Image backup stops on some clients

hy, on some client the image backup stops - in the server i can only see that the backup discontinued - but i can’t see why (i can’t remember the exact error message)
So i scanned the clients with the freeware hddscan - all the clients with problems had some badblocks (also logged in windows event log) - so it is possible to integrate a mechnism to identfy the error on the server ?

Kind regards

Thanks for your time - your software is great

another old hdd image progamm has an option --noerror

This option switches the programm to a special read mode where all intact sectors will safely read and bad sectors are excluded.
I think this is really important -because i backup the hdd drive to avoid data loss -and a bad sector is an indicator of a hdd can will break in the next time - but because of the bad sectors you will not have a backup if you don’t look in the logfile.
can this be handled automatically ?!

Was the error message on the server

Error while reading from shadow copy device -1

?

It’s a difficult decision, but I think failing the backup completely is the better option. Having a corrupted backup may be bad.

The error message can be improved though.

Can you try if chkdsk /R fixes this problem? Otherwise I may have to use an API function to read the bad clusters and skip them.

I repaired the hdds with bad cluster by fully formatting the hdd - the hdd replaced the bad sectors by good spare sectors - the checkdisk command cold work - but i noticed that the normal checkdisk just mark all the bad sectors as bad in ntfs - but the hdd keeps these sectors until a full format trys to write something to the bad sectors. (checked with full hdd surface read test by hddscan after checkdisk /r)
I have done the full format before your post - so i don’t have a hdd with bad sectors right now.
I think that after a a scandisk /r all bad sectors are marked as bad for NTFS and urbackup should work.

Perhaps you can make some tests too with the utility hdat2 - this utilty has the option to create “bad sectors” for testing - theese pseudo bad sectors are reverseable to good ones.

Thanks in advance
PS: urbackup is a goold utility to find bad sectors - i would’t recocgnized it until urbackup stops the backup

Hint: A commercial imageing solution writes in the faq that after a checkdisk /r the bad sectors are marked as bad in filesystem - but if you restore the image to another hdd - the marked bad sectors numbers in the filesystem are also restored -so you have to use chkdsk c: /b to re-evaluate bad sectors.