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即使分层扫描程序看起来像在运行、也无法将冷数据移至容量层

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适用场景

  • ONTAP 9
  • FabricPool
  • 受影响的分层策略:"自动"、"仅限Snapshot "、"全部"

问题描述

  • 默认情况下、分层扫描程序每24小时运行一次。
  • 分层扫描程序每天都会运行并完成、但并不会对所有冷数据进行分层。
  • 重新启动节点后、分层扫描程序将再次运行并发生数据移动、但第二天可能会遇到现象。
  • 对于正常(不重新启动节点)扫描程序、扫描程序会运行数秒、而在重新启动后、扫描程序需要数小时才能完成、并且会发生数据移动。

示例:

EMS日志以显示正常(无节点重新启动)的扫描程序运行数秒、然后中止。

Feb 12 13:19:59 JST [node name: scan_ca_tiering_wkr: wafl.scan.start:debug]: Starting composite aggregate tiering on volume volume-name@vserver:xxxx.
Feb 12 13:20:57 JST [node name: wafl_scan_exempt: wafl.scan.done:notice]: Completed composite aggregate tiering on volume volume-name@vserver:xxxx.

要在重新启动后显示的EMS日志扫描程序需要数小时才能完成。

Feb 10 12:52:05 JST [node name: scan_ca_tiering_wkr: wafl.scan.start:debug]: Starting composite aggregate tiering on volume volume-name@vserver:xxxx.
Feb 10 14:03:29 JST [node name: wafl_scan_exempt: wafl.scan.done:notice]: Completed composite aggregate tiering on volume volume-name@vserver:xxxx.

 

 

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