Trying to set up a tape library NEOs StorageLoader LTO7 and also old PowerVault 124T I am facing following problem and cannot find any helpful answer.
Using either Openindiana 151a8, Openindiana Hipster 2017.4 or current SmartOS none of them creates device for tape-changer LUN1 (to be used by mtx). Only tape-drive device (LUN0) is shown:
user@server1:~# cfgadm -al Ap_Id Type Receptacle Occupant Condition ... c3::rmt/1 tape connected configured unknown ...
Which maps to /dev/rmt/1 and is perfectly usable by mt tool. I have read a lot about using devfsadm -C -v and booting with reconfigure option but nothing solved situation.
How to get /dev/scsi/changer/... for mtx ?
BTW: Tape library is attached to LSI 9207-4i4e HBA controller and OS driver for this is mpt_sas, which seems to see LUN1 according to LSIUtil and boot screen output. /var/adm/messages does not show any useful info execpt a warning, that multipathing will be disabled due to invalid WWN of tape-changer.