Re: CL command to vary off a line description

Le 06/11/2020 à 18:00, Mayer, Michael via MIDRANGE-L a écrit :

VRYCFG CFGOBJ(TAPMLB04) CFGTYPE(*MLBRSC) STATUS(*ALLOCATE) RSRCNAME(TAP03)
When the backups have completed (via BRMS), we have a WRKCTLGBRM entry at the end of it that
Call a program that does this:

PGM
VRYCFG CFGOBJ(TAPMLB04) CFGTYPE(*MLBRSC) +
STATUS(*DEALLOCATE) RSRCNAME(TAP03)
ENDPGM

Not sure to understand why you allocate and deallocate.

If you set the resource as *UNPROTECTED on all systems which share it, any system can use it when needed if it is not used by another one. And this resource allocation remains the same after a vary off/on sequence or an IPL.

I am just looking at KnowledgeCenter for V7R1, and they write that this valued is not recommended. I cannot see why. We use it for almost 20 years, and with old versions such as V5R2 and never got any issue. If the drive is used by a system, it cannot be use by another one, just like if you set the resource as *ALLOCATE.

They removed this recommendation on V7R2, V7R3, and V7R4.