My searches haven't found anything that answers this question, and perhap s only Alan will know the answer, so here goes:
Does Standalone DDR (directly in an LPAR, not under z/VM) do a hardware assign & release for the 3590 tape drive addresses it uses? I'm thinking ahead to an upcoming DR exercise in which while I'm running DDR native in one LPAR some z/OS images are being IPL'd in other LPARs that also have access to the same tape drive ranges. I know z/OS does th e hardware assign when it varies the drive online, and I'm wondering if tha t will negatively impact Standalone DDR's access to the tape drive it is using. Once I'm far enough along that I can run DDR under z/VM I know it won't be an issue because z/VM will do the assign when the drive is attached to a virtual machine. Brian Nielsen
