Hi Stas,
it was mentioned before and I also mentioned that I changed the properties of the different LTO tape drives here. The unneccessary INVENTORY runs fine but nevertheless both drives are used to make the inventory, as PKH already mentioned, as the drive cannot identify the tape without the media being inserted.
Therefore, the SCAN job is sufficient, as it reads the barcode labesl and if those end with a suffix of L3 for the LTO3 tape media and with a suffix of L4 for the LTO4 tape media, then the library robotic puts only the correct tape media into the drives (as they are configured) and this works.
In a job, you can configure, which drive to use for the job and the robotic inserts the right media. If you don't have any more L3 media for the LTO3 tape drive, the job won't run, as LTO4 media is not inserted, cannot be used, as the drive doesn't support it and as this media is deselected as well!
For the LTO5 tape drive, only LTO4 media is allowed at the moment, so jobs that seek for tape media won't find one, if there is no more LTO4 media available and LTO3 media won't be inserted, as the drive is not allowed to use LTO3 media! That's simple now.
I will no longer initiate an INVENTORY job, as it's time consuming and as the job is done from the robotic library cause we always use barcode labels.
Regards,
Didi