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

Introduction
Table 2. Privilege Classes (continued)
Class User and Function
Any Commands belonging to class “Any” are available to any user, regardless of
his privilege class. These commands are primarily those used to gain access
to, or relinquish access from, the z/VM system.
H Reserved for IBM use.
I - Z
1 - 6
Delayed Responses to CP Commands
Classes I through Z are reserved for redefinition through user class
restructure (UCR) by each installation for its own use.
Many CP commands associated with DASD subsystems result in a channel
program being issued to a device or subsystem. In most cases, these operations
complete in a very short time, and the command response is presented to the
operator immediately. However, for 3990 Model 3 or Model 6 subsystems, some of
these operations do not complete immediately. The command responses associated
with such operations are called delayed responses.
The CP commands that may result in delayed responses are:
v COMMIT
v FLASHCOPY
v SET CACHE ON SUBSYSTEM
v SET CACHE OFF SUBSYSTEM
v SET CACHE OFF DEVICE
v SET CACHEFW OFF
v SET DASDFW OFF
v SET NVS ON
v SET NVS OFF
The responses to these commands are displayed in the following manner.
If the command completes immediately, the following response is displayed:
Normal command response.
If the command does not complete immediately, the following response is displayed:
Command started: command details
If the command completes successfully, the following response is displayed:
Normal command response.
If errors occur during the asynchronous processing of the command that prevent
the successful completion of the command, the following response is displayed:
Command failed: command details
Under certain circumstances, it is possible that a cache storage subsystem will not
notify CP when it has completed a command. When this occurs, the usual
completion responses cannot be generated. Under these circumstances, command
processing is ended after displaying the following response:
Command results lost: command details
If the originator of the command is not the system operator, the following response
may be issued to the system operator when the command completes.
Normal command response by userid.
8 z/VM: CP Commands and Utilities Reference