Unexpected MS SQL DB grow

Unexpected MS SQL DB grow

Hello

Started from one of the last patches (Probably 9108) we have extremely unexpected Database growing.
We have Win installation with MS SQL db

DB size for last two years grown from 3 to 5Gb (before apply patch)
It is grown to 27Gb for last few month
Two biggest table:
notificationTodesc - 24Gb (19955 records), 11Gb on disk while SD backup running
conversationdescription - 1,4Gb (18683 records)

So, we have run out of disk space in few month. Backup process takes about 30Gb while running.

Please advice how to fix/optimize or this is reality?

Dmitry

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