Use the QDASD option of the DEVSERV command to validate MVS™ storage
resident control blocks for extended function status with data acquired
directly from the storage subsystem. Optionally, you can obtain 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)
- Storage subsystem control block (SSSCB)
- Device performance characteristics table (DPCT)
- and the following data buffers acquired directly from the device:
- Read device characteristics (RDC) data
- Read configuration data (RCD) data
- Sense subsystem status (SNSS) data