Solved

How to move External Serial Fax/Modem from IBM Concentrator to Serial Port on back of server

Posted on 2010-11-11
7
609 Views
Last Modified: 2013-11-17
We have an IBM 520 p5 Server with AIX 5.3.

I am looking for a way to move our External serial fax/modem from our Concentrator (tty3), to one of the serial ports on the back of the server, trying to eliminate the Concentrator all together.  The Fax/Modem will only be used for outgoing faxes (no incoming calls).

I want to move the fax/modem to port T2 (T1 has a dumb terminal attached), currently the T2 port is assigned to the Parent Adapter 'vsa2', and looks like it is setup for a dumb terminal also.

Is this even possible?  If so, what are the steps I need to take to move the fax/modem from the concentrator port to the T2 serial port on the back of the server?
0
Comment
Question by:eagle-22
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 2
7 Comments
 
LVL 62

Expert Comment

by:gheist
ID: 34125491
disable tty2 in inittab
what fax software you are using?
0
 
LVL 3

Author Comment

by:eagle-22
ID: 34136972
If I diable vty2 (on Parent Adapter vsa2), then can it be setup as a rs232 tty at this location?
We are using Faximum software under AIX.

Would this change require a restart of the server?

I am getting confusing information about the ability to do this, some say yes, others say no.
From a different source:

Hi
Hmm AFAIK you cannot use the internal serial ports of a pSeries server caused they are already in use by the hypervisor firmware running as part of the pSeries architecture. In fact, when designing old implementations of HACMP clusters where a choice for hearbeat networks was to use serial ports you need to buy two serial adapters to create such network.
If you have free PCI slots you can still use serial adapters to move your modem facilities to that new adapter.
HTH
0
 
LVL 68

Expert Comment

by:woolmilkporc
ID: 34137107
vsa2 and vty2 are both virtual devices coming from the hypervisor, as correctly stated above.

They're not related to any hardware.

vsax is a "LPAR Virtual Serial Adapter"
and vtyx is its terminal device.

wmp
0
Free eBook: Backup on AWS

Everything you need to know about backup and disaster recovery with AWS, for FREE!

 
LVL 3

Author Comment

by:eagle-22
ID: 34139216
So, it is still unclear to me if this can be done or not.
Or if the only way to do this is to add a PCI serial card and then move it to that.
Or if I need to provide more information?
0
 
LVL 68

Accepted Solution

by:
woolmilkporc earned 500 total points
ID: 34139998
You can't use these ports. They're reserved for providing access to the Hypervisor (ASMI) or Service Processor.

What I wanted to tell you above is that vsax and vtyx are not related to the hardware serial ports! They're virtual!

0
 
LVL 3

Author Comment

by:eagle-22
ID: 34140532
From what I have read it does look like these ports are not available if your system is managed by an HMC.  But I don't think our is.

From the IBM Manual:
2.6.10 Internal system ports
The system ports S1 and S2, at the rear of the system, are only available if the system is not
managed using a Hardware Management Console (HMC). In this case, the S1 and S2 ports
support the attachment of serial console and modem.
(page 36   IBM System p5 520 and 520Q Technical Overview and Introduction)

We do have a serial console (IBM 3151) connected to the T1 port (/dev/vty1).  So according to the manual, shouldn't we be able to connect a modem to the other port?
0
 
LVL 3

Author Comment

by:eagle-22
ID: 34147034
I found a little more information on the subject at:
http://www.redbooks.ibm.com/abstracts/tips0480.html

it contains a command to check if an HMC is connected.
0

Featured Post

Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Don’t let your business fall victim to the coming apocalypse – use our Survival Guide for the Fax Apocalypse to identify the risks and signs of zombie fax activities at your business.
Not everyone has adapted to a rapid advancement in technology; there are people who are reluctant or afraid to delve into this brave new world of IT. If you have a friend or a family member who suffers from the so-called technophobia, here is how yo…
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.

690 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question