We have deleted one large share point site collection with space 150 GB through gradual delete job from a large content database size 300 GB.
The job ran for 45 days but released only 100GB free space on the content database. I checked the job status it is completed and there is no references of deleted site in content database sitedeletion table and docstreams table.
Why it is showing only 100 GB free space on SQL content database and how can we reclaim that another 50 GB free space ?