On 10/5/2011 7:15 AM, MONTERO ROMERO, ENRIQUE ELOI wrote:
is it possible to define device addresses over the 4 dev address?
I mean, the limit address of a device is FFFF, so what happens when need to
define more devices?, can be defined 5 chars address devices (FFFFF) ?
Device numbers are already five digits long if you include the subchannel set
ID. Many IOS messages format a five digit device number. For example:
<IBM Documentation>
IOS126I DEVICE sdddd IS KEPT OFFLINE. text
Explanation: During IPL, it was determined that a device was kept offline
for a specific reason. The reason is described by the message text.
In the message text:
sdddd The subchannel set ID and device number of the device kept
offline.
text Describes the reason the device is kept offline and is as
follows:
A PRIMARY OF A SPECIAL PAIR IS ONLY EXPECTED IN SUBCHANNEL SET y
Where 'y' is the subchannel set selected for IPL.
During device initialization, this device was found to be
operating in Primary mode as part of a Special pair and was
found in a subchannel set that was not selected for IPL.
Devices operating in Primary mode are only expected in the
subchannel set that was selected for IPL. See z/OS HCD
Planning for information on Special pairs.
During IPL, the system determines which subchannel set to
use for devices that are accessible from multiple subchannel
sets based on:
o The SCHSET parameter specified in the LOADxx parmlib
member. See z/OS MVS Initialization and Tuning
Reference.
o The operator's response to IEA111D if it was issued. See
z/OS MVS System Messages, Vol 6 (GOS-IEA).
</IBM Documentation>
--
Edward E Jaffe
Phoenix Software International, Inc
831 Parkview Drive North
El Segundo, CA 90245
310-338-0400 x318
edja...@phoenixsoftware.com
http://www.phoenixsoftware.com/
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