Currently we are facing an issue with Backup Exec 22 with lto9 media. Should we try to inventory the tape, it will fail eventually, then it can run on 2nd try. We can backup with said tape but every time we try to inventory, same thing happens.
We don't believe the issue is related to Backup Exec and Support for LTO9 tape media, as we were able to back up with the tape which mean we had initialized it.
Are you using tape labels? If so would recommend just doing a scan rather than an inventory each time.
Beyond that - as it sounds like you are using pre-initialized LTO9 tapes anyway, I would suggest collecting debug logs by running SGMon.exe and comparing the logs collected during the first inventory with those collected during the second (working) inventory.
Probably best to raise this as a ticket with support and let them figure out what the debugs show as the cause.
Here are a few things you can try to troubleshoot the issue:
If you have tried all of these steps and the issue is still occurring, you may need to contact Veritas support for further assistance.
Here are some additional things to keep in mind:
I hope this helps! Let me know if you have any other questions.