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TB076 - SNAUTIL PROGRAM & VSE/SP
 
                   JDS MICROPROCESSING TECHNICAL BULLETIN
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Date written:  04/16/91                    Submitted by: Paul McGinnis
     Sequence:  1 OF 1                            FileID: TB076 BULLETIN
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                          SNAUTIL PROGRAM & VSE/SP
                          ------------------------

VSE/SP users may experience difficulty running SNAUTIL if their VSE/SP
system is genned to run in virtual mode.

SNAUTIL uses four channel commands that a real IBM 3791L controller
does not. As a result, VSE/SP will not translate the data addresses
associated with the Channel Command Words (CCWs).

One solution is genning an unsupported device for HYDRA SNA to
use when SNAUTIL is run. An unsupported device requires CCW's in real
storage. This requirement specifies SNAUTIL must be run in a partition
with sufficient real storage. SNAUTIL requires at least 176K of real
storage.

*** $IPL370 PROC sample gen showing real channel address of HYDRA SNA
   (X'3C0') and unsupported device address for SNAUTIL (X'3C7') ***

ADD 3C0,3791L                      3270 SNA TERMINAL NODE
ADD 3C7,UNSP                       3C7 UNSUPPORTED DEVICE FOR SNAUTIL


*** JCL example showing SNAUTIL "SAVE" setup  on a system with
   BG as a partition with 200K of real storage. Note: The card that
   reads "* CNTRL FILE GOES HERE *" should be replaced by the SNAUTIL
   control file SNACNTRL.D  as provided on the SNAUTIL tape. ***

* $$ JOB JNM=SAVEIT,DISP=D,CLASS=0
* $$ LST CLASS=V,DISP=D
* $$ PUN CLASS=V,DISP=D
// JOB SAVEIT
* JOB TO SAVE HYDRA-SNA CONFIG
// ASSGN SYS001,3C7
// EXEC SNAUTIL,REAL,SIZE=192K
LOADCTL
* CNTRL FILE GOES HERE *
SAVE
/*
/&
* $$ EOJ