Hello, all. I don't know if any of you are doing disk replication to a DR site, but we are, and we are trying to resolve a specific problem with CICS and VSAM file.
CICS, in the case of LSR pools hold the data in the buffers until a buffer shortage\wait type of condition occurs. When that happens CICS flushes the buffers and updates the high used RBA's of the files. In the case of a DR test. We use the data as is. We copy the current replicating data to other DASD so that we can perform the test by bringing up the system and testing it. Well the only way we can think of making sure we get all the VSAM data is by closing the files at the production site which is not feasible. Is anyone else doing this kind of mirroring, and are there things you are doing that fixe the VSAM buffering problem? The only thing I can think of doing is adjusting the LSR buffer pools so that waits occur every so many minutes, I'm staying away from share option 4,4 on the VSAM files which are a real performance hit. Any takers are welcome. Also as an aside the implication here is that in the case of a real disaster there is data missing from the VSAM files, or am I wrong and full of it? Any help, opinions, whatever are welcome. ========================== This email, and any files transmitted with it, is confidential and intended solely for the use of the individual or entity to which it is addressed. If you have received this email in error, please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this message by mistake and delete this e-mail from your system. If you are not the intended recipient, you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
