FWIW, here is a snippet of the SMS ACS DC code that we were using for zEDC.
/* DEFINE extra data sets to receive zEDC compression */
/*--------------------------------------------------------------------*/
FILTLIST COMP_DSN INCLUDE(CCM.CCM%%%%.FDR.**,
RMS.PROD.MSA.BKUP.**,
LOGR.IFASMF.**,
DB2%.ARCHLOG%.**)
- - - - - - - - - - - - - - - - - - 46 Line(s) not Displ
/* RULES FOR DISK zEDC HW data compression */
/*--------------------------------------------------------------------*/
WHEN (&DSN = &COMP_DSN) SET &DATACLAS='COMP'
WHEN (&DSTYPE = 'GDS' && &SIZE > 270MB)
SET &DATACLAS='COMP'
WHEN (&PGM = 'ADRDSSU' && &SIZE > 55MB)
SET &DATACLAS='COMP'
Sent with Proton Mail secure email.
On Tuesday, April 16th, 2024 at 3:30 PM, Jousma, David
<[email protected]> wrote:
> No Hogan here. We use IAM in a bunch of applications because it is
> significantly faster than VSAM (or was).
>
> Dave Jousma
> Vice President | Director, Technology Engineering
>
>
>
>
>
> From: IBM Mainframe Discussion List [email protected] on behalf of
> rpinion865 [email protected]
>
> Date: Tuesday, April 16, 2024 at 3:27 PM
> To: [email protected] [email protected]
>
> Subject: Re: Anyone exploiting ZEDC?
> Curious, do you use IAM for Hogan applications? My previous life did, and the
> applications group was very satisfied with the IAM performance vs. native
> VSAM. However, we had to impress on them, that periodic reorgs were more
> necessary for IAM,
>
>
> Curious, do you use IAM for Hogan applications? My previous life did, and the
> applications group was very satisfied with the IAM performance vs. native
> VSAM. However, we had to impress on them, that periodic reorgs were more
> necessary for IAM, than under VSAM. And, we found out that ADRDSSU
> dump/restore of VSAM was what was being used to perform VSAM reorgs, as
> opposed to IDCAMS REPRO, DELETE,
>
> DEFINE, REPRO. Guess what, ADRDSSU sees an IAM dataset as extended format PS!
>
>
>
>
>
>
>
>
>
> Sent with Proton Mail secure email.
>
>
>
>
> On Tuesday, April 16th, 2024 at 3:02 PM, Jousma, David
> [email protected] wrote:
>
>
>
>
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