Any job that arrives here at R3 Data Recovery that is diagnosed as having a mechanical fault, needs to be left untouched and not powered up again until a rebuild has been performed on the drive. In almost all cases, having a mechanically failed drive means that a head swap is needed, so we would need to source for a matching donor that has working heads and swap the heads from both drives.
There are two stages of mechanical recoveries:
Stage 1 - This stage is less severe of the two and should only require one donor. This stage is for if the drive has what the engineers at R3 refer to as stiction, this is basically where the read/write heads stick to the platters. Once the heads have stuck to the platters, the disk can be prevented from spinning up and can cause physical damage to the platter and ultimately the data stored on the disk.
Another situation that falls under this stage are if the heads are slightly bent or damaged due to the drive being dropped. In most cases we can recover the data when the drive is at a stage 1 providing of course that we can obtain a matching donor drive, which we can almost all the time.
Stage 2 - This stage is the most severe and is only deemed a stage 2 if there is a significant amount of damage inside the drive. Normally it is if the drive has visible rings or scratches on the platters, or if there are heads missing then the drive would be classed as a stage 2.
If a drive is at this stage then one donor won’t be enough, depending on how damaged the drive is we would have to use at least 2 donors, in some cases up to 5 or 6 but that’s only if the surface area is severely damaged. Normally if the rings aren’t visible on the platters then it would only be a stage 1 as it wouldn’t be anything too major only a few areas that can’t be read, but if there are visible rings then it suggests that the heads have dug into the platters so much that there is just nothing left. This is one of the most difficult circumstances for a mechanical recovery.
To conclude, mechanical recoveries are not easy to do which is why we have trained and highly experienced engineers who are quick at the job but are also extremely careful when handling the inside of your drive. There can be different levels of difficulty in performing mechanical rebuilds, but at R3 Data Recovery we adhere to give every mechanically failed drive the best possible chance of recovery.