scsi hard disk not correctly showing up

Hi,

I got a (used) SCA hard disk and want to fit it my netra T1.
Once got over that old disk sledges are brittle as crystal, the 
connector is a bit hard and even the front panel becomes brittle, I 
inserted the disk. It shows up if I run

ok probe-scsi
Target 0
   Unit 0   Disk     SEAGATE ST336605LSUN36G 0638
Target 1
   Unit 0   Disk     IBM-SSG H01D073         RSQP

When I boot, however, it shows up partially:

sd0 at scsibus0 targ 0 lun 0: <SEAGATE, ST336605LSUN36G, 0638> 
serial.SEAGATE_ST336605LSUN36G_3FP1X0L900007304CSL3
sd0: 34732MB, 512 bytes/sector, 71132959 sectors
sd1 at scsibus2 targ 1 lun 0: <IBM-SSG, H01D073, RSQP> 
t10.HITACHI_HUS103073FL3800_V3VLHBWA

no size/sector information. As a consequence, I get no raw device cannot 
run disklabel on it.

# disklabel sd1
disklabel: /dev/rsd1c: Device not configured

Kind of expected.

Is the disk broken? incompatible? A size limit? or do I miss some kind 
of setup?
This is not a "sun" disk but came from some IBM system, but SCSI should 
be compatible and SCA should be self-configuring, with IDs automatically 
set depending on the drive bay position, shouldn't it? It is jumperless 
and has no configuration, as expected.

I hear the disk spinning up, calibrating heads and the LED goes of 
afterwards.

I'm inclined to think it is a lemon, not a working pull.

Riccardo