On 07/17/2013 04:26 AM, Alex Wang wrote: > Hey, there. > > I'm curious about is it possible to open about 50 PCOMM sessions on one PC? > > Because I just want to test how many TSO user IDs which could logon the > system at the same time. > So I started PCOMM sessions and logon them using different TSO user ID one by > one. The maximum number of sessions is 25. Because the PCOMM told me 'no more > sessions could be started' until I have had 25. > > Is there any one who did such test before? It seems we couldn't start as many > sessions as we want on one PC. :-) > > Note: > 1. This is the default definition in our SYS1.PARMLIB(IEASYSXX) > MAXUSER=500 > But one of the SP told me the system is running as a z/VM guest machine ID > and the allocated resources is limited. So she afraid that it could not > afford 50+ people on the system at the same time. > 2. I'm using PCOMM Version 5.7 for windows and the OS i'm using is Win7. > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > MAXUSER is for all address spaces in the system. The specific max number of these address spaces that TSO can use is further limited by USERMAX value in PARMLIB(TSOKEY00), and the way the VTAM TSO application node is defined to VTAM must also allow for enough distinct session names to support the TSO USERMAX, or VTAM will become the limiting factor. Of course if on a machine with limited resources, real memory, page dataset sizes, CPU could all impose their own limits, or the logon might be allowed but response could just go to the dogs. A logged-on TSO session that isn't doing anything obviously requires much less resource than an active user.
I can believe that PCOMM might have licensing or design restrictions that impose session limits unless you pay more. You could either try using multiple workstations, or look for some alternative TN3270 application. If you have access to a Linux workstation, try free open-software X3270 for TN3270 support -- definitely no licensing limits on number of sessions there. For that matter I think you can even run X3270 under Windows under the cygwin UNIX environment, although it's been a long time since I tried it. I have recently used cyqwin under Windows 7 systems, but not for X3270. -- Joel C. Ewing, Bentonville, AR [email protected] ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
