Hi Folks,

I need to do a small project on HP-UX, and I have an HP-9000 C110 system 
that I can use for this purpose.

Unfortunately the system's internal HD is only 2.2 GB, and I need it to 
be at least 12 GB for this task.  I looked up the number of the internal 
drive, and it's a 50 pin SCSI-2 SE (single ended) model.

I have an 18 GB, 68 pin, SCSI-3, Ultra 160 SE drive, and a 68 pin to 50 
pin cable adapter.  I was wondering if anyone knows whether there's a 
limitation that would keep this adapted drive from working properly in 
the C110.

I could just plug it in and see what happens, but I wanted to see if 
anyone knew whether this would work in advance.

Thanks for any pointers!

     -dreq

Derek Mark Edding wrote:
> Hi Folks,
> 
> I need to do a small project on HP-UX, and I have an HP-9000 C110 system 
> that I can use for this purpose.
> 
> Unfortunately the system's internal HD is only 2.2 GB, and I need it to 
> be at least 12 GB for this task.  I looked up the number of the internal 
> drive, and it's a 50 pin SCSI-2 SE (single ended) model.
> 
> I have an 18 GB, 68 pin, SCSI-3, Ultra 160 SE drive, and a 68 pin to 50 
> pin cable adapter.  I was wondering if anyone knows whether there's a 
> limitation that would keep this adapted drive from working properly in 
> the C110.
> 
> I could just plug it in and see what happens, but I wanted to see if 
> anyone knew whether this would work in advance.
> 
> Thanks for any pointers!
> 
>     -dreq
Derek,


Ultra SCSI-3 connecting to Ultra SCSI-2 is asking for trouble.

Why not go to eBay and look for a c3x00 model? Come with 2*18GB 
sometimes and HP-UX 11.xx installed.


Regards,


Jan Gerrit Kootstra

Jan Gerrit Kootstra schrieb:
> Derek Mark Edding wrote:
>> I need to do a small project on HP-UX, and I have an HP-9000 C110 
>> system that I can use for this purpose.

> 
> Ultra SCSI-3 connecting to Ultra SCSI-2 is asking for trouble.

Ultra-SCSI3 and Ultra-SCSI2 are compatible and interchangeable.
Every Ultra SCSI3 devices can fallback to Ultra SCSI2 (which is still 
40MB/s, enough for a machine like the C110)

But:
The C110 has 2 SCSI busses:
a 5MB/s SCSI-2 Single ended and
a 20MB/s Wide SCSI-2 *High Voltage Differential*

The bus for faster mass storage is the Wide SCSI diff.
You *cannot* use SE or LVD drives here. You'll need differential SCSI 
devices.

> Why not go to eBay and look for a c3x00 model? Come with 2*18GB 
> sometimes and HP-UX 11.xx installed.

And run circles around a C110...

-- 
Uli

Uli Link wrote:
> Ultra-SCSI3 and Ultra-SCSI2 are compatible and interchangeable.
> Every Ultra SCSI3 devices can fallback to Ultra SCSI2 (which is still 
> 40MB/s, enough for a machine like the C110)
> 
> But:
> The C110 has 2 SCSI busses:
> a 5MB/s SCSI-2 Single ended and
> a 20MB/s Wide SCSI-2 *High Voltage Differential*
> 
> The bus for faster mass storage is the Wide SCSI diff.
> You *cannot* use SE or LVD drives here. You'll need differential SCSI 
> devices.
> 
>> Why not go to eBay and look for a c3x00 model? Come with 2*18GB 
>> sometimes and HP-UX 11.xx installed.
> 
> 
> And run circles around a C110...

For the record, the 18 GB U160 drive worked great.  It is a Quantum (now 
Maxtor) Atlas V series.  I added two jumpers, one to force SE (it also 
supports LVD), and one to force narrow transfers.  I was at first 
worried that the drive has no internal termination, but this turned out 
not to be a problem.  HP-UX recognized it, formatted it, and it runs 
flawlessly.

I would not mind having a faster system, but the C110 was here already 
and is sufficient for the task.

Thanks for the pointers, Uli.

    -dreq

As I know, C110 has the  HVD scsi interface.

"Derek Mark Edding" <dreq@earthlink.net> wrote in message 
news:zOMMe.8645$Je.6284@newsread2.news.atl.earthlink.net...
> Hi Folks,
>
> I need to do a small project on HP-UX, and I have an HP-9000 C110 system 
> that I can use for this purpose.
>
> Unfortunately the system's internal HD is only 2.2 GB, and I need it to be 
> at least 12 GB for this task.  I looked up the number of the internal 
> drive, and it's a 50 pin SCSI-2 SE (single ended) model.
>
> I have an 18 GB, 68 pin, SCSI-3, Ultra 160 SE drive, and a 68 pin to 50 
> pin cable adapter.  I was wondering if anyone knows whether there's a 
> limitation that would keep this adapted drive from working properly in the 
> C110.
>
> I could just plug it in and see what happens, but I wanted to see if 
> anyone knew whether this would work in advance.
>
> Thanks for any pointers!
>
>     -dreq