Bad sectors during backup - what are the consequences ?

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truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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Comments: 1

Hello

I recently changed my hard drive (copying the old disk with Acronis TrueImage 2014).
When I try to backup the new disk I get several messages that say "Failed to read sector xxx from hard disk xxx. Try to repeat the operation....
Please look at the attached file for the full message.
I hit "retry" but it errors again. I ran checkdisk with automatic bad sector recovery and ran backup again. Again I got those errors. If I choose "ignore all" the backup finally completes.

I guess the disk is physically damaged and I will have to return it, but what about the data ?

So basically I have 3 questions:
1. Is my assumption about the damaged disk correct ?
2. Can I trust a backup that raised such errors ? I mean, when I get a replacement disk, can I restore it from that backup ?
3. Knowing the bad sector numbers I guess I can find which files are affected and see how critical they are. How can I find the affected files from the sector numbers ?

Many thanks

Guy

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Tue, 12/17/2013 - 13:46
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truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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mvp

The first thing I'd do is to a full disk backup using the sector by sector option.
Then I'd use chkdsk on each partition of your disk. Using Windows disk management, look for hidden partitions, and assign drive letters to those if any to be able to run chkdsk on them.
You can try to run a file backup on the same partitions. ATI will choke on the faulty files and will tell you which ones it cannot backup. You can then decide whether these files can be deleted or not.
If the number of bad sectors is increasing, then your disk is dying.
You should be able to restore your first step backup to another new disk. Because you have a sector by sector backup, you need a disk of at least the same size, if not bigger. After you have restored, you can run chkdsk on the new disk to reset the marking of bad sectors.

Wed, 12/18/2013 - 03:57
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