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Author Topic: MyDefrag Messed my Drive Badly!  (Read 3639 times)
ben480
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« Reply #15 on: June 17, 2009, 09:15:33 pm »

Im sorry, but I couldnt help comment.

Seeming Im no longer a regular, Im going to do the honours...

Your ranting and its oozing too much over confident cockiness.   Bad Sectors are that, areas of the disk that are NOT repairable, sure you can remove the flag that classifies it as a bad sector, but its still physically faulting in that area of the platter.  I say you don't have bad sectors at all, rather file system corruption.  If you truely have bad sectors and hundres of thousands of them, and they appeared out of no where, then you better rap your hard disk in ice, and do what Jeroen said and use GetDataBack, or failing that SpinRite for reading the damaged sectors by moving the head in particular motions to increase the likihood of reading the magnetic data correctly, cause your disk is on its last legs.

In your instance, bad sectors in your quantity will certain produce 'grown defects' rapidly.

By the way, that clicking sound is not a feature.



Ok, first my drive doesn't do clicking sounds and I know a truckload about that dreaded clicking sound. I have to disagree with you about Bad sectors as completely unrepairable. Physical bad sectors, Sure, but NOT magnetic bad sectors. Most bad sectors are magnetic in nature and 97% of hard drives are repairable with a simple software as I stated earlier. These softwares are not popular simply because hard drive companies make them shut up by every means so to sell more new drives! Only PC repair shops buy those bad sector repair softwares and YES, they work!

As for physical bad sectors, people don't normally start throwing their drives around and platter surfaces are designed to work for 10-15 years under normal usage.

Heat is the main culprit in demagnetizing sectors. It's an over time thing and dependant on how much you use your PC.

My drive is OK now after remagnetizing surface and bad sectors have all been repaired and I also reset the allocation table so that windows sees no bad sectors, however I agree that temps are too high on that drive after checking it out. I would have never posted here if I had only checked the temps first. Heat over time was the culprit and demagnetized almost the whole surface thus so many bad sectors. I need a new drive simply.

Now, If only they can start selling those Solid State Drives at a more affordable price.
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schitzn
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« Reply #16 on: July 24, 2009, 10:20:10 am »

Im sorry, but I couldnt help comment.

Seeming Im no longer a regular, Im going to do the honours...

Your ranting and its oozing too much over confident cockiness.   Bad Sectors are that, areas of the disk that are NOT repairable, sure you can remove the flag that classifies it as a bad sector, but its still physically faulting in that area of the platter.  I say you don't have bad sectors at all, rather file system corruption.  If you truely have bad sectors and hundres of thousands of them, and they appeared out of no where, then you better rap your hard disk in ice, and do what Jeroen said and use GetDataBack, or failing that SpinRite for reading the damaged sectors by moving the head in particular motions to increase the likihood of reading the magnetic data correctly, cause your disk is on its last legs.

In your instance, bad sectors in your quantity will certain produce 'grown defects' rapidly.

By the way, that clicking sound is not a feature.



Ok, first my drive doesn't do clicking sounds and I know a truckload about that dreaded clicking sound. I have to disagree with you about Bad sectors as completely unrepairable. Physical bad sectors, Sure, but NOT magnetic bad sectors. Most bad sectors are magnetic in nature and 97% of hard drives are repairable with a simple software as I stated earlier. These softwares are not popular simply because hard drive companies make them shut up by every means so to sell more new drives! Only PC repair shops buy those bad sector repair softwares and YES, they work!

As for physical bad sectors, people don't normally start throwing their drives around and platter surfaces are designed to work for 10-15 years under normal usage.

Heat is the main culprit in demagnetizing sectors. It's an over time thing and dependant on how much you use your PC.

My drive is OK now after remagnetizing surface and bad sectors have all been repaired and I also reset the allocation table so that windows sees no bad sectors, however I agree that temps are too high on that drive after checking it out. I would have never posted here if I had only checked the temps first. Heat over time was the culprit and demagnetized almost the whole surface thus so many bad sectors. I need a new drive simply.

Now, If only they can start selling those Solid State Drives at a more affordable price.

Your drive is OK now after remagnetizing surface?  Are you kidding me?  Your telling me your software can modify the physical properties of a disk platter? LOL

Bad sectors are there and there to stay, either rust, dust or areas that loose their magnetic capability.  If your hard disk miraculously has bad sectors that dissapear after a repair, it would be either:

1. The bad sector will now be invisible until the next write/read request occurs and the OS determines a CRC issue.

2. The firmware or SMART of the hard disk has intelligently pointed that bad sector to a reserved space on the disk, just as they do when they are released new with defects.

When a disk gets bad sectors, you get rid of it quick because of 'grown defects', you don't persist with it and attempt to repair them.

If your adament on remagnifying disks, then please, prove me wrong and show me how you go about remagnifying a disk with software or otherwise (Please post some links).
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jeroen
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« Reply #17 on: July 24, 2009, 05:57:13 pm »

I agree with schitzn. Disks that show bad sectors can sometimes (not always) be "repaired" by re-magnetizing. But not forever. The disk was marginal, and it is very likely that the exact same problem will come back, within weeks or months. So I think the prudent advise is to buy a new harddisk. How much is your data worth? Better safe than sorry.
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Darlis
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« Reply #18 on: July 24, 2009, 06:10:03 pm »

Tools like HDTune can read the SMART attributes from the disk (if supported). If the disk already uses these backup sectors, then it should be visible there (and probably highlighted with yellow or red). The name would be something like "Reallocated Sector Count".
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