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Will journaling help? I understand that journaling will recover the lost data during IPL.

Mark S. Waterbury wrote:

Hi, Charles:

Of course, it depends on the frequency of updating these "next numbers" and also, whether this is done in interactive jobs, or in batch, etc., and this must be weighed against the additional cost of recovery when they have to deal with and "clean up" these "duplicate" records, as is the case now, after a failure has occurred. (Like most things to do with "performance", there are always "trade-offs".)

Note that I did not suggest changing FRCRATIO for ALL files, but only for this "next number" master file.

This is exactly why IBM added support for FRCRATIO.

Regards,

Mark S. Waterbury

> Wilt, Charles wrote:

Note that changing FRCRATIO will impact performance negatively.

It's not usually the "right" answer.

Charles

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Lim Hock-Chai
Sent: Monday, October 29, 2007 5:24 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: lose data during system crash

Thanks Scott, that explain the cause of problem. I didn't know that there are two layers of memory involved.


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Scott Klement
Sent: Monday, October 29, 2007 4:20 PM
To: RPG programming on the AS400 / iSeries
Subject: Re: lose data during system crash

Blocking controls how often RPG sends the records from it's memory to the database's memory.

FRCRATIO controls how often the database software writes it's memory to disk.

Lim Hock-Chai wrote:

Hhmmm. Reading the help text on the command, I guess that is the problem. The file has FRCRATIO(*NONE). Here is the part that I'm confused about. In RPG, data blocking(buffering) should
only happen
if file is opened with output only. This RPG program is
opening this
file with UPDATE only. Did I missing something?

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