RE: PF/LF vs PF38/LF38

Why not change the system defaults for CRTPF.
We do this for several commands.
First we copy the original command to a library we created in front of QSYS.

CHGCMDDFT CMD(SYSCHG/crtpf) NEWDFT('size(*nomax *n *n)')
CHGCMDDFT CMD(SYSCHG/CRTPF) NEWDFT('REUSEDLT(*yes)')

Paul



-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of smith5646midrange@xxxxxxxxx
Sent: Tuesday, September 03, 2019 10:54 AM
To: 'Midrange Systems Technical Discussion' <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: PF/LF vs PF38/LF38

The default compile options is the main reason that I want to change these.
The company changed the default for MAXMBRS on the PF and LF commands to *NOMAX (this is an IP shop) but not the PF38 and LF38 commands (it is still
1) and it has bit me a few times.

The document you included is counting the PF38 files but no idea why. Maybe it was just an example value to show that you could pull.

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Rob Berendt
Sent: Tuesday, September 3, 2019 10:46 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: PF/LF vs PF38/LF38

IDK about any "weirdness". Some cursory searching shows a few things.

Pf-src vs pf38-src generally works better in RDi searches but there are work arounds.
Default compile options change between pf38-src and pf-src.

Now, when you are talking about non source files...
There is a performance document which seems to single out pf-38 but doesn't say why. (Search the document for 38.) I wonder if it has anything to do with its later recommendation to change to bigger page size on index?
https://www.tug.ca/MoMHandouts/2014-03-19/DB2%20for%20i%20Utilizing%20more%2
0efficiently.pdf

Rob Berendt
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Subject: PF/LF vs PF38/LF38

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We have some files defined as PF38 and LF38. Is there anything I need to know about or beware of if I change them to PFs and LFs? I know there is weirdness about a CLP38 but not sure about the PF38 and LF38.

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