• Subject: RE: Commitment control limitation
  • From: "Al Barsa, Jr." <barsa2@xxxxxxx>
  • Date: Fri, 26 Jan 2001 10:39:23 -0500

At 08:24 AM 1/26/01 -0600, you wrote:

Your stressing my memory.

When Commitment Control was introduced on the S/38, the maximum number of 
uncommitted entries was 1024.  One of the few substantiative changes on 
AS/400 V1R1M0 was that this number was increased to 4K.

The number went up from release to release, and my recollection in the V4 
time space is that it was 32K.  At whatever limit IBM set, there were 
always customers that hit it, and that's why it was effectively made 
unlimited in V4R4.  Every uncommitted entry requires a record lock, and 
record locks consume memory.

Al


>         Al replied,
>
>         What release are you on?
>            V4R2  however a lot of our clients are on V4R4
>
>         Commitment control has always had a limitation as to the number of
>pending
>         commits, but as of V4R4 the limitation is 4 million, although the
>         documentation states that you may not be able to purchase enough
>memory to
>         support this number.
>
>         Al
>
>         Is this limitation a number of records or is it a limitation on
>memory size?  From your response I take it that it is memory.
>         If that is the case each machine will vary, is this true?
>         Al, any direction where I can find more info about these
>restrictions.
>
>         TIA
>         Ron
>
>
>
>
>
>         +--------------------------------------------------+
>         | Please do not send private mail to this address. |
>         | Private mail should go to barsa@ibm.net.         |
>         +--------------------------------------------------+
>
>         Al Barsa, Jr. - Account for Midrange-L
>         Barsa Consulting Group, LLC.
>         400 > 390
>
>         Phone:          914-251-1234
>         Fax:            914-251-9406
>         http://www.barsaconsulting.com
>         http://www.taatool.com
>
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+--------------------------------------------------+
| Please do not send private mail to this address. |
| Private mail should go to barsa@ibm.net.         |
+--------------------------------------------------+

Al Barsa, Jr. - Account for Midrange-L
Barsa Consulting Group, LLC.    
400 > 390

Phone:          914-251-1234
Fax:            914-251-9406
http://www.barsaconsulting.com
http://www.taatool.com

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