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The snapshot size is larger than expected?

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Category:
ontap-9
Specialty:
CORE
Last Updated:

Applies to

  • ONTAP 9
  • Volume
  • Snapshot Management

Issue

Why is the snapshot using 1.12TB ?

  • Volume is 5.6TB.
  • User space is 3.5TB.
  • Snapshot Overflow is 1.12TB
  • Space reservation for snapshot is 5%
  • snapshot policy :
    • 1 Weekly
    • 7 Daily
    • 24 2Hrs
  • No old/undeleted snapshot

::> volume show-space

Volume : volume 1

      Feature                                           Used      Used%
      --------------------------------      ----------------      -----
      User Data                                       3.50TB        69%
      Snapshot Reserve                                 261GB         5%
      Snapshot Spill                                  1.12TB        22%

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