Hello,
Please let me first apologize if this isn't the correct forum.
I'm having a problem that, for the life of me, I can't seem to resolve. To begin with, I'm using MSSQL Server 2012.
I created a new MSSQL maintenance plan to perform a full nightly (12:00 am) backup for one of our databases. This new plan replaced an old plan that did nothing but perform a full backup. With this new plan I do the following:
Check DB Integrity, Backup DB (full), Shrink DB, Rebuild Index, Clean Up History, Maintenance Cleanup Tasks.
The size of our DB is only 12GB
Now, the new plan took effect last Friday and it functioned properly as it made a full backup of the DB. The problem I'm having is that the differential backups I'm also doing every hour are now 10 times as big as they were before the new plan went into effect.
Just to compare, before midnight Friday (when the new full backup plan took effect), my hourly differential backups were only in the range of 750MBs. My first differential backup after that came to 4+ GBS. So, as you can see, the increase is somewhat
alarming. Being that we have individual maintenance plans for both full and differential backups and being that I did not touch/modify our differential plan, can anyone please tell me why the size of these hourly differential backup plans are so big now? How
is it that creating a new full backup plan affect the size of the differential files? Could this have anything to do with me doing db shrinks and/or Index rebuilds?
I'm at a loss here so I will really appreciate any feedback on this. Thank you very much!
Rob
P.S. Just in case, here's a screenshot of the differences: