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Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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Bad sectors

April 4th, 2010, 8:05

Hi i have a problem
I have 2,5 HDD from seagate, witch have bad sector on start of disk.
How can i create an area on disk witch starts on sector 27625006 and end 312581807? I tried mhdd and seatool but they can set only max sector. Is it even posible to set diferent start sector than 0.
sry about my english and thx for yours ideas

Re: Bad sectors

April 4th, 2010, 16:16

nettle wrote:Hi i have a problem
I have 2,5 HDD from seagate, witch have bad sector on start of disk.
How can i create an area on disk witch starts on sector 27625006 and end 312581807? I tried mhdd and seatool but they can set only max sector. Is it even posible to set diferent start sector than 0.
sry about my english and thx for yours ideas

If sector 0 is bad, then writing to it should result in it being automatically reallocated by SMART.

Could your drive be password protected?

You can check its password status with HDAT2.

HDAT2/CBL Hard Disk Repair Utility:
http://www.hdat2.com/

Re: Bad sectors

April 4th, 2010, 18:27

no sector 0 is good but i have around 1000 bad sectors at start of disk (aproximatly to 30 000. sector) and rest is good and i want to cut (resize) hdd. But i cant find software witch can haldle it.

Re: Bad sectors

April 4th, 2010, 18:50

nettle wrote:no sector 0 is good but i have around 1000 bad sectors at start of disk (aproximatly to 30 000. sector) and rest is good and i want to cut (resize) hdd. But i cant find software witch can haldle it.

I don't understand why you would continue to trust a disc with that many bad sectors, but why not create a dummy partition, eg NTFS, at the beginning of the disc and hide it from the OS?

To hide the partition, you need to change the partition ID byte from 0x07 (NTFS) to 0xDE, say. "DE" is sometimes used by Dell for their recovery partitions.

You can use a freeware disc editor such as HxD:
http://mh-nexus.de/en/hxd/

BTW, I have no idea how to truncate a disc by creating a HPA at the bottom end, assuming that is what you want to do.

I'm not a DR guy, BTW.

Re: Bad sectors

April 5th, 2010, 4:26

It is PERFECTLY possible to do what the OP want to do or even completely repair the drive -if possible- . Of course not with "free" resources. Nevertheless, if the bads are caused by surface problem e.g. due to shock, it's a "time bomb".

P.S. since when SMART do take charge of grown defects relocation ? I have seen pre-smart drives doing it ....

Re: Bad sectors

April 5th, 2010, 8:36

i dont know because hdd was in notebook i buy from friend. So there is no free soft witch can create HPA on start of disk?

Re: Bad sectors

April 5th, 2010, 9:52

It's not HPA (if you know what HPA is). And there's no free solution for doing what you want. A replacement drive (either new or used) is few EUR. ...

Re: Bad sectors

April 5th, 2010, 9:56

HPA goes at the end only
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