dds3 tape device definitions - what do they mean?

[Sonya_2]

What do the 3 different tape definitions mean? I can't find them. I think one is compressed mode etc....Thanks for your help.
/dev/rmt/0m
/dev/rmt/0mb
/dev/rmt/0mn

Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
tape 0 0/0/2/0.3.0 stape CLAIMED DEVICE HP C1537A
/dev/rmt/0m /dev/rmt/0mnb /dev/rmt/c2t3d0BESTn /dev/rmt/c2t3d0DDSb
/dev/rmt/0mb /dev/rmt/c2t3d0BEST /dev/rmt/c2t3d0BESTnb /dev/rmt/c2t3d0DDSn
/dev/rmt/0mn /dev/rmt/c2t3d0BESTb /dev/rmt/c2t3d0DDS /dev/rmt/c2t3d0DDSnb

[Mauro Gatti]

You can find good infos reading "man 7 mt".
There is a naming conventions section that explains all special files names.

For example final "n" means no rewind on close, "b" means Berkeley-style tape behavior and so on...

RGDS


Mauro