Recovery From Logical Failures
Logical failures are a result of virus attacks, file deletion, format, and firmware corruption and so on. Although this type of data loss isn’t as tedious as logical recovery, it presents its own set of challenges.
Signs Of Logical Data Loss
Logical Data Recovery
Logical data recovery is only possible if the data has not been overwritten. That means no using of the data storage media once it’s realised that the data has been lost
Cloning
What recovery companies do first is to clone the data drive affected, so that the original drive itself is untouched. This prevents over writing over the data.
However this process takes up resources and may take long hours or even days, depending on the TOTAL DRIVE SIZE.
File Restructuring
After the clone is made, the hard disk clusters are scanned and files are restructured. To put it simply, it’s like mixing many different jigsaw puzzle pieces (small pieces I might add) and then later separating them and finishing each jigsaw.
Although it seems simple enough, logical failures take a lot of system resource and time. It also hinges on how much data is overwritten, if any, which affects the overall data recovered.
Sometimes, logical failures are coupled upon physical failures, which make matters worse.
