Question about backup selection and incremental backup in Netbackup

Question

Hello everyone,I have question regarding to the Netbackup incremental backup.Scenario#1There are folder and files in that folderD:\folder1D:\folder1\file1.txtD:\folder1\file2.txtbackup policy name: mypolicy1backup schedule: full and incrementalbackup selection:&nbsp; "D:\folder1"Full backup schedule will backup both "file1.txt" and "file2.txt"Then create a new file D:\folder1\file3.txtThen trigger incremental schedule, file1.txt, file2.txt and file3.txt are backed up. (should it be only file3.txt!)If I configure backup selection to:&nbsp; D:\folder1\*&nbsp; then test with the same scenario. The only file3.txt is backed up by incremental backup as expected. Please adviseScenario#2There are multiple folders and files in those folders.D:\folder1D:\folder2backup policy name: mypolicy2backup schedule: full and incrementalbackup selection:&nbsp; "D:\folder*"Full backup schedule will backup both "D:\folder1" and "D:\folder2".Then create a new folder "D:\folder3" and create new test files in folder "D:\folder1"Then trigger incremental schedule, all there folders and all files in those folder are backed up.How can I configure incremental backup to backup only new folders or new files in folders without specific folder name?&nbsp;

riaanbadenhorst · Answer

Hi
One question, are you letting the schedule execute the backups of are you doing it manually? If think if it's manual, and the required time specified in the frequency is not met, it might back everything up.
If you don't want to wait long, try setting the frequency for full to say 10 minutes and the Incremental to 1 minute.
[edit]
I tried this myself and found a message in the bpbkar log that says the
&lt;4&gt; dos_backup::_mod_include: INF - &lt;C:\folder1&gt;:detected recently created directory, file create time:&lt;1604502147&gt;, time elapsed since last incremental:&lt;1604499256&gt; It will be backed up in full
Have a look in the bpbkar log on your client and see if you find something like this.

watcharapongs · Answer

Hello,If I set&nbsp;backup selection:&nbsp; "D:\folder1", it will backup everything regardless of full or incremental.If I set backup seelction: "D:\folder1\*", incremental will backup only the new file.I'm doing it manually for both scenarios.What does that message mean?

marianne · Answer

watcharapongs&nbsp;
Have a look at Host Properties -&gt; Clients (select client name) -&gt; Windows Client -&gt; Client Settings
What are the settings for Archive Bit / Incremental?
See NBU Admin Guide I for explanation: https://www.veritas.com/support/en_US/doc/18716246-129889741-0/v40145790-129889741

jnardello · Answer

Question - you're saying that everything is getting backed up. What is telling you that ? The output of bplist ? Or you're just seeing the folder path show up in the Job Details and assuming ?

You're not doing anything with accelerator right, just a vanilla backup ? I'm asking because Accelerator is known for running fulls under several different conditions regardless of the triggered schedule type.

Assuming a vanilla backup and the files are not being changed by external forces, you ought to be able to run manual incrementals until the cows come home and not have the unchanged files touched by the job.

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Question about backup selection and incremental backup in Netbackup

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