Govind Chettiar wrote: >Not ashamed to acknowledge my ignorance here
No need to be ashamed. Only wise persons ask questions. ;-) >... but I'm not fully able to follow discussions of "separate images" or >"shared environments". If this chap says he had up to 4 TSO sessions, but was >working on the same datasets and so on, would they have been different LPARs. >Aren't two LPARs like two machines, really? Like we have a Test LPAR and a >Prod LPAR. Ok. A LPAR is a virtual machine. You can have one or many LPAR on a physical machine. It depends on how you configure your physical machine. A Logical Partition (LPAR) behave as it is a full machine with its own CPU, memory, devices, etc. Depending on your physical machine setup, some devices can be shared without risking enqueue problems. Beside that, you can have one or many Sysplex(es). So for example you have a Production Sysplex with 5 LPARs and one Test Sysplex with 2 LPARs. A Sysplex is about sharing resources, like RACF DB, JES spool, SMS, HSM, etc. In this example scenario, you can have 5 concurrent TSO sessions, one per LPAR on that Production Sysplex. All of them with the same RACF (or other ESM) id. You can use same datasets, etc. as long GRS and TSO allow you to do that. Mark Zelden gave you his resources what to do to achieve that. For now, just look at his reply only and ignore all those topic drifts just for now. For now: do you have a Sysplex? If so, what are shared in that? RACF, JES2, etc? Groete / Greetings Elardus Engelbrecht ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
