Query:Coding DCB=*.SYSUT1 for SYSUT2,where SYSUT2 is DASD.

dick scherrer · Posted: Tue Jul 22, 2008 7:06 pm

Hello,

FWIW, Several of the sites i've supported (using both DFSORT and Syncsort) invoke the sort product for IEBGENER executions.

If the process is other than a simple copy operation, the sort product then invokes IEBGENER.

UmeySan · Posted: Tue Jul 22, 2008 8:42 pm

Hi Gerry !

We're also using IEBGENER with SYSIN DD * and ICEGENER is excecuting in background. It depends on installation.

gcicchet · Posted: Wed Jul 23, 2008 4:28 am

Hi,

in my shop it assumes that SYSIN DD * will have IEBGENER parameters hence IEBGENER is invoked.

If you have a SYSIN DD DSN= what will it invoke ?

Gerry

Anuj Dhawan · Posted: Wed Jul 23, 2008 11:04 am

Hi,

Below are the statistics of SYSPRINT with different SYSIN parameters, does that convey something meaningful ? My shop uses SyncSort.

1. //SYSIN DD *

gcicchet · Posted: Wed Jul 23, 2008 11:15 am

Hi Anuj,

the SYSIN DD * is using IEBGENER and SYSIN DD DUMMY is using the SYNCSORT program.

When SYSIN DD DUMMY is coded it knows that it's a straight copy so it uses the SYNCSORT program which is more efficient than IEBGENER.

When SYSIN DD * is coded it thinks you may be passing IEBGENER SYSIN parameters so IEBGENER is used.

Gerry

Anuj Dhawan · Posted: Wed Jul 23, 2008 11:31 am

Hi Gerry,

It means my & your shops are following the same "rules" as far as this thread is concerned, let's wait what others have to say, till then I'll experiment a little more on BLKSIZE thing, thanks again.