Exabyte EXB-220, ADSM/TSM and AIX

I (might) have a problem with an Exabyte EXB-220 tape library connected
to an RS/6000 running AIX 4.3.3 and TSM 3.7.

I've had no problem attaching the library, after the machine has booted,
the Mammoth drives show up in device configuration:

> lscfg -v | grep 30-58
  scsi1        30-58             Wide SCSI I/O Controller
  rmt1         30-58-00-1,0      Other SCSI Tape Drive
  rmt2         30-58-00-2,0      Other SCSI Tape Drive

I am as well able to define the drives and the library to TSM:

> mkdev -c library -t 'ADSM-SCSI-LB' -s 'scsi' -p 'scsi1' -w '0,0'
> mkdev -c adsmtape -t 'ADSM-SCSI-MT' -s 'scsi' -p 'scsi1' -w '1,0' -a 
> block_size='0'
> mkdev -c adsmtape -t 'ADSM-SCSI-MT' -s 'scsi' -p 'scsi1' -w '2,0' -a 
> block_size='0'

Now, the TSM devices show up in the device configuration, too:

> lscfg -v | grep 30-58
  scsi1        30-58             Wide SCSI I/O Controller
  lb0          30-58-00-0,0      Tivoli Storage Manager Library
  rmt1         30-58-00-1,0      Other SCSI Tape Drive
  mt0          30-58-00-1,0      Tivoli Storage Manager Tape Drive
  rmt2         30-58-00-2,0      Other SCSI Tape Drive
  mt1          30-58-00-2,0      Tivoli Storage Manager Tape Drive

However, the Tivoli devices lb0, mt0 and mt1 are gone again, after a
reboot of the machine. I do not understand this, is this correct? When I
run cfgmgr manually, it reports

cfgmgr: 0514-621 WARNING: The following device packages are required for
        device support but are not currently installed.
devices.scsi

which looks like if there are some device drivers missing. On the other
hand, tape operation seems to be correct from TSM's point of view. Any
insights from ADSM/TSM (on AIX) experts?

++Markus
______________________________________________________________________
Dr. Markus Zahn, Universität Augsburg, Rechenzentrum, D-86135 Augsburg
Tel./Fax: ...................................... (0821) 598-2004/-2028
World Wide Web: ....................... http://www.RZ.Uni-Augsburg.DE/