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对 FlexCache 卷的文件访问需要更长时间

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Category:
ontap-9
Specialty:
nas
Last Updated:
pandar

颜色定义

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适用于

  • ONTAP 9
  • FlexCache

问题

  • FlexCache 卷响应非常缓慢,在 4–5 分钟后尝试访问该卷会导致以下错误。

471 960.071616 10.x.y.20 10.x.y.138 SMB2 5818 12361 206  206 Find Request File: Miscellaneous\file SMB2_FIND_ID_BOTH_DIRECTORY_INFO Pattern: *;Find Request File: Miscellaneous\file SMB2_FIND_ID_BOTH_DIRECTORY_INFO Pattern: * 0.025682

After 53 seconds , (Jan 19th, 15:48:10 IST/  Jan 19th 10:18:10 UTC)

488 1013.330038 10.x.y.138 10.x.y.20 SMB2 12361 6024 157 53.258422000,53.258422000 157 Find Response, Error: STATUS_INTERNAL_ERROR;Find Response, Error: STATUS_INTERNAL_ERROR 3.806124

  • EMS 错误:
Nblade.CifsOperationTimedOut: Detected a timed out CIFS operation. SMB command for this operation: SMB2_COM_CREATE

原因

FlexCache - 启用"write-back"时,FlexGroup 未配置单个组成部分

解决方案

  • 根据最佳实践,使用单个组成卷重新配置 flexgroup,

::> volume create -vserver <SVM_name> -volume <volume_name> -aggregate <aggregate_name> -size <size> -type flexgroup -constituent-count 1

  • 或者,禁用回写功能,

:::> volume flexcache config modify -volume <cache_vol_name> -is-writeback-enabled false

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