Logical reconfiguration allows or prevents use of a resource by
the operating system. Physical reconfiguration allows or prevents
use of a resource by the hardware. An operator can enter a CONFIG
command on the console with master authority to logically and physically
reconfigure the following hardware units, if applicable for the particular
processor complex:
- CPUs
- Central storage elements
- Central storage increments
- Channel paths
- I/O devices
Also, when an operator issues a CONFIG CPU command to reconfigure
a processor, the system logically reconfigures any Integrated Cryptographic
Feature (ICRF) attached to the processor.
Note: Physical reconfiguration may not be supported for
all hardware units by all processor models. (See Functional Characteristics).