Re: Virtual Device spontaneous combustion!

QAUTOCFG relates to directly attached devices only (such as twinax
workstations and printers, tape devices etc.)
QAUTORMT as name suggests, apply to remote devices configuration - such as
workstations attached to remote control units.
Auto create controllers setting controls only APPN operation - creating
APPN/APPC controllers for an incoming request on a LAN.
What you see is the documented behaviour of QAUTOVRT. System will not
create NEW devices to go beyond QAUTOVRT. Otherwise, system will not delete
virtual devices and generally will not try to decrease their number down to
QAUTOVRT setting.
If you want to have finer control over virtual device allocation/creation,
there are two mechanisms for this:
- named device support (sessions reference pre-created devices)
- TELNET exit program (described in TCP/IP Configuration and Reference),
which can decide, which device can be used for a specific session.

Best regards
    Alexey Pytel



John Earl <johnearl@toolnet.com> on 04/11/99 03:57:49 PM

Please respond to MIDRANGE-L@midrange.com

To:   "MIDRANGE-L@midrange.com" <MIDRANGE-L@midrange.com>
cc:    (bcc: Alexei Pytel/Rochester/IBM)
Subject:  Virtual Device spontaneous combustion!





We keep getting bitten by an autoconfig type of a problem
with our virtual devices, but I can't figure out why it's
happening.

QAUTOCFG is set to '0' (off)
QAUTORMT is set to '0' (off) ... (but this _should_ be
irrelevant)
QAUTOVRT is set to 0
And the TCPIP interface line description is set to Auto
Creat Controllers(*NO)

Yet, on whenever someone connects to an existing virtual
device using a different device type (a 3477 for example
trying to connect to an existing 3197 device description),
the QTGTTELNET job will delete and recreate the device to
suit fir the new device type.

This isn't what we want to happen.  We want the system to
keep searching for a valid device and if it doesn't find a
match, then refuse connection.   Unfortunately, I can't seem
to get the system to stop authomatically re-creating virtual
devices.

(OS=V4R3)

Help!

jte

--
John Earl   johnearl@toolnet.com

PowerTech Toolworks  206-575-0711
PowerLock Network Security www.toolnet.com
The 400 School   www.400school.com
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