On Thursday, 01/15/2009 at 11:11 EST, Florian Bilek <[email protected]> wrote: > I am planning to setup RACF in a CSE environemnt. The CSE is on two > different processors. I have read in the Program Directory that in this > case the RACF database mustn't be on a CSE formatted volume since it uses real > reserve/release CCWs. Therefore I can put it only on a real volume and > dedicate it to RACFVM or make a fullpack minidisk out of it. > > Isn't that an overkill of dedicating two full 3390 addresses (5 GB) for 2 > x 17 cylinder of data, the size of the database?? > > Could I put the Primary and the Backup at least on the same volume? > > What would you recommend?
Don't put the primary and backup on the same dasd. The whole point of the backup is to have a good database in case you get a h/w failure on the primary volume. If your storage controller allows it you can carve out smaller volumes (e.g. 200 cyls). While it might be wasteful, database integrity is more important than unused cylinders. Alan Altmark z/VM Development IBM Endicott
