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anilkumar_mca · Beginner Joined: 26 Feb 2005 Posts: 5 Topics: 5

Hi,

Can anybody assist me in coding the BUFSP parameter for a KSDS file in a job. Is there any way to find the allocation of optimum number of bytes to BUFSP. Also, let me know if there are any standards for coding BUFNI and BUFND parameters.

I need to code the BUFNI, BUFND and BUFSP parameters for a KSDS file which is on 3390 devise type. The attributes of the are as follows.

Average record size: 369
Maximum record size: 370
KSDS key length: 27
no.of records in the file : 2500 (approximately)
Data C/I size : 24576
Index C/I size : 1024

what are the optimum buffer values for above 3 parameters to speed up the accessing of the records.

kolusu · Posted: Thu Jul 07, 2005 6:10 am Post subject:

anilkumar_mca,

Check this link which discusses about Optimizing VSAM Performance and apy attention to section 2.5.5

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/DGT1D405/2.5?DT=19990106110554

Hope this helps...

Cheers

kolusu
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Kolusu
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