Jeff, Is the STK 9840C configured internally as a 9840 drive (native mode) or in a 3490/3590 compatibility modes? You will need to make sure the drive is configured in the same mode as defined by zVM's IOCP. Either usually 3490 or 3590 mode.
If the drive has the Full-Code option enabled in the drive configuration, it will run in 9840 native mode regardless of how the drive type is configured. Disable this Full-code option if it is set (or have your Oracle/STK support folks check it for you.) Based on how the drive is actually configured, you will need to use the appropriate CMS TAPE modeset command options to write to the drive successfully. Regards, Mike Rydberg Brocade -----Original Message----- From: The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] On Behalf Of Jeff Gribbin Sent: Thursday, August 04, 2011 3:21 AM To: IBMVM@LISTSERV.UARK.EDU Subject: HCPDPM1280E with STK 9840C Tape Drive In February 2007, Chris Little reported receiving the message HCPDPM1280E Device 0181 not usable; assign lost while attempting to write to a tape cartridge loaded into a STK 9840C tape drive. As far as I can see, no resolution was posted at the time. I am experiencing exactly these symptoms with the same device-type. The device has been in regular use on several z/OS LPARS on the same machine without any problems but we have never previously attempted to use it from the z/VM LPAR. After being taken offline to the z/OS LPARS the device happily comes online to z/VM and can be attached to a CMS user who can successfully read the tape (well, TAPE DVOL1 works) but any attempt to write to the tape immediately elecits a brief delay (about 5 seconds) followed by the HCP1280E. (I have tried MOVEFILE and TAPE DUMP - identical symptoms in both cases.) The cartridge has been double-checked and is definitely set for write-permit. I'm hoping that maybe somebody did discover a resolution but for whatever reason it either didn't get posted or I've been looking in the wrong place! Thoughts, anybody? TIA Jeff Gribbin
