The fault · a drive you can hear
The actual data is normally unscathed when the noise starts. The loss happens after that. If a head has no idea where it is, then it is going to park, shoot off across the top of the drive, miss, park again, and do this over and over again as long as there is still power flowing into the socket. Every time it tries again, the heads have another chance to touch the platter. When you pull the plug, regardless of where your drive sits in Hull, the count stops.
An engineer will take the details
0800 6890668
| The symptoms | What the fault is | What to try |
|---|---|---|
| There is a tick once per second, and it does not stop. | The arm relies upon the factory-created servo marks for guidance. Since it can't see these marks, it goes back to parking on the ramp and makes another attempt at approaching the platter. | Shut off the power now. |
| A very high-pitched beep usually coming from a 2.5" pocket drive. | Nothing moves. The spindle bearings have frozen solid or the heads have become stuck to the surface. | No tapping. No shaking. |
| Harsh grinding or rasping sounds. | A head is making contact with the platter. This is when the damage occurs. | Files are being lost with every passing second while it runs. |
| Short chirps occur with each startup of the device. | Calibration fails, typically after some form of impact (knock). | Switch it off. Leave it alone. |
| Clicks continue, then nothing happens. | It simply gives up and resets itself and then attempts it all again. | Remove the power source and break the loop cycle |
| Only clicks on some of the files. | Either one head is malfunctioning or one band of surface on the hard drive is damaged. | Cease the copy process; have an image created |
Every piece of gear that shows up receives a case number on the very same day it arrives. An engineer examines it and determines what is really wrong with it and there is no charge for this. We give you straight language about which files we will be able to copy from the disk and which ones we won't be able to. Then we provide you with a single price quote, in writing, based upon these findings. We don't begin working on anything until you agree to the quoted price.
Even before receiving power, the internal components of a hard drive and both sides of the platters undergo inspection by qualified personnel. Even if it is necessary to operate a defective disk drive in order to retrieve data from it, the disk will only be operated under supervision and will only be allowed to run continuously for short periods of time.
The failed head assembly is removed and replaced by a matched donor unit. The locked spindle is freed. Any heads that remain resting on the platter surface are gently lifted into their proper position without causing damage to the surface. Once these steps have been completed, the disk will be requested to provide a complete copy of its contents prior to performing any additional operations.
Using a low-level imager (hardware-based) that skips over sections where reading fails and re-visits those same sections once the remainder of the data has been successfully retrieved, we create a new copy containing all sectors that the original disk drive can still give up. All further processing will occur on the created copy; your original hard drive remains unaltered.
You will not be charged while you think about this. First, you receive a list of everything that was recovered from the drive. Once you have seen the list and given us the go-ahead, the bill comes next. Files are returned to you on media purchased specifically for this job and we cover the return postage as well. Your job is kept open by us until you can view them on your personal computer.
The only instruction listed on this web page is to stop. The separation between the head and the platter is measured in nanometres. Given that the disk rotates thousands of times per minute, nothing manufactured to such tolerances will ever repair itself. With regards to all of the noisy disks brought to this bench, a successful recovery and an unsuccessful recovery depend solely upon how quickly someone was able to reach the power switch.
This drive arrived from a shop on Newland Avenue. It was producing a single tick per second, and had five years' worth of books on it. Two donor head assemblies were fitted, then an image was allowed to complete running on its own schedule. When finished, the company's accounting records were once again legible, with the VAT return still to be filed.
Generally, no. A clicking sound indicates that the heads have lost their bearings. A clicking sound doesn't indicate anything as far as what's happening with the disks under the heads, and those are the areas that hold your data. Most of the time donor heads and a low-speed, high-quality image will recover most of your files. Hours of running a drive after a click has occurred cause the damage.
No. This advice predates all drives you may be using today. Lowering temperature in a sealed disk introduces moisture into the unit, and the metal components shrink. When warmed, the moisture causes condensation which forms corrosion and adds another mechanical failure to the first.
The heads look for the servo marks placed by the manufacturer during production. Since these marks aren't found, the heads move to the ramp area and start again. The repetitive motion is what makes this audible from an external perspective. A damaged head, failing preamp or scratched/damaged platter each make similar sounds. Determining which component is causing trouble requires opening the drive on a workbench.
No. Regardless of what software requests to retrieve (files etc.), it must pass through the failed heads. Software simply keeps the drive attempting the last function needed to complete its destruction.
Leave it off. There are only a few start attempts left in your failing drive and each attempt uses up a little more of what remains. Our complimentary diagnosis will determine what files are readable.