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Windows 7: How long does system re-image process usually take?

04 Jan 2012   #21
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Hi,

OK. The Rellocated Sectors count is approaching the recommended threshold specified by the disk manufacturer - this can indicate imminent failure of the disk. As the count increases, the read & write speed of the disk decreases - this is what may be causing the slow backup since the disk drive head has to do more work to find remapped sectors on the disk - perhaps this is the noise you hear, but I'm unsure. Do you find that general copying to/from this drive is slower than expected?

It may be time to exercise some caution and invest in a replacement external drive since this one sounds like it holds all your backup information.

Regards,
Golden


My System SpecsSystem Spec
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04 Jan 2012   #22
Kellylout

Windows 7 Home premium 64 bit
 
 

Yes it is fairly slow. The external disk is where I had to keep everything as my internal memory was full however I recently got a new internal disk and it was split into C and D so I have space on there to move my things I guess. So what does Rellocated Sectors count actually mean?

Thank you for your help
My System SpecsSystem Spec
04 Jan 2012   #23
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Hi,

Every drive has more than its stated number of sectors - these are spare sectors. My understanding is that when the disk finds information on bad sectors, it moves (reallocates) them to the spare sectors. Once the number of spare sectors starts running low, the S.M.A.R.T system warns you that the number of spare sectors is running low. If you are attempting an operation on a bad sector and the disk has no more spare sectors to move information too, then the trouble starts.

You can read more about S.M.A.R.T here:

S.M.A.R.T. - Wikipedia, the free encyclopedia.

Regards,
Golden
My System SpecsSystem Spec
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04 Jan 2012   #24
writhziden

Windows 7 Home Premium 64 Bit
 
 

Quote   Quote: Originally Posted by Golden View Post
Hi,

Every drive has more than its stated number of sectors - these are spare sectors. My understanding is that when the disk finds information on bad sectors, it moves (reallocates) them to the spare sectors. Once the number of spare sectors starts running low, the S.M.A.R.T system warns you that the number of spare sectors is running low. If you are attempting an operation on a bad sector and the disk has no more spare sectors to move information too, then the trouble starts.

You can read more about S.M.A.R.T here:

S.M.A.R.T. - Wikipedia, the free encyclopedia.

Regards,
Golden
This is correct. It is common for a hard drive to accumulate a small amount of bad sectors over heavy usage. However, when a drive starts to fail due to a mechanical problem involving the head of the drive (the head is what reads each sector), the number of bad sectors grows much faster due to physical damage to the sectors. This eventually results in a hard disk failure as the bad sectors surpass the spare sectors. The noise heard may be a combination of the drive trying to find spare sectors, and the head rubbing against sectors as it moves to do so, further damaging sectors as it moves. If the mechanical damage is severe enough that both are occurring, move any important data on the drive to another drive ASAP before the drive fails outright.

Further reading: http://www.ntfs.com/hard-disk-basics.htm
My System SpecsSystem Spec
04 Jan 2012   #25
Kellylout

Windows 7 Home premium 64 bit
 
 

Ouch okay thank you all for your help. Bad times if my drive fails have only had it a year
My System SpecsSystem Spec
04 Jan 2012   #26
kado897

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bit Service Pack 1
 
 

I'm afraid it happens. If it's less than a year it may be worth checking your warranty.
My System SpecsSystem Spec
25 Jan 2012   #27
writhziden

Windows 7 Home Premium 64 Bit
 
 

Were you able to get your data back? Did you try getting the drive fixed under warranty? Let us know if you still need assistance.
My System SpecsSystem Spec
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 How long does system re-image process usually take?




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