Use the QTAPE option of the DEVSERV command to request a hexadecimal
display of:
- the following device-related MVS™ system
control blocks:
- Unit control block (UCB), UCB prefix, and UCB common extension
- Device class extension (DCE)
- and the following data buffers acquired directly from the device:
- Read device characteristics (RDC) data
- Read configuration data (RCD) data