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Expand the length of KSDS file without affecting processing

 
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kumarneeraj_81
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Joined: 23 Jun 2005
Posts: 1
Location: bangalore

PostPosted: Tue Feb 27, 2007 5:12 pm    Post subject: Expand the length of KSDS file without affecting processing
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Hi,

I want to expand the length of the KSDS file. Currently the logical length of the file is 500. I am unable to make the decision that what is the size i can expand without affecting the processing and efficiency.

The inofrmation about the file is mentioned below.

Data - Control Area Information:
Physical record size: 4096
Records per track: 12
Tracks per CA: 2
Retrieved records: 191770865
Max record number 0
Number CA splits: 3


Control Interval Information:
Size-data: 4096 Index: 7680
Number CIs/CA: 192
Number free CIs/CA: 19
Percent free CIs/CA: 10
Percent free bytes/CI: 20
Number CI splits: 1348

Please let me know if any information required. Please let me know the way to find out the perfect record length (for expansion) without affecting program processing/efficiency.
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William Thompson

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Joined: 18 Nov 2006
Posts: 3158
Location: Tucson AZ

PostPosted: Tue Feb 27, 2007 5:31 pm    Post subject: Re: Expansion of KSDS File
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kumarneeraj_81 wrote:
I want to expand the length of the KSDS file. Currently the logical length of the file is 500. I am unable to make the decision that what is the size i can expand without affecting the processing and efficiency.

Please let me know if any information required. Please let me know the way to find out the perfect record length (for expansion) without affecting program processing/efficiency.
Expand the record to include the data you need to include. Sometimes a little filler can be handy in the future, that's your call. Just expand and don't worry about "program processing/efficiency".
Quote:
The information about the file is mentioned below.

Data - Control Area Information:
Physical record size: 4096
Records per track: 12
Tracks per CA: 2
Retrieved records: 191770865
Max record number 0
Number CA splits: 3


Control Interval Information:
Size-data: 4096 Index: 7680
Number CIs/CA: 192
Number free CIs/CA: 19
Percent free CIs/CA: 10
Percent free bytes/CI: 20
Number CI splits: 1348
Since you are going to backup, delete, define and restore to expand the record, the delete/define would be a good time to look into the data and index CA/CI sizes and freespace.
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