Question:
HOW TO RECOVER DATA FROM A CRASHED HARD DISK?
MIHIR
2012-11-28 11:48:56 UTC
Recently, I got my 80 GB HD Crashed. All the DATA it had stored within is lost. It includes everything from my Highschool days and college life memories captured. Although I'd uploaded some of my memories on sites like Photoshare, but the major chunk was stored in the HD that unfortunately got crashed.
So,is there any way to retrieve the data back. I am more concerned of the photo files that were in it, rest all the files are in my current system. Is there any chance of even recovering atleast a bit of the data? Do you've any idea of possible personal whom I should connect to? And how expensive is their service. Like, I'd around 12 GB OF MY 80 GB for IMAGES. So, I want only that data to be recovered. My location is MUMBAI *MAHARASHTRA)
HARD DISK DETAILS: SAMSUNG HD 80 GB, SP0822N REV.B,
LBA 156,368,016.

thanks in advance.
Five answers:
Richard
2012-11-28 13:56:02 UTC
There are several different types of failure of a hard disk.



"Crashed" refers to one particularly nasty type of failure where one of the disk heads hits the disk surface causing scarring on the disk surface and normally destruction of the disk head. Debris from the crashed head can contaminate other platter surfaces and cause other heads in the drive to crash. The particular platter (disc) that is damaged is normally no longer accessible particularly on the part of the disk where the scar is. Other platters in the drive should still work providing they have not suffered secondary damage, although any files that included parts of the file on the damaged platter may be considered lost. Large files are more likely to suffer missing segments from such a failure. Head crash failures are often accompanied by screeching noises from the drive as the head and disk come into contact.



On older drives, the heads are allowed to land on an unused part of the disk when the drive stops. Later drives have a parking area for the heads that lifts the heads clear of the disk surface. On drives that land the heads on the disk and have had a large number of start-stop cycles, the static friction between the heads and the platters increases as the heads polish the discs when they land. Eventually, the static friction may be too much for the motor to spin the disk when power is applied. Sometimes rotating the drive sharply in the plain of the disk so that the disk moves with respect to the heads is enough to allow the drive to work for a few more hours.



If the motor is not spinning the disk, then this can be an electronics failure. In this situation, replacing the electronics board with the board from an identical drive can allow the disk to be copied.



Electronics failures can also prevent the drive from reading its data even if the motor is working. Again, replacing the electronics boards will often allow the data to be recovered.



Finally, a major corruption of the disks file system can appear as though the disk drive has failed. Specialist recovery software may be able to recover lost files. A scandisk may not be able to repair the file system after a major corruption.



Recovery procedures that involve opening the sealed chamber where the platters and the heads operate can cost hundreds of dollars, and if the platters' surfaces are damaged, the results are not guaranteed.



Recovery procedures that do not require the sealed chamber to be opened will generally be much cheaper. There is still no guarantee of complete success.
rowlfe
2012-11-28 12:06:31 UTC
In general, when a hard disk fails, it simply "wears out" the moving parts. There is NO recovery from worn bearings without a professional service getting involved. What a professional recovery service will do is recreate the drive from the parts into another drive. In other words, in a clean room as the manufacturer did, they will take the platters and head assembly from your drive and put them into a brand new drive of the exact same model as you have. This is very labor intensive because of the manual labor AND the "clean" area in which the work is done. New drive, your old platters. OK, so at this point, it MAY be possible to READ the entire contents of your drive onto a completely separate new drive. THAT costs a lot of money because of the man-hours of labor involved and is NOT something that YOU as an end user can DO. How much is this data worth to you? This kind of data recovery service gets really expensive, really fast.



That said, does the drive "spin up" when energized? When you turn the power on, with your fingers on the drive case, you should FEEL a small amount of vibration from the platter servo motor as it starts itself up; then you should feel the heads move as the drive performs an internal test. If you feel and hear these things, it MAY be possible to salvage the data. Install this drive as a second drive in another computer. And then see what you can do with it. Try to run SCANDISK or any other disk utility program you might have. It is remote, but possible that SCANDISK can "fix" the problem IF it is related to the directory and file system on disk. No guarantees. It could also be that the disk is simply "there" and you can then copy off the files elsewhere. It is worth a try at least...
kwsyk
2012-11-28 12:46:01 UTC
Open the HDD from your computer carefully, connect it to another pc's cd rom's slot. Check the connection properly. Restart the computer. Then you will able to see your hard disk's drives like removable drives. Then simply copy and paste your data.
2012-11-30 07:06:02 UTC
if HDD is showing in Laptop then " Right click-->Properties-->Tools-->check now" Select both option and check for errors. And then Fix it.

If Data is formatted the use PANDORA RECOVERY to recover the data.
Shubhu
2012-12-01 17:13:47 UTC
I think you should do 1 thing :



log on to Snapfiles.com

On the Search box type "restoration"

download it & extract it ......try coz i tried once & i got my bit files .☺


This content was originally posted on Y! Answers, a Q&A website that shut down in 2021.
Loading...