I need a short lesson on backing up DASD volumes using DDR.
I've added four 3390 volumes to my z/VM configuration and have formatted numerous mini disks on them. I would like to get a full backup of these 4 volumes using DDR. However, when I run DDR, and supply the input address of these volumes, I get a message: HCPDDR704E DEVICE xxxx NOT OPERATIONAL. I've tried running DDR under MAINT & OPERATNS and get the same message. Is there something I have to do with these volumes in order for DDR to see them? Any help would be greatly appreciated. Thanks...Chris (z/VM newbie)
