TeraByte Unlimited

Given a full backup with validate byte-for-byte, the amount of time taken to create the image and that taken to validate are about the same.

Validating an incremental backup takes dramatically less time than creating it.

I have cases where creating the image takes 20 minutes and the validation takes 20 seconds.

Can the validation be doing what its designed to do in so little time?

When creating the incremental backup, usually the complete source disk must be transversed, which takes a while. However the byte-for-byte verification is only for the data just written to the incremental backup, so much less of the source disk has to be read back for this purpose, and therefore this process is much quicker.