Mechanical Disk Failures
Prevention of Data Loss
Prevention is always your best option. Backup all the data you can
We differentiate usually between two types of data loss. The first one is human error. You accidentally delete a file and empty the trashcan. Other sources of problems are the disk partitions. For example you make one partition for the windows or other operating system and one or more others for your data. After a while you think it’s time for a fresh install of your operating system and you format the wrong partition.
Don’t think that this only happens to idiots, I’ve talked to savvy system administrators that made this mistake. Under this category we include strange occurrences on disks mostly due to the interaction between today’s complicated operating systems, application and hardware.
Thanks to the File Allocation Table (FAT) erasing a file doesn’t mean it is gone from the drive. You can compare the FAT to an index of files on the drive. Deleting a file usually only means changing some entries in this index. For this example there is no fundamental difference between file systems like NTFS, FAT32 and FAT. Permanent damage can only occur the moment you start writing data to the disk again.
File Allocation Table
In that case some software products examine the disk on cluster level and a new or alternative table is made.
When you need these programs check what file system you are using and if the software is capable of handling it.
Serious Mechanical Dysfunction