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Snapshot Reserve continues to fill after setting Snapshot Policy to None

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Category:
ontap-9
Specialty:
core
Last Updated:

Applies to

ONTAP 9

Issue

  • After changing the Snapshot Policy of a volume to "None", the snapshot reserve continues to fill with data.
  • Existing snapshots remain active and continue to capture modified or deleted data.
  • This behavior leads to the risk of the volume filling up despite the policy being set to "None".

    Example:

    cluster1::*> volume show -volume testvol -fields snapshot-policy
    vserver volume  snapshot-policy
    ------- ------- ---------------
    svm1    testvol none

    cluster1::*> snapshot Show testvol
                                                                     ---Blocks---
    Vserver  Volume   Snapshot                                  Size Total% Used%
    -------- -------- ------------------------------------- -------- ------ -----
    svm1     testvol
                      5min.2025-06-19_2155                    4.57MB     0%    1%
                      5min.2025-06-19_2200                   30.39MB     1%    3%
                      5min.2025-06-19_2205                     276KB     0%    0%
                      snap.2025-06-19_220610                 402.8MB     7%   32%
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