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NFS backup time increased after migration

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179
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Votes:
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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • NFS

Issue

  • After migration to new system, NFS backup time increased copying small files
    • Also during file creation with: ​​​​​​​dd if=/dev/zero of=/nfsdata/oradata/data12 bs=1k count=522100000 
  • A tcpdump collected shows TCP ZeroWindow events
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