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Question on understanding tibx files.

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I'm running Acronis Backup v12.5 13400 on premise.  The management server and all backup data is stored on a Dell NAS running Windows 2016.   We've only had Acronis installed a couple of months.  Outside of the NAS, the environment is all virtual.  Servers are backed up using the VMware Agent for Windows running from the Dell NAS which connects to vCenter. 

I'm documenting how to perform file level recovery following the instructions in the user guide, section 6.4.6 "Extracting files from Local Backups".   I'm having trouble understanding the number of .tibx files I'm finding.  The backup plan is of the entire server, with a Weekly Full, Daily Incremental and all 7 days of the week are selected.  Weekly backups are retained 4 weeks, Incremental backups are retained 7 days.     

When looking at the backup files, many of the servers have server-guid.tibx, server-guid-001.tibx, server-guid-002.tibx, server-guid-003.tibx, while others have also an 004.tibx.   I've found a few with just the tibx and an 001.tibx.  The only difference in the plans would be what day of the week the full backup is taken. 

Why are there a different number of tibx files?  I had thought that perhaps one of these was a full and the rest were incremental, but when you expand them, all of the .tibx files contain every recovery point for all 7 days.  Which one should I tell people to use to recover a file when the date they need appears in all of them? 

Any insight you could provide would be appreciated.

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Comments: 2016

Hello Cathy,

thank you for posting this question on Acronis forums!

A .tibx file is created every time when a full (or differential) backup is created. Incremental backups are added to the full ones. 

It is hard to say why some of your servers have only 3 full backups (as I understand, a full weekly backup is created on the same day of the week on all server): perhaps, they were not available when a full backup was being created or this backup task has been canceled on these servers.

All these .tibx files belong to the same backup archive - a backup set, every backup file from this set contains metadata with all available recovery points for the whole archive, that is why you see all recovery points when browsing any of a backup file. Thus, it does not matter which backup file to select when you need to recover a single file.