z/VM: CP Commands and Utilities Reference - z/VM - IBM

Responses
Messages
To change the IOCDS file on the SE hard disk, you must:
a. Update the IOCP source file.
b. Run the IOCP utility (see page 1849) against the updated IOCP file. If the
IOCP utility runs without errors, it downloads the new IOCDS file to the SE
hard disk.
c. Issue the SET IOCDS_ACTIVE command (see page 1258) to make the new
IOCDS file the active file that the processor will use during the next
power-on reset (POR).
4. For more information about deleting channel paths from your I/O configuration
during initialization, see z/VM: I/O Configuration.
5. To define a new channel path ID on the system, use the DEFINE CHPID or
PATH command. See “DEFINE CHPID / PATH” on page 124.
6. To change the definition of an existing reconfigurable channel path ID on the
system, use the MODIFY CHPID or PATH command. (See page 595.) There is
no MODIFY command to change the definitions of the other types of channel
paths. If you need to change their definitions, you must:
a. Delete the existing channel path definition, using the DELETE CHPID or
PATH command.
b. Redefine the channel path definition, using the DEFINE CHPID or PATH
command.
7. To display the status of a specific logical channel path and the devices with that
logical channel path installed, or to display the type of a specific logical channel
path, use the QUERY CHPID command. (See page 704.)
8. To display the physical status of all 256 of the machine’s channel paths, use the
QUERY CHPIDS command. (See page 708.)
Note: If the channel path is in single channel service (SCS) mode, it will appear
as “not configured” in the display.
9. To display the logical and physical status of the channel paths installed on one
or more devices, use the QUERY PATHS command.(See page 918.)
Response 1:
To delete channel path ID 32 from the I/O configuration, enter the following:
delete chpid 32
Channel path configuration change completed successfully
Ready;
Response 2:
To delete channel path ID 43 from the I/O configuration when it is currently defined
only in channel-subsystem image 3, enter the following:
delete chpid 43 css 3
Channel path configuration change completed successfully
Ready;
HCP1006E Command processing cannot complete
because the system does not support
the logical-channel-subsystem facility.
DELETE CHPID / PATH
HCP6805E Cannot find RDEV for TYPE 1
subchannel
Chapter 2. CP Commands 219