Can't read or write label to LTO-6 tapes

Hello,

If your LTO6 is a Half Height model, please set the Tape Drive Type in Arkeia from LTO6 to LTO5.

WHY?

The LTO6 drive definition in Arkeia as sell as the LTO5 is set to use a variable block size, but different buffer size.

The LTO6 uses a buffer size of 524288 in which some HH LTO6 drives do not support.