Hi All,
We have a Linux box acting as a media agent (RHEL 6.8) and we have two separate VTLs with drives zoned to it. There are 32 drives in all (16 per VTL). We are using the lin_tape driver and the device files show up as /dev/IBMtape0 for lun 0, /dev/IBMtape1 for lun 1, and so on.
The device files for Library #1 were 0-15, and 16-31 for Library #2. After a reboot they flip-flopped. So now where /dev/IBMtape0 was Drive #1 on Library #1 it is now Drive #1 on Library #2. (Also, /dev/IBMtape16 is now Drive #1 on Library #1).
I have gone into the GUI and renumbered them in the Devices section so at least my backups will run for now. But, what is it that caused this to happen and can I expect it to happen again if I have to reboot? Is there a setting somewhere to fix this?
Thanks.