Skip to main content

System back size is very small

Thread needs solution
Beginner
Posts: 1
Comments: 0

1)My system drive, C:, consumes 130GB, but the backup is 30GB.

2)My data drive (D:) consumes 300GB and the backup is 226GB.

 

is something wrong with my system backup (it passes validation) ?

0 Users found this helpful
Legend
Posts: 106
Comments: 26396

Martin, welcome to these public User Forums.

The size of the backup data is very likely to be correct as there are various default exclusions that can add up to a significant size savings along with the use of compression which can achieve an average of 20% size saving too.

You can use a tool such as TreeSize Free to check the sizes of the items being excluded on the backup task > Options > Exclusions page setting.

For your data drive, then again it depends on the mix of data held there, some data / documents can be much more highly compressed whereas other data such as music, videos, images are often already very compressed in their native formats.