Hello Tom,
I believe that I am correct in stating the following:
The configuration statements in the SYSTEM CONFIG file are used basically
during z/VM IPL to create your system's configuration. A subsequent activation
of a new IODF/IOCDS is not really associated to the SYSTEM CONFIG statements.
Since you defined the real device numbers of 4xxx to only be offline at IPL
(and IPL is the operative word here), upon activation of a new IOCDS/IODF,
these devices are available to the system during device discovery and as a
result become online. The best way to avoid this is to define the 4xxx devices
as 'Not Accepted' causing z/VM not to pay any attention to these devices during
IPL and activation processing.
The SYSTEM CONFIG statements are used to create your working configuration for
the current IPL of z/VM. Subsequent dynamic activations of new configurations
do not necessarily adhere to the SYSTEM CONFIG statements with the 'Not
Accepted' category being the exception.
Hope this helps.
Raymond E. Noal
EMC²
where information lives
Phone: (508) 249-4076
Ext: 44076
From: The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] On Behalf
Of Tom Huegel
Sent: Friday, June 10, 2011 9:18 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Again IOCDS and dynamic activation.
I am having a problem with dynamic activation of the IOCDS by z/OS.
This is what is in my SYS CONFIG file.
Devices ,
Offline_at_IPL 0000-FFFF,
Sensed 0000-FFFF,
NotAccepted CC00-CDFF,
Online_at_IPL 0020-002F,
00B0-00B2,
D509-D50F,
D52B-D52F
and in my AUTOLOG1 profile.
ADDRESS COMMAND CP SET DEVICES NOTACCEPTED '1000-FFFF'
ADDRESS COMMAND CP SET NEW_DEVICES INIT OFF
After IPL everything is fine, the devices I want ONLINE are online and those I
want OFFLINE are offline.
But when a new IOCDS is activated the group of devices I am trying to keep
offline 4xxx become ONLINE..
The devices added by the new IOCDS (E0xx) are OFFLINE.
Am I missing something? Is this the way it is supposed to work? Is there a way
to prevent this from happening?
Thanks
