Sorry I omitted some details from my previous message. I have
already all the solution in place working through a standard OSA
adapter. The solution is based basically on two components: the
pr3287 program and another program that receives the data stream
from a pipe connected to the output of the pr3287. The connection
with the OS/390 is through multiple LUs (one LU for each pr3287
process).
Now in order to increase the bandwith I would like activate an
OSA Express or CTC connection.  The one with the lower impact on
the CPUs for this situation.


Franco Fiorese
EDS

> You might have bigger issues than your network path.  Unless
you have
> something on Linux that understands the 3270 printer
datastreams, the
> data will go nowhere.  OS/390 has to have an LU to send it to.
>
> You should be able to use FTP or LPR right from the JES spool
to send
> the data to Linux.
>
> On Tuesday 17 December 2002 02:49 pm, you wrote:
>> Hi all,
>> I have a question regarding the best approach for transfer 3287
>> printer data from VTAM, from a OS/390 partition, to a VM/Linux
>> partition (through 3270 LU sessions of course). The 3287 data
>> (printer spool) to be moved can be up to 50 MB.
>> The solution should consider the fastest speed with the lowest
>> usage of CPU cycles.
>> I have considered the standard two approaches: the CTC
connection and
>> the OSA Express connection between VM/Linux and OS/390.
>> For what I know CTC is fast but also it should have more impact
>> on the CPU usage, due to interrupts instead of the OSA Express
>> (that should use QDIO/DMA based data transfer). Any suggestion?
>
> --
> Rich Smrcina
> Sytek Services, Inc.
> Milwaukee, WI
> [EMAIL PROTECTED]
> [EMAIL PROTECTED]
>
> Catch the WAVV!  Stay for Requirements and the Free for All!
> Update your S/390 skills in 4 days for a very reasonable price.
> WAVV 2003 in Winston-Salem, NC.
> April 25-29, 2003
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