Joe,

If they are inserting records using an ascending key sequence then you will
never get the FSPC right. You will just fill the CI and split it, or fill
the CA and then split it. FSPC will not help anything. Best thing to do is
make the CISZ(32768) to reduce the CI split frequency, and make the CA
splits go as fast as possible.

If CICS can be changed to use SIS then the CI and CA split counters don't
really mean anything. You just split at the insert point and go to a new CI
or CA.

Ron

> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
> Behalf Of Joe jeffries
> Sent: Monday, January 28, 2008 12:02 PM
> To: [email protected]
> Subject: [IBM-MAIN] VSAM Freespace - If no initial load???????
> 
> Hi Folks,
> 
> I've used VSAM for years and have a pretty good understanding of the
> way
> the CISZ and buffering need to be adjusted depending on the method used
> to
> access the file.
> 
> Every file I've had to play with has always had an initial load so
> enforcing
> FSPC hasn't been a problem.  I'm now working with an application that
> doesn't
> appear to do an initial load. These are Journal files that are being
> used by an
> application within a CICS region. As I'm not a CICS guy, I'm told that
> these
> files are dynamically allocated and, as they are using a ring-of-files
> concept,
> don't ever get an initial load. Each Journal file will be active for 1
> day, then
> remain as archive until day 6 when they are emptied and rotated round
> for use
> on day 7.
> 
> If this is the case (please jump in CICS guys if I've been steered down
> a cul-
> de-sac) how is it possible to enforce freespace? The file in question
> is writing
> 5000 records with 2000 of these records as inserts. Without FSPC, I
> can't
> control the CI/CA splits as well as I'd like.
> 
> As always, pointing me towards the right manual will be just as helpful
> as a
> concise answer........
> 
> Thanks for any/all help,
> 
> JJ
> 
> ----------------------------------------------------------------------
> For IBM-MAIN subscribe / signoff / archive access instructions,
> send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
> Search the archives at http://bama.ua.edu/archives/ibm-main.html

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html

Reply via email to