On Tue, 6 Jan 2009 09:45:06 -0600, Nanda <nandakumar.pal...@hdfcbank.com> wrote:
>Dear all, >Has anyone used Transactional VSAM Services (DFSMStvs)? What are the >prereqs for this software / service (like Coupling Facility or whatever)? > >We want to have concurrent (1) CICS online & batch and (2) multiple batch >programs reading and writing to the same VSAM datasets. Can this be done >with DFSMStvs? What are the alternative practices. > >Thanx a ton, >Nanda > DFSMStvs is based upon VSAM RLS. VSAM RLS has a prereq of a coupling facility. Which means you must be in a sysplex. Yes, the entire reason for DFSMStvs is to allow CICS and batch to safely read and update VSAM files concurrently. Instead of this, we use a product called SYSB-II from H&W computing. http://www.hwcs.com . This product ends up transferring the batch VSAM I/O to the owning CICS region to do the actual I/O. It has a number of different ways to implement it, so you'd really need to look at the web site for more information. We have found it to be a very good product which does what it is supposed to do. -- John ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
