I tried to run a differential backup after a full backup (in the same policy) but apparently i get back the same number of files backed up as the full backup schedule.
Here's the scenarios i have tested
Initially, I have created 1 file (named notepad1.txt) in a folder and I noticed after full backup completed, the archive bit attributed to the file been removed, and also in netbackup console, it indicated the numbers of file backed up was 2. I created another 1 file (named notepad2.txt) with A flagged and thus I ran the Differential-incremental backup; once the backup completed, the number of files backed up changed to 3.
In restoration attempt, i have chosen the latest catalog, i.e differential-incremental and as expected, i have seen 2 files been restored, but i believe by right, i should ONLY get notepad2.txt restored
I'd tried several attempts and sometimes, i noticed the differential-incremental backup works when I changed the systems time to the following date (Master, Media and Client servers) but many times, it did not. In my lastest attempt before posting this was having all the systems date changed to 5 days after full backup and it worked
All the servers mentioned above installed with Netbackup 7.0 (running on Windows 2003 32 bits, except Master server on W2k3 64 bits), I pushed them to 7.5 and still get the same result.
kindly advise