RE: PF data space management

[Mike Cunningham <mcunning@xxxxxxx>]

Please do a DSPFD and look at this section...

Member size                                   SIZE
  Initial number of records . . . . . . . . :                 10000
  Increment number of records . . . . . . . :             1000
  Maximum number of increments  . . . . . . :                3
Record capacity . . . . . . . . . . . . . . :                 13000
Allocate storage  . . . . . . . . . . . . . : ALLOCATE   *NO
Contiguous storage  . . . . . . . . . . . . : CONTIG     *NO

Does this file was ALLOCATE *YES.  If it does you told the system to create the file and to preallocate the space needed to hold the number of records under Record capacity. Even with 0 records the file will be the size as if it contained all the records. Change that do a *NO

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Matt Laskosky
Sent: Wednesday, March 26, 2008 8:10 AM
To: midrange-l@xxxxxxxxxxxx
Subject: PF data space management

I have a PF with zero records and a size of 26,353,664; WOW zero records
and a file size of 26MB.

The physical file description attributes the file size to the "Data
Space Size", see below.
Data Space Activity Statistics  . . . . . :

   Data space size in bytes  . . . . . . . :           26353664

   Physical file open accesses . . . . . . :
12
   Physical file close accesses  . . . . . :
12
   Write operations  . . . . . . . . . . . :
1,673
   Update operations . . . . . . . . . . . :

   Delete operations . . . . . . . . . . . :

   Logical Reads . . . . . . . . . . . . . :

   Physical Reads  . . . . . . . . . . . . :

   Clear operations  . . . . . . . . . . . :
1
   Data space copy operations  . . . . . . :

   Reorganize operations . . . . . . . . . :

   Access paths builds/rebuilds  . . . . . :

   Records rejected by key selection . . . :

   Records rejected by non-key selection . :

   Records rejected by group-by selection. :


How can I manage the data space size?

Thanks.

Matt Laskosky, Consultant
Dynamic Information Services Corporation
IBM Certified Specialist
Ph#:     734-476-5200
Email:   Matt@xxxxxxxxxxx

--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.