Re: CHGPF time

[Luis Rodriguez <luisro58@xxxxxxxxx>]

Rob,

I seem to remember that you had some questions (don't know if they
were answered) about the way data was moved from/to the SSDs. Found a
nice IBM presentation about SSDs here:

http://tinyurl.com/yg64yxz

Regards,

Luis Rodriguez
IBM Certified Systems Expert — eServer i5 iSeries



On Mon, Jan 18, 2010 at 9:19 AM,  <rob@xxxxxxxxx> wrote:
> Again, the help will not be updated on 6.1, but will in 7.1.  If you run
> that on a file you will see that the unit will now be set to 255.  In
> fact, with the appropriate ptf's on 5.4.5 you run CHGPF UNIT(255) because
> they didn't even change the command to support *SSD.
>
> Remember, IBM finds it much easier to make programming changes, but
> promoting out help and what not to the myriad number of languages they
> support lags behind.  Hence command changes and whatnot are often snuck
> out in PTF's.  Help takes a new release.
>
> I've decompiled the command at 6.1.1.  Notice how they change *SSD into
> 255 before passing it on to the CPP?
> PARM       KWD(UNIT) +
>           TYPE(*INT2) +
>           DFT(*SAME) +
>           RANGE( +
>             1 +
>             255) +
>           SPCVAL( +
>             (*SAME -2) +
>             (*ANY 0) +
>             (*SSD 255)) +
>           EXPR(*YES) +
>           PROMPT('Preferred storage unit' 20)
>
>
> Rob Berendt
> --
> Group Dekko Services, LLC
> Dept 01.073
> Dock 108
> 6928N 400E
> Kendallville, IN 46755
> http://www.dekko.com
>
>
>
>
>
> From:   Andy Youens <andy@xxxxxxxxxxxxxx>
> To:     Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
> Date:   01/18/2010 07:26 AM
> Subject:        RE:  CHGPF time
> Sent by:        midrange-l-bounces@xxxxxxxxxxxx
>
>
>
> I get 'no longer supported' under 6.1 for that Rob
>
> This parameter is no longer supported.  It exists solely
> for compatibility with releases earlier than Version 3
> Release 6 Modification 0 of OS/400. For information on
> using auxiliary storage pools (ASPs), refer to the
> Recovering your system book, SC41-5304.
>
> Regards
> Andy Youens | Senior IBM Consultant | formaserve systems ltd
> ( 01908 609500 | 2 07770 380276 | http://www.formaserve.com
> ________________________________________
> From: rob@xxxxxxxxx [rob@xxxxxxxxx]
> Sent: 14 January 2010 13:48
> To: Midrange Systems Technical Discussion
> Subject: SSD:  CHGPF time
>
> When you execute
> CHGPF FILE(SCHEMA/TABLE) UNIT(*SSD)
> does it just flip a bit in the definition of the table and do the actual
> move in the background or are you locked out of the table until all
> sectors are moved?
>
>
> Rob Berendt
> --
> Group Dekko Services, LLC
> Dept 01.073
> Dock 108
> 6928N 400E
> Kendallville, IN 46755
> http://www.dekko.com
>
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