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Incremental backups missing, but TIB files are there

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Beginner
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From time to time I have the problem that some versions of incremental backups are not showing up in Acronis True Image. I noticed that problem first in TI 2013 and it still seems to be there in 2014.

I have attached screenshots of two examples.

Example 1 is a file backup which is done weekly.

Even if I right click on a TIB file which is missing in Acronis (e.g. NAS_Bilder_inc_b6_s14_v1.tib from Feb. 5th), and choose Recover, it only shows me the last version that is available when browsing the versions (Dec. 25th).

Example 2 is a disk backup.

Here there are even multiple "holes". The Event Log doesn't show any problems.

Any help would be appreciated. So far I never needed one of the missing backups. But the day will come, and then I am in trouble.

John.

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Legend
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#1

General comments:
1. As long as the files exist, they can be restored--irregardless of whether they appear in the TimeLine display.. When restoring a disk or partiton backup, the method of recommendtion is to use the TI Recovery CD.

2. Item 2 above. Try using the "Add backup" opiton located at top of screen.
Click the Browse option and browse to the storage folder containing the missing files.
Highlight all the missing files and click the "Add to backup list".
Then look again at the Timeslice display of files to see if they now appear. Their appearance may even be found in newly added tasks.

3. If successful with item 2, you can try the same procedure on the other missing files.

4. I have seen this issue before so it is definitely not new. However, I would discourge your having the program make too many incremental backup which are old dependant upon the one full. If you wanted to restore your most current backup on a completed chain, the program would need to restore all 21 inc plus the 1 full and if any of the 21 inc are not readable, all would not be restorable. Consider reducing the 21 number of consider the use of differential instead of incrmental. With diff, only 1 diff plus the full is needed to get you restored.

5. Hopefully, you are using the automatic cleanup opiton which is part of the custom incremental backup scheme. The automatic cleanup (by the program) provides for a revolving deletion of the oldest backups.

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#2

Hello John, Grover,

Grover, thank you very much for helping!

John, first of all we need to make sure that archive itself is ok. Therefore:

1) right click the missing incremental slice in Windows Explorer and select Archive-Recover

2) start your computer from Acronis bootable media and check in recovery wizard if all the backup versions are shown. 

Please let me know the results. If in any of two variants you can see all backup versions correctly, I'll provide you with further instructions and we will rebuild  the backup archive database.

Thank you in advance for your answer!

Beginner
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#3

Hi John,

For what its worth, I also have the same problem. Seems to be a bug (or feature) with Acronis TI2014. I have an ongoing support case with the support engineers. So far, no explanation, the only solution being to use the True Image bootable media to locate and restore missing files...

Cheers,

Ben

Beginner
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#4

Big thanks to everybody for the help.

I did try to do following, which didn't work:

1. "Add Backup" from the toolbar. I even deleted the Backup in Acronis beforehand (Delete / Settings only).
2. Right clicking on the missing File in Windows Explorer and selecting Archive->Recover. The timeline opened, but the same days were still missing.

In the mean time I deleted the whole backup and started from scratch. Sorry, Anna.Trifonova, I read your post after I did that already and wasn't able to try your method 2.

I don't make that many incremental backups now, like GroverH suggested. However, what I would really like to do is to create a full backup once a month, a differential backup every 7 days and an incremental every day in between. Is that possible somehow? So far I only figured out how to do either all incremental or all differential backups.

Thanks.

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#5

Hello Everyone,

John, you are right, in Acronis True Image 2014 there is no such scheme using which you can create both differential and incremental backups. Since True Image is supposed to be used by home users we don't want to overload it with options.

But in our business line of products such schemes are available. E.g. in Acronis Backup 11.5 for PC.

Ben, I sent you an instruction on how to rebuild backup database via PM. it should help in such issues.

Thank you.

Beginner
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#6

Sorry to warm up this old thread. Like I said in my last post, I deleted the backup set and started from scratch. But after a couple weeks, I started to get missing entries again. This time I completely deinstalled ATI. Made sure that there were no leftovers in C:\ProgramData\Acronis\ and reinstalled ATI. That was about two month ago and the problem did not show up again.

Now I can't prove this. But before I deinstalled, I was looking around in C:\ProgramData\Acronis\TrueImageHome\Database\archives.xml. And there seemed to be entries from an old backup set with the same name as the new backup set.

Just in case this happens again. Is there a way to completely wipe ATI's memory (wipe and recreate the backup database) without reinstalling ATI?

Thanks,
John.

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#7

Yes, you can delete the archives.xml file. After deleted and True Image is started again the application will recreate the archives.xml file.

Legend
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#8

John,
Would you consider posting pictures of the problem task showing the backup scheme in use?

if the scheme is using controls that involve "elapsed days" or "disk space limits", then the program will use consolidation and you will be missing the files which were consolidated. I will not use any setting which involves the combining or consolidation of data. These example below simply delete the oldest backups once the program reaches the number of chains you wish to retain.

This type scheme below is what I ask that you consider.

GH11. Create Custom Full Backup Scheme.Keep 4 versions (chains).
GH12. Create Custom Incremental Backup Scheme. 6 Inc, Keep 4 chains.
GH13. Create Custom Differential Backup Scheme. 2 Diff, Keep 2 chains.
GH14. Custom Differential Backup Scheme . 6 Diff, Keep 4 chains. & folder
==================================================================
Edit/added:
To clear out all backup tasks so the history file starts over fresh. The tib files are not affected and remain untouched in their storage folders.
No tasks will remain and new tasks will need to be recreated. Remember, editing existing tasks are cause for the task to malfunction. Once the task is in use, make no further changes to the task. If changes needed, start a new task and stop using the old task.

How to delete the Archives.xml file
Prior to deleting the archives.xml file, Acronis has unofficially suggested that you first
01) Stop the program.
02) Stop all acronis services.

3) select "show hidden files and folders"
http://windows.microsoft.com/en-gb/windows/show-hidden-files#show-hidden

4) delete following folders:
C:\ProgramData\Acronis\Home\Database
C:\ProgramData\Acronis\TrueImageHome\ArchiveOptions
C:\ProgramData\Acronis\TrueImageHome\Database
C:\ProgramData\Acronis\TrueImageHome\Scripts

5) start Acronis services
6) start Acronis True Image 2014 and add backups
http://www.acronis.com/en-us/support/documentation/ATIH2014/#3504.html
7) check if it solves the issue

Beginner
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#9

Yes - I have routinely used an option to keep 30 days on my backups. Never occurred to me that this was creating a 'consolidation' dependency that was the root of most of my problems.

I am now changing to "keep # series" of backups and using either differential or incremental backups. I use incremental backups with jobs that have to be written over my WiFi network - simply to minimize the backup run time. And since these are written to my home server with several TBs of RAID storage I'm okay with letting the series run to 20 (or maybe more) incremental backups before another full backup.

The only serious issue I've had has been when the system will do a backup, but just before it completes - it fails - saying it cannot locate some backup file that isn't even part of the current 'chain' of incremental or differential backups. I still don't understand why THAT situation should cause a failuire of the backup to complete.

If clearing the Archive.xml file will cure this problem - then why cannot Acronis put a prompt at the failure point that permits the backup to complete w/o worrying about the missing prior backup file? And if the user selects to accept the backup regardless of the missing backup file, then use that opportunity to clean up the Archive.xml file sufficiently to avoid the problem on future backup runs.

This stuff isn't rocket science. And quite frankly, until Acronis switched to the current backup methodology (in the past few years) it used to work with no such problems. I think someone in software design simply over-thought the process and inadvertently left this logic bomb in place.

After a few more weeks I'll try to post my results after changing to a "consolidation free" configuration. If that proves to be trouble free, then all I can say is that Acronis owes it to their users to point out the potential problems that can arise when using "consolidation" and also explain what options result in said consolidation.

Legend
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#10

The only serious issue I've had has been when the system will do a backup, but just before it completes - it fails - saying it cannot locate some backup file that isn't even part of the current 'chain' of incremental or differential backups. I still don't understand why THAT situation should cause a failuire of the backup to complete.

Other users are reporting this type problem. In my opinion, It is either a network path issue or a network permissions issue. I don't user so cannot test nor offer any suggesions. If the backup or validation is in progress and the connection lost (for whatever reasons), this could explain what is happening. The deletion or editing of the archives.xml is not a a cure for this issue.

Beginner
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#11

Thanks Grover, for all that information. Really appreciate it.

GroverH wrote:
John, Would you consider posting pictures of the problem task showing the backup scheme in use?

Like I said, I reinstalled ATI. So I don't have any screenshots of the backup scheme screen. But from Memory. The first time around (from my first post here) it was:

   Incremental, creating a full version after ever 20 incremental version, store no more then 3 version chains.

As you said before, 20 incremental versions might have been reckless. The second time I used:

   Differential, creating a full version after ever 5 differential version, store no more then 5 version chains.

That was basically GH14 from your list.

GroverH wrote:
if the scheme is using controls that involve "elapsed days" or "disk space limits", then the program will use consolidation and you will be missing the files which were consolidated. I will not use any setting which involves the combining or consolidation of data. These example below simply delete the oldest backups once the program reaches the number of chains you wish to retain.

No, I don't think it was consolidation. Because all the TIB files were there. And a lot of older backups showed up in the in the backup history as well (like in the screenshot from my first post: https://forum.acronis.com/system/files/forum/2014/02/55459/backupset2_acronis.png). Every now and then the version history would have a hole starting at an incremental backup and would not continue until the next full backup. Although all the TIB files were there. Sizewise they looked ok too.

It was even stranger the second time around, when I used the differential scheme. The history would for example show a full backup, two differential backups and then nothing (3 missing) until the next full backup. With the incremental scheme I would understand, that if something went wrong with an incremental backup, that the following incremental backups would also be broken (although there were never errors in the log). But why the same phenomenon with differential backups. I repeatedly had that happening. After a random differential backup, the version history would show no further differential backups until the next full backup.

GroverH wrote:
Edit/added: How to delete the Archives.xml file
...

Thanks a lot. That's useful information.

Beginner
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#12
GroverH wrote:
Other users are reporting this type problem. In my opinion, It is either a network path issue or a network permissions issue. I don't user so cannot test nor offer any suggesions. If the backup or validation is in progress and the connection lost (for whatever reasons), this could explain what is happening. The deletion or editing of the archives.xml is not a a cure for this issue.

Hmm maybe. But I kind of doubt it was network issues. But even, if that's the case. Why was there not a single error in the logs: picture of event log

Legend
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#13

Hi John,
I have digested your comments. The dif scheme using the "store no more than x" should have worked.

Manual or program consolidation will remove file but no sure that is an issue here. Using the cleanup option based on "elasped days" or "disk space limits" will also causes consolidation and missing files. Missing destination disk would also cause no backup files but log file should display that if it were happening. At this point, who knows.

I have been doing some testing lately and find that diff files can be deleted if the deletion is done within the progam and the numbering will continue corrrectly--or at least that has been my results.
This is just an example of what is working for me.

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Beginner
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#14

Thanks Grover.

Well, the reinstall of ATI is almost a month ago. So far the problem has not reappeared. I just hope is was a screwed up database.