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Efficiency background fullscan makes no progress in sharing phase

Last Updated:

Applies to

  • ONTAP 9 without fix for 1513612.
  • Storage Efficiency


  • Background deduplication operation makes no progress after some time where it did make progress initially.
  • The slow phase of the background efficiency operation is saving_sharing, other phases like gathering or sorting work as expected.
  • The last line in /etc/sis logfile associated with the volume the efficiency operation runs against is:

Thu Aug 11 15:48:46 UTC 2022 [Vserver UUID: 2bd2eabc-cb7c-11ab-8122-d039ea4dab7b] /vol/vol_name [sid: 1660211132] Sharing (0 return status)

Note: The /etc/sis log can be investigated by using the SPM interface, when pointing a web browser to URL https://<node-mgmt-ip>/spi/etc/log/.

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