Tape configuration lost on reconfiguration reboot
I am unix admin. I went into a situation where looking for help for permanent solution.
Unix SA performed reconfiguration reboot to fix disk issue on Netbackup media server. After reboot, we found all tape drives were visible at OS leve ( cfgadm ) however, Netbackup SA was missing half of tapes in tapes configuration. Lateron, Netbackup SA had to perform tapes reconfiguration to get all tapes back to availability.
We understand during reboot, hardware device id got changed for few of tapes and hence impacted tapes configuration for netbackup.
How can we make device id persistent for tapes during reboot so that we dont face this issue on next reboot or reconfig reboot ?
Appreciate all response in advance !