November 2003
Intermediate to advanced
212 pages
6h 37m
English
book
S/390 PartnerWorld for Developers, ITSO/EFS Project EFS Systems on a Linux Base: Additional Topics
by Bill Ogden, Michael Ryan
Content preview from S/390 PartnerWorld for Developers, ITSO/EFS Project EFS Systems on a Linux Base: Additional Topics
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Chapter 8. z/OS base sysplex on z/VM 109
Note that we dedicated both the FLEX-ES emulated OSA-1 used for TCP/IP (0E00, 0E01)
and the FLEX-ES
osasna device used for the sysplex SNA-over-Ethernet connection (0E60):
*
*E00/E01 =FLEX-ES EMULATED OSA-1 FOR ZOS TCP/IP
*
DEDICATE 0E00 0E00
DEDICATE 0E01 0E01
*
*E60 =FLEX-EX EMULATED OSASNA FOR SNA OVER ETHERNET
*
DEDICATE 0E60 0E60
8.5.1 Working allegiance
Because we were sharing DASD between VM guests, we needed to set working allegiance
(WRKALLEG) on for any volumes that contained any type of sysplex couple data set
. This
setting guarantees that if multiple virtual machines start an operation to one device, that
machine’s channel program runs to completion or terminates before the other machine’s is
allowed ...
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