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从 AFF 到 FAS 进行 Rsync 迁移后的卷空间差异

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适用于

  • NetApp ONTAP 9.16.1P6 及更高版本
  • AFF(全闪存 FAS)源卷
  • FAS 目标卷(包括 FlexGroup)
  • 使用 rsync 迁移数据的环境
  • 空间效率功能(TSSE、重复数据删除、压缩、数据缩减)

问题

  • 使用 rsync 将数据从 AFF FlexVol 卷迁移到 FAS FlexGroup 卷后,在一个节点上,FAS 系统上的目标卷报告的已用空间比源卷高得多(例如多约 160GB)
  • 运行“du”命令,您将看到相同的客户端使用情况
  • 差异仅在 ONTAP 报告的已用空间中可见。
  • 在 FAS 卷上运行手动存储效率扫描以回收任何可能的空间并不能解决空间报告问题

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