Peter, I think that VSAM will use as many buffers as there are available. In other words, if you have 2700 data buffers and read 2700 different CI's, VSAM will use all 270 buffers.
The question then is how much you can reduce the buffers without (significantly) increasing the EXCP count. I don't know how you can determine this other than testing at different levels. I'm curious as to why you are concerned with BLSR buffers. Do you have high paging counts when these jobs are running? Marty Wertheim Mainframe Performance Management 972-245-4632 This communication (including attachments) is confidential and protected from disclosure. It is intended only for the addressee. If you are not the intended recipient, you may not copy, disclose, or distribute this message to anyone else; any such actions may be unlawful. If you have received this communication in error, please contact the sender of the message to inform him or her of the error and permanently delete this e-mail (including attachments) from your computer system ---------------------------------------------------------------------- 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

