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Help :which program isolate bad sector permanently?

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February 2, 2013 10:07:08 AM

Hello,
i have a 1.5 Tb seagate disk (NTFS format)

when i check with crystal disk info it notices me reallocate sector count (12/36)



i want to use this hdd for a short time more (And to copy data to other disk ) ,and i have some problems which i'm not sure about ,please help :

1. when i copying the data from this disk to other hdd ,
I wonder is it needed to isolate/mark the bad sector (without formatting/recreating partition the disk ), sothat we can protect the bad data copied/writed (in my case the reallocate sector count has not reached thresold, is it needed ?)

2. is there anyway to know if the data is on the bad sector - when copying ,accessing ? (is there any error noticed ? )

3. i read some similar topic and found HDAT2 and windows check disk tools ,but i'm not sure if them can isolate/mark the bad sector permanently
(such as when we format the disk,is the marked bad sector still isolated/marked ? (not included new bad sectors appear after scanning)
if using windows check disk tool ,should we use which way ?
1. use tool=> option =>check disk
2 .or use CHKDSK [drive letter] /F /R (i don't know if "/f/r" it's correct in my case ,please tell me which i should type in this case for best result

4. please tell me which program can isolate/mark the bad sector faster (or if you know any better tool ,please tell me)

Thank you very much
a c 81 G Storage
February 2, 2013 10:50:53 AM

There is no need to isolate the bad sectors and no program to do that. The disk itself will do that. Don't fiddle around with it, but backup / copy your data now! Windows will tell you about lost data that could not be restored. The number of bad sectors will increase fast and any bad sector means lost data.
February 2, 2013 12:03:33 PM

noidea_77 said:
There is no need to isolate the bad sectors and no program to do that. The disk itself will do that. Don't fiddle around with it, but backup / copy your data now! Windows will tell you about lost data that could not be restored. The number of bad sectors will increase fast and any bad sector means lost data.


Hello noidea_77 ,

thank you for fast replying ,i'm not sure i understand it clearly,so please tell me

1. you wrote "Windows will tell you about lost data that could not be restored"
you mean it will tell only when checking disk ,or when the corrupt data acessed ,copied ?
because i turned off checkdisk before ,is it needed to turn it on and making a check before copying data ?
(i still turn S.M.A.R.T. on in the BIOS)
2. when copying ,if there 's no error noticed ,that means there is no data on the bad sector,and the copied data is not corrupt ?


3. i also read a answer at http://superuser.com/questions/435405/avoid-read-write-...
Quote:

Modern SATA harddisks (and several decades old SCSI harddrives) detect bad sectors and reallocate the data to spare sectors. This usually happens without the user noticing it. Problems only occur after the drive runs out of spare sectors, but SMART should have allerted the user long before that happens.

(Unless you or HP turned S.M.A.R.T. off in the BIOS).

Sometimes you can force the drive to do one more set of by trying to write to all sectors. Including the broken ones. This will fail and the drive will know the sector is bad and willa void that sector in the future.

But realistically: read all the data from it that you can. Then get a new drive. Drives are replacable. Lost data is generally not replacable.


the data 's only lost when the disk run out of spare sector ,is it when the reallocate sector count >= thresold ?
"SMART should have allerted the user long before that happens"

so we don't have to worry about lost data when the reallocate sector count < thresold ?
!