All drives are not getting utilized for backups
My environment is Netbackup 6.5.6 and currently there were few changes done at the hardware library end as we were encountering few of the drives in AVR/down mode regularly. And all was well after that for 1-2 days.
But now we are seeing that only 3 of the total 8 drives are being used or backups. All the drives are perfectly fine and all are used but only any 3 drives at once.
We have checked the maximum concurrent drive setting and multilexing setting and have tried with all the values (high, low, same) but result the same.
Also, output from '/usr/openv/netbackup/bin/admincmd/bpstulist -U' is simliar to the GUI which means the changes we are doing at the storage unit from the gui are being replicated correctly.
I need immediate help please as my backups are not getting completed due to the drives not being utilized for their maximum capacity.