寸时观察到。
  • 延迟释放已用空间较大,当小于1%时,该值不会下降

 

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