LVD SCSI devices on a K Class system

[Alastair Donaldson]

I have a K Class system running HP-UX 11.0 64bit with the September 2003 HWE Patch bundle installed.

I have connected an LVD SCSI device to an HP-PB SE SCSI card. Part # 28655-60001. The system can see the tape drive and assignes device files to the drive but when we try to do a tar command using any of the device files it fails.

I have connected the tape drive to an N Class system with an A5150A LVD card and the drive works fine. I have also connected it to a B1000 workstation on the SE port and it works fine.

Does anyone know if the 28655-60001 has any known problems with LVD devices or are there any patches that may help.

The device is an Adic FastStor 2 Super DLT. I have also tried a Quantum DLT8000 with the same results.

[Bharat Katkar]

Hi,
What does it show in

# ioscan -fnC tape

It should sapcify the S/w State as CLAIMED. Also check whether it is loading the relevant driver (stape) in the Driver field.

Regards,

[Alastair Donaldson]

Everything appears to be OK as far as the ioscan goes. Below is the output from an
ioscan -funC tape command.

tape 1 10/4/16.5.0 tape2 CLAIMED DEVICE QUANTUM SDLT320
/dev/diag/rmt/c2t5d0 /dev/rmt/c2t5d0BEST
/dev/rmt/1m /dev/rmt/c2t5d0BESTb
/dev/rmt/1mb /dev/rmt/c2t5d0BESTn
/dev/rmt/1mn /dev/rmt/c2t5d0BESTnb
/dev/rmt/1mnb

[Ravi_8]

Hi,

did u installed QPK bundle also? if not install QPK bundle. and post the result again

[Rita C Workman]

DLT8000 will not run on an HP-PB card. It will run on HSC or PCI bus.

It is quite possible that this Adic FastStor 2 Super DLT falls into the same category.

Rgrds,
Rita

[A. Clay Stephenson]

Your best bet is to use an HSC HVD/FWD SCSI card in conjunction with an LVD/HVD SCSI bus convertor. I have used one of those on a K-box and it worked fine. One source of such a convertor is Blackbox Corp and Parallan makes ones as well although I have not tried it.

Fast tape drives were never supported on the 28655 and even if you could get it to work the unit would be severely starved for data.

[Alastair Donaldson]

I've installed the QPK1100 Patch bundle from Sept 2003 but with the same results.

Looks like this card just won't work with LVD devices.

I believe that I will go with a Fibre / LVD SCSI Bridge and use them that way.

Thanks to everyone for your thoughts and ideas.

[Alastair Donaldson]

I agree with Clay that even if I can get it to work the SE bus speeds will be a real performance issue.