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Incremental backup became full backup

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Hi,

I am using Acronis True Image 2014 Premium.

Recently I encountered a strange problem:

I have a backup task which uses full backup for the first time backup, and incremental backup in the following backups.

1. When I try to perform that backup task, True Image try to read the drive, but finally reports "Error occured while opening the file.". But I can confirm the drive is readable and all the old backup files exist on the drive correctly.

2. Since I cannot perform the backup task, I have to clone the settings of the backup task and create a new backup task, and then modify the new backup task output directory to another directory on the same drive. Then I start the new backup task. This time the new backup task is started and completed successfully. And produce a full backup of the drive.

However, the problem is on the second day, when I try to perform the new backup task again, I expect True Image will perform an incremental backup, but it actually produces another full backup again.

It seems that for both 1 and 2, True Image has some problems to read the files on the backup drive. But I can confirm the files under the backup drive are readable and I can open and restore them properly without any problems.

Why?

Thanks

0 Users found this helpful

Look again at the backiup settings via the "edit settings" mode.
Confirm that the backup task reads as you re expecting.

Your settings sounds like it will ultimately fill uip the disk as no old files removed.

Considering useing a new task such as GH12 incremental which has cleanup settings.

http://forum.acronis.com/forum/100416#comment-303423

Hi,

Thank you. I just figure out the trick. I used to mount a old backup from another old drive. Thus True Image cannot recognized any of my backups on the new drive.

I fix the problem by trying to mount a backup on the new drive, then unmount it. Then perform a backup again, this time True Image is able to recognize all the backups on my new drive.

Very strange but this method works.