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Parameter descriptions

 

(channel-name)

The name of the channel to be tested. This is required.

CMDSCOPE

This parameter applies to z/OS only and specifies how the command is executed when the queue manager is a member of a queue-sharing group.

If CHLDISP is set to SHARED, CMDSCOPE must be blank or the local queue manager.

‘ ’

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 only if you are using a queue-sharing group 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.

The ‘*’ option is not permitted if CHLDISP is FIXSHARED.

CHLDISP

This parameter applies to z/OS only and can take the values of:

  • PRIVATE

  • SHARED

  • FIXSHARED

In conjunction with the various values of the CMDSCOPE parameter, this parameter controls two types of channel:

SHARED

A receiving channel is shared if it was started in response to an inbound transmission directed to the queue-sharing group.

A sending channel is shared if its transmission queue has a disposition of SHARED.

PRIVATE

A receiving channel is private if it was started in response to an inbound transmission directed to the queue manager.

A sending channel is private if its transmission queue has a disposition other than SHARED.

This disposition is not related to the disposition set by the disposition of the queue-sharing group of the channel definition.

The combination of the CHLDISP and CMDSCOPE parameters also controls from which queue manager the channel is operated. The possible options are:

  • On the local queue manager where the command is issued.

  • On another specific named queue manager in the group.

  • On the most suitable queue manager in the group, determined automatically by the queue manager itself.

The various combinations of CHLDISP and CMDSCOPE are summarized in Table 1

CHLDISP and CMDSCOPE for PING CHANNEL
CHLDISP CMDSCOPE( ) or CMDSCOPE (local-qmgr) CMDSCOPE (qmgr-name) CMDSCOPE(*)
PRIVATE Ping private channel on the local queue manager Ping private channel on the named queue manager Ping private channel on all active queue managers
SHARED Ping a shared channel on the most suitable queue manager in the group

This might automatically generate a command using CMDSCOPE and send it to the appropriate queue manager. If there is no definition for the channel on the queue manager to which the command is sent, or if the definition is unsuitable for the command, the command fails.

The definition of a channel on the queue manager where the command is entered might be used to determine the target queue manager where the command is actually run. Therefore, it is important that channel definitions are consistent. Inconsistent channel definitions might result in unexpected command behavior.

Not permitted Not permitted
FIXSHARED Ping a shared channel on the local queue manager Ping a shared channel on the named queue manager Not permitted

DATALEN(integer)

The length of the data, in the range 16 through 32 768. This is optional.

 

Parent topic:

PING CHANNEL


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