Portal | Manuals | References | Downloads | Info | Programs | JCLs | Master the Mainframes
IBM Mainframe Computers Forums Index
 
Register
 
IBM Mainframe Computers Forums Index Mainframe: Search IBM Mainframe Forum: FAQ Memberlist Usergroups Profile Log in to check your private messages Log in
 

 

Find the optimal BUFND and BUFNI values for AMP parameter

 
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> JCL & VSAM
View previous topic :: :: View next topic  
Author Message
niran_345

New User


Joined: 26 Apr 2007
Posts: 9
Location: Chennai

PostPosted: Thu May 17, 2007 5:48 pm    Post subject: Find the optimal BUFND and BUFNI values for AMP parameter
Reply with quote

How to find the optimal BUFND and BUFNI values for AMP parameter in tuning the VSAM file for effective CPU optimization?
Back to top
View user's profile Send private message

expat

Global Moderator


Joined: 14 Mar 2007
Posts: 8593
Location: Back in jolly old England

PostPosted: Thu May 17, 2007 5:53 pm    Post subject:
Reply with quote

That depends on the acces method, is it sequential, random, or skip sequential.

The more buffers that you use, the more CPU you will use.
Back to top
View user's profile Send private message
niran_345

New User


Joined: 26 Apr 2007
Posts: 9
Location: Chennai

PostPosted: Thu May 17, 2007 6:09 pm    Post subject: Re: VSAM file buffering
Reply with quote

can you please give me some links or PDF regarding this, because i am not able get good information about this. icon_rolleyes.gif

Thanks.
Back to top
View user's profile Send private message
expat

Global Moderator


Joined: 14 Mar 2007
Posts: 8593
Location: Back in jolly old England

PostPosted: Thu May 17, 2007 10:18 pm    Post subject:
Reply with quote

Have a read of this

http://www.redbooks.ibm.com/abstracts/sg246105.html?Open
Back to top
View user's profile Send private message
View previous topic :: :: View next topic  
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> JCL & VSAM All times are GMT + 6 Hours
Page 1 of 1

 

Search our Forum:

Similar Topics
Topic Author Forum Replies Posted
No new posts Check Binary Values for symbols gandikk CA Products 3 Tue Mar 21, 2017 5:11 am
No new posts To display values of multiple rows in... vinu78 DB2 2 Thu Mar 09, 2017 1:20 pm
No new posts Replacing same string with different ... vickey_dw DFSORT/ICETOOL 6 Wed Feb 22, 2017 10:44 pm
No new posts setting new limit Key values for inde... srilata83 DB2 1 Fri Feb 10, 2017 9:24 pm
No new posts Can DFSPARM override SORTKEYS paramet... ashek15 DB2 2 Tue Jan 31, 2017 11:36 pm


Facebook
Back to Top
 
Mainframe Wiki | Forum Rules | Bookmarks | Subscriptions | FAQ | Tutorials | Contact Us