How large will the Password Manager SQL database grow?
It takes about 10 log rows for generic user activity like enroll, password reset or unlock account. Maximum size of single log row is about 8K. Real average size of log row is about 0.3-0.5K.
Therefore every user's action like enroll/reset/unlock takes about 3-5K in average. After 10000 users had enrolled the DB size will grow by 30-50 MB.
If reset password rate will be 10 users per day, the DB growth rate will be about 30-50K per day or about 1-1.5 MB per month.