Parameter descriptions

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Parameter descriptions

The parameter descriptions also apply to the ALTER command, with the following exceptions:

The LIKE parameter applies only to the DEFINE command.
The NOREPLACE and REPLACE parameter applies only to the DEFINE command.
(storage-class)

Name of the storage class. This is required.
This is 1 through 8 characters. The first character is in the range A through Z; subsequent characters are A through Z or 0 through 9.
Exceptionally, certain all numeric storage class names are allowed, but are reserved for the use of IBM service personnel.
The storage class must not be the same as any other storage class currently defined on this queue manager.

CMDSCOPE

This parameter specifies how the command is executed when the queue manager is a member of a queue-sharing group.
CMDSCOPE must be blank, or the local queue manager, if QSGDISP is set to GROUP.

‘ ’

The command is executed on the queue manager on which it was entered. This is the default value.

qmgr-name

The command is executed on the queue manager you specify, providing the queue manager is active within the queue-sharing group.
We can specify a queue manager name other than the queue manager on which it was entered, only if you are using a shared queue environment and if the command server is enabled.

*

The command is executed on the local queue manager and is also passed to every active queue manager in the queue-sharing group. The effect of this is the same as entering the command on every queue manager in the queue-sharing group.

DESCR(description)

Plain-text comment. It provides descriptive information about the object when an operator issues the DISPLAY STGCLASS command.
It should contain only displayable characters. The maximum length is 64 characters. In a DBCS installation, it can contain DBCS characters (subject to a maximum length of 64 bytes).
If characters are used that are not in the coded character set identifier (CCSID) for this queue manager, they might be translated incorrectly if the information is sent to another queue manager

LIKE(stgclass-name)
The name of an object of the same type, whose parameters will be used to model this definition.
This parameter applies only to the DEFINE STGCLASS command.
If this field is not filled in, and you do not complete the parameter fields related to the command, the values are taken from the default definition for this object.
This is equivalent to specifying:
LIKE(SYSTEMST)
This default storage class definition can be altered by your installation to the default values required.
The queue manager searches for an object with the name you specify and a disposition of QMGR or COPY. The disposition of the LIKE object is not copied to the object you are defining.

QSGDISP (GROUP) objects are not searched.
LIKE is ignored if QSGDISP(COPY) is specified.
PASSTKTA(application name)

The application name that is passed to RACF when authenticating the passticket specified in the MQIIH header.

PSID(integer)

The page set identifier that this storage class is to be associated with. If you do not specify this, the value is taken from the default storage class SYSTEMST.
No check is made that the page set has been defined; an error is raised only when you try to put a message to a queue that specifies this storage class (MQRC_PAGESET_ERROR).
The string consists of two numeric characters, in the range 00 through 99. See DEFINE PSID.

QSGDISP
Specifies the disposition of the object in the group.
QSGDISP ALTER DEFINE
COPY The object definition resides on the page set of the queue manager that executes the command. The object was defined using a command that had the parameters QSGDISP(COPY). Any object residing in the shared repository, or any object defined using a command that had the parameters QSGDISP(QMGR), is not affected by this command. The object is defined on the page set of the queue manager that executes the command using the QSGDISP(GROUP) object of the same name as the 'LIKE' object.
GROUP
The object definition resides in the shared repository. The object was defined using a command that had the parameters QSGDISP(GROUP). Any object residing on the page set of the queue manager that executes the command (except a local copy of the object) is not affected by this command. If the command is successful, the following command is generated and sent to all active queue managers in the queue-sharing group to attempt to refresh local copies on page set zero:
DEFINE STGCLASS(storage-class) 
REPLACE QSGDISP(COPY)
The ALTER for the group object takes effect regardless of whether the generated command with QSGDISP(COPY) fails.
The object definition resides in the shared repository. This is allowed only if the queue manager is in a queue-sharing group. If the definition is successful, the following command is generated and sent to all active queue managers in the queue-sharing group to attempt to make or refresh local copies on page set zero:
DEFINE STGCLASS(storage-class) 
REPLACE QSGDISP(COPY)
The DEFINE for the group object takes effect regardless of whether the generated command with QSGDISP(COPY) fails.
PRIVATE The object resides on the page set of the queue manager that executes the command, and was defined with QSGDISP(QMGR) or QSGDISP(COPY). Any object residing in the shared repository is unaffected. Not permitted.
QMGR The object definition resides on the page set of the queue manager that executes the command. The object was defined using a command that had the parameters QSGDISP(QMGR). Any object residing in the shared repository, or any local copy of such an object, is not affected by this command. This is the default value. The object is defined on the page set of the queue manager that executes the command. This is the default value.
REPLACE and NOREPLACE

Whether the existing definition, and with the same disposition, is to be replaced with this one. This is optional. The default is NOREPLACE. Any object with a different disposition is not changed.
This parameter applies only to the DEFINE STGCLASS command.

REPLACE

The definition should replace any existing definition of the same name. If a definition does not exist, one is created.
If you use the REPLACE option, all queues that use this storage class must be empty.

NOREPLACE

The definition should not replace any existing definition of the same name.

XCFGNAME(group name)

If you are using the IMS™ bridge, this is the name of the XCF group to which the IMS system belongs. (This is the group name specified in the IMS parameter list.)
This is 1 through 8 characters. The first character is in the range A through Z; subsequent characters are A through Z or 0 through 9.

XCFMNAME(member name)

If you are using the IMS bridge, this is the XCF member name of the IMS system within the XCF group specified in XCFGNAME. (This is the member name specified in the IMS parameter list.)
This is 1 through 16 characters. The first character is in the range A through Z; subsequent characters are A through Z or 0 through 9.
Parent topic:
DEFINE STGCLASS

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QSGDISP	ALTER	DEFINE
COPY	The object definition resides on the page set of the queue manager that executes the command. The object was defined using a command that had the parameters QSGDISP(COPY). Any object residing in the shared repository, or any object defined using a command that had the parameters QSGDISP(QMGR), is not affected by this command.	The object is defined on the page set of the queue manager that executes the command using the QSGDISP(GROUP) object of the same name as the 'LIKE' object.
GROUP	The object definition resides in the shared repository. The object was defined using a command that had the parameters QSGDISP(GROUP). Any object residing on the page set of the queue manager that executes the command (except a local copy of the object) is not affected by this command. If the command is successful, the following command is generated and sent to all active queue managers in the queue-sharing group to attempt to refresh local copies on page set zero: DEFINE STGCLASS(storage-class) REPLACE QSGDISP(COPY) The ALTER for the group object takes effect regardless of whether the generated command with QSGDISP(COPY) fails.	The object definition resides in the shared repository. This is allowed only if the queue manager is in a queue-sharing group. If the definition is successful, the following command is generated and sent to all active queue managers in the queue-sharing group to attempt to make or refresh local copies on page set zero: DEFINE STGCLASS(storage-class) REPLACE QSGDISP(COPY) The DEFINE for the group object takes effect regardless of whether the generated command with QSGDISP(COPY) fails.
PRIVATE	The object resides on the page set of the queue manager that executes the command, and was defined with QSGDISP(QMGR) or QSGDISP(COPY). Any object residing in the shared repository is unaffected.	Not permitted.
QMGR	The object definition resides on the page set of the queue manager that executes the command. The object was defined using a command that had the parameters QSGDISP(QMGR). Any object residing in the shared repository, or any local copy of such an object, is not affected by this command. This is the default value.	The object is defined on the page set of the queue manager that executes the command. This is the default value.