2017-02-18 02:42 pm
Entry tags:

database backup sizes

Note to Self:

The size of a SQL Server database backup file does not necessarily reflect the size of the restored database; ie. the hard drive space required to restore the backup.

Example:
329 MB backup file, zipped to 29 MB, required 35 GB to restore.
445 MB backup file, zipped to 55 MB, required only 1 GB to restore.

The difference being, that the latter database had the logs cleared before the backup.