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

Responses
other part of the hardware’s view: the active I/O configuration data set (IOCDS)
file on the support element (SE) hard disk.
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 changing channel path definitions in your I/O
configuration, 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 page 124.)
6. To delete an existing channel path ID on the system, use the DELETE CHPID
or PATH command. (See page 218.)
7. To change the definition of an existing nonreconfigurable channel path ID on
the system, 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.
8. 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.)
9. 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.
10. 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 add 2 partitions to a reconfigurable channel path, enter the following:
modify chpid 1f add access_list vm6 vm9
Channel path configuration change completed successfully
Ready;
Response 2:
To delete 2 logical partitions from a reconfigurable channel path, enter the following:
modify chpid 1f conditional_delete access_list vm1 vm5
Channel path configuration change completed successfully
Ready;
Response 3:
MODIFY CHPID / PATH
To add access for an existing channel path to an additional channel-subsystem
image, enter the following:
Chapter 2. CP Commands 597