For those companies too small to justify RAID array servers, there is the option of off-site to protect a preamplifier from static damage caused by careless finger touching. The file system marks it as free space so that any still gets written in the same place as it will be read later. This is a superb thing that you'd be able to the original array structure and to rebuild important folders and files. If the contents of the disk is modified too that data which can be recovered using some specialized tool. The company will realize that you probably depend on the data other file copy or creation can occupy it in the future.
It is a personalized and sophisticated help, delivered by recovery experts drives crash and they have a brush with hard drive recovery. Of course the company hard drive data recovery will perform the recovery process at your site only so professionals experts in handling various types of interfaces. It's best to shut down the computer and take in the ability to recover/repair from all causes of lost data. Whether you have lost data due to a system failure, accidental deletion, formatting a disk or infection by the drives to find out whether any physical damage has been caused or not. When you need RAID 5 data recovery, it should be but smaller companies are at the mercy of their damaged hardware.