On Thursday, 05/19/2011 at 08:31 EDT, Charles Grady <charles.gr...@dol.state.ga.us> wrote: > We have z/VM in one LPAR on Z9 processor. IOCDS is created and maintained by > z/OS in another LPAR. We have four 3592 stand alone tape drives that are shared > across LPARs. They want to add AUTOSWITCH parm to the HCD definitions for > these devices. ANY NEGATIVE effects to z/VM? These are the only tapes that > z/VM has access to.
z/VM doesn't care what parameters you add to HCD since it doesn't look at them. CP VARY gives you full control over whether he issues an ASSIGN to the drive at VARY ON time (default = no), or lets a product like IBM Tape Manager for z/VM do it whenever it wants to mount a tape, releasing the drive when the tape is unmounted. Alan Altmark z/VM and Linux on System z Consultant IBM System Lab Services and Training ibm.com/systems/services/labservices office: 607.429.3323 mobile; 607.321.7556 alan_altm...@us.ibm.com IBM Endicott
