We migrated a single index to SmartStore about 3 months ago. It appears that since upgrading to v8.0.3 recently, that data retention policies are not applying to local volumes.
I see this in splunkd.log:
05-14-2020 09:54:57.707 -0700 WARN VolumeManager - Not trimming volume=splunk_coldStorage. Using maxVolumeDataSizeMB setting is ignored for volumes containing remote-storage enabled indexes. Please revisit your volume settings.
From the message in the log, it seems that the smartstore config and local volume configs are in conflict. I am not entirely sure how to correct this. Relevant entries from indexes.conf: