Hi managers,
I am trying to connect Yamaha CRW4260t CD recorder (with 1.0j firmware)
to DPW 500au running vanilla DU 4.0D. The DPW got two SCSI adapters:
KZPBA-CA from Digital and physically identical QLA1040 from Qlogic
(both are ultra wide single-ended). KZPBA-CA has two hard disks connected
to it; QLA1040 doesn't have any devices on it.
The 4260, which is narrow SCSI-2, connectes to either controller (in
the KZPBA case, I had to force termination of the upper eight bits
instead of the full-width termination from the PROM console; QLA1040
works fine using default). The controller it is connected to makes
no difference later on. The drive is visible from the SRM console
and is correctly identified as "YAMAHA CRW4260 1.0j" by
'sh dev'. The DU boots fine with 4260 attached, which is recognized
by the kernel driver too.
Now the trouble begins: any attempt to access the drive results in
immediate kernel panic. This includes mounting an ISO9660 CD by
'mount -t cdfs etc..', trying to get to the status pages with scu,
and doing SCSI device inquiry from cdrecord. The panic also FUBARs
the /usr file system, so that I have to run /advfs/sbin/verify after
each round. This makes trying different configurations a bit trying...
Forcing the SCSI controller into fast mode (instead of ultra), setting
the default block size on the drive to either 512 or 2048 bytes, and
placing it on the SCSI controller of its own does not seem to make
any difference.
If these symptoms seem familiar to anybody or if anybody here
has any experience (good or bad) getting CRW4260 to work with
Digital Unix, I'll be glad to hear about it...
Regards,
/Serge.P
Received on Mon Nov 09 1998 - 17:50:57 NZDT