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ATIH 2012 Build 7133; Files CAN be restored but is it still corrupted?

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I get an occasional, irritating, message "The backup is corrupted" when validating a full backup of my whole primary disk (not sector-by-sector).

Previously I have wasted hours deleting, first of all the most recent (of two I keep) and backing up again, only to get the same message of corruption. Then I have deleted BOTH previous copies of my backup (even though the oldest version (I backup the whole disk every week) was validated as being OK) before I get the successful validation.

Today I got the message again that it was corrupted. Having read a few posts on here I saw that sometimes this can be caused by a bug in ATIH - BUT that if one is able to recover (or restore) a couple of files from the 'corrupted' backup, then everything is all right.

I booted from the Acronis Recovery Disc, and successfully recovered two files from the 'corrupted' backup. Can I rest assured that my backup is, in fact, error-free and dependable?

Thank you.

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Rather than an ATI bug, in my experience corrupted (or reported corrupted) archives are often caused by hardware issues.

"Corrupted" is, unfortunately, a rather non-specific error message, in spite of its rather specific sounding term. It really just means that ATI can't validate the archive, which can be caused by disk errors or connection errors, rather than any problems with the .tib file itself.

Validation failure is often due to hardware issues. To troubleshoot, see Grover's new backup and restore guides http://forum.acronis.com/forum/29618 and http://kb.acronis.com/content/1517

Run chkdsk /r on each partition of the internal drive, and on the external HD. If there are hidden partitions, assign letters to them so you can chkdsk.
Also run a drive checking utility from the drive manufacturer, as those sometimes catch errors missed by chkdsk.

Don't connect via a hub, a port in a monitor, a USB extension cord, etc. Connect the external drive directly to a USB port on the rear of the computer case.

Thanks very much for replying tuttle. What I did to try and save a bit of time was to delete the 'corrupted' backup from my ext HD, and then try backing it up again. And once again this worked! Backup was validated.

Am I wrong in thinking that if it usually validates OK (as it does) there is not likely to be much, or anything, wrong with my hardware? I swear that the connection was fine, and while it is backing up I avoid using the computer until it's finished.

I alternate with two 1TB ext HDs every week, and it averages out that one of the two gets a 'corrupted backup' notice roughly once every six months. I just wish that the log file was more specific in nailing the error.

Buzzard 104 wrote:
Am I wrong in thinking that if it usually validates OK (as it does) there is not likely to be much, or anything, wrong with my hardware?

That's not a safe assumption. The first backup could have written to bad HD sectors, while the second may have used different sectors. Run the tests I mentioned, and observe the caveats I gave.

Thanks tuttle. I shall work through the various tests over the coming days.

I ran chkdsk on all the partitions on both internal and both external hard drives and they passed OK.

I didn't do a thorough memtest for two reasons: 1. My computer is not out of use for long enough to have it incapacitated for hours and hours on end! 2. In the near future I intend to upgrade my mobo, CPU, GPU and RAM (up to 8 GB) anyway - although I will be using the same hard drives.

I have completed four weekly full backups now since my last comment without further mishap (or validation error), so I'm hoping it will now behave itself!

Thanks for your help.

Tries to restore my Windows 7 C:\ with an Acronis True Image 2012 backup.tib, an image of my 2 Partitions. Booted with Acronis Rescue disk. Chose a backup on my WD "Elements." an external flash drive, and got message "files corrupted" and backup failed to proceed. Learned later that I should have validated before attempting to restore because validation after backup (which I had done), may not apply when restoring !. Two other backups on the same flash drive proceeded but aborted with same message. An older backup on a WD Passport was successfully restored.
The initial error message also stated that I could attempt to mount the image. I did check the Flash drive for errors and fragmentation and there were none.
Today I mounted the previously allegedly "corrupted" backup and could see all my files.
1. Does that mean that had I validated first during the restore process the backup would have succeeded ?
2. Could I have mounted the image during the recovery attempt, and then restored it ? If so, how ?
Thank you.