Check Backup Encryption Sizes

I had a recent project to enable backup encryption on all our servers.  Then question from the storage team came up will this required additional space.  Well by then I had already enabled in all our test servers so I wrote a query that would compare the average size of backups before encryption to after encryption.  Keep in mind we do keep only two weeks of history in our backup tables so this is a fair comparison.  If you don’t have maintenance tasks to clean up your backup history then you should have backup_start_time to the where clauses to get more accurate numbers and setup a maintenance tasks to keep your msdb backup history in check.

Tracy Boggiano
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Tracy Boggiano

Database Administrator at ChannelAdvisor
Tracy has spent over 20 years in IT and has been using SQL Server since 1999 and is currently certified as a MCSE Data Platform. She has worked on SQL Server 6.5 and up including currently SQL 2017 CTP 2.0. She enjoys monitoring, performance tuning, and disaster recovery technologies.

She also tinkered with databases in middle school to keep her baseball card collection organized.

Her passion outside of SQL Server is volunteering with foster children as their advocate in court through http://www.casaforchildren.org.
Tracy Boggiano
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