Verification Algorithm

What type of verification algorithm is used to check the backup files? It it CRC, MD5, etc.?

I am curious to know how much corruption if any is allowed by the verification proccess.

 

Don't know the algorithm but I would say no corruption is allowed - there is no way of knowing whether a bad bit is in an important area or a meaningless portion of the archive.

 

Zero corruption.

F.

 

Isn't is just based on checksums put into the backup file? While corruption is highly improbable, it's not actually ruled out. And there's no comparison to the original source data except, perhaps, when the checksums are created. The only way to guaranty every bit would be to have a way to compare every bit against a standard -- such as the original data or a second copy -- generally an ungainly and impractical method of data verification.

 

The checksum method could be MD5 or CRC etc. You are right, it is not totally ruled out and the most obvious problem is hardware.

 

Hello writedom,

Thank you for choosing Acronis Disk Backup Software.

We are sorry for the delayed response.

Please have a look at this previous post of mine describing how the validate backup archive tool works.

Thank you.
--
Aleksandr Isakov