This multi-instance host (which is scheduled for a refresh: T297646 is filling up:
root@db2088:/srv# df -hT /srv Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/tank-data xfs 3.6T 3.3T 307G 92% /srv
Probably re-running an optimize and/or checking if all the tables are compressed would help and might be enough until the host can be replaced.