ONTAP “sis.changelog.full” Warning – SIS Changelog Metafile Full
Applies to
- AFF / FAS / ASA
- ONTAP 9
- All ONTAP systems using volume efficiency (deduplication)
Issue
The following warning appears in EMS logs and/or AutoSupport:
ERROR sis.changelog.full: SIS changelogging metafile for volume <volume>@vserver:<vserver-uuid> is full.
Example:
11/5/2025 05:34:04 Node-XX ERROR sis.changelog.full: SIS changelogging metafile for volume volumename@vserver:71cbeda4-7060-11e6-b8a3-000e1ec88cb0 is full
Additionally, running volume efficiency show displays Changelog Usage: 102%.