Thanks for the Great post. I did have a few changes I had to make to get the commands to run.
ran this for each drive 1-4
$lto4tapedrive = Get-BERoboticLibraryDevice | Get-BETapeDriveDevice -name "Drive #1*"
Then ran this for the LTO 4 Drives:
Set-BETapeDriveDevice -in $lto4tapedrive -WritableMediaType LTO4*, LTO3* -ReadableMediaType LTO2*
or this for the LTO 5 drives:
Set-BETapeDriveDevice -in $lto4tapedrive -WritableMediaType "LTO [8]", LTO4* -ReadableMediaType LTO3*