Naming restrictions for queues

There are restrictions on the length of queue names. Some queue names are reserved for queues defined by the queue manager.

Restrictions on name lengths

Queues can have names up to 48 characters long.

Reserved queue names

Names that start with SYSTEM. are reserved for queues defined by the queue manager. We can use the ALTER or DEFINE REPLACE commands to change these queue definitions to suit your installation. The following names are defined for IBM MQ :

Queue Name	Description
SYSTEM.ADMIN.ACTIVITY.QUEUE	Queue for activity reports
SYSTEM.ADMIN.CHANNEL.EVENT	Queue for channel events
SYSTEM.ADMIN.COMMAND.EVENT	Queue for command events
SYSTEM.ADMIN.COMMAND.QUEUE	Queue to which PCF command messages are sent
SYSTEM.ADMIN.CONFIG.EVENT	Queue for configuration events
SYSTEM.ADMIN.PERFM.EVENT	Queue for performance events
SYSTEM.ADMIN.PUBSUB.EVENT	System publish/subscribe related event queue
SYSTEM.ADMIN.QMGR.EVENT	Queue for queue manager events
SYSTEM.ADMIN.TRACE.ROUTE.QUEUE	Queue for trace-route reply messages
SYSTEM.AUTH.DATA.QUEUE	The queue that holds access control lists for the queue manager. (Not for z/OS )
SYSTEM.CHANNEL.INITQ	Initiation queue for channels
SYSTEM.CHANNEL.SYNCQ	The queue that holds the synchronization data for channels
SYSTEM.CHLAUTH.DATA.QUEUE	IBM MQ channel authentication data queue
SYSTEM.CICS.INITIATION.QUEUE	Queue used for triggering (not for z/OS)
SYSTEM.CLUSTER.COMMAND.QUEUE	Queue used to communicate repository changes between queue managers
SYSTEM.CLUSTER.HISTORY.QUEUE	The queue is used to store the history of cluster state information for service purposes.
SYSTEM.CLUSTER.REPOSITORY.QUEUE	Queue used to hold information about the repository
SYSTEM.CLUSTER.TRANSMIT.MODEL.QUEUE	The queue used to create individual transmit queues for each cluster-sender channel.
SYSTEM.CLUSTER.TRANSMIT.QUEUE	Transmission queue for all destinations managed by cluster support
SYSTEM.COMMAND.INPUT	Queue to which command messages are sent on z/OS
SYSTEM.COMMAND.REPLY.MODEL	Model queue definition for command replies (for z/OS )
SYSTEM.DEAD.LETTER.QUEUE	Dead-letter queue (not for z/OS )
SYSTEM.DEFAULT.ALIAS.QUEUE	Default alias queue definition
SYSTEM.DEFAULT.INITIATION.QUEUE	Queue used to trigger a specified process (not for z/OS )
SYSTEM.DEFAULT.LOCAL.QUEUE	Default local queue definition
SYSTEM.DEFAULT.MODEL.QUEUE	Default model queue definition
SYSTEM.DEFAULT.REMOTE.QUEUE	Default remote queue definition
SYSTEM.DURABLE.SUBSCRIBER.QUEUE	A local queue used to hold a persistent copy of the durable subscriptions in the queue manager
SYSTEM.HIERARCHY.STATE	Queue used to hold information about the state of inter-queue manager relationships in a publish/subscribe hierarchy
SYSTEM.JMS.TEMPQ.MODEL	Model for JMS temporary queues
SYSTEM.INTERNAL.REPLY.QUEUE	IBM MQ internal reply queue (not for z/OS )
SYSTEM.INTER.QMGR.CONTROL	Queue used in a publish/subscribe hierarchy to receive requests from a remote queue manager to create a proxy subscription
SYSTEM.INTER.QMGR.PUBS	Queue used in a publish/subscribe hierarchy to receive publications from a remote queue manager
SYSTEM.INTER.QMGR.FANREQ	Queue used in a publish/subscribe hierarchy to process requests to create a proxy subscription on a remote queue manager
SYSTEM.MQEXPLORER.REPLY.MODEL	Model queue definition for replies for IBM MQ Explorer
SYSTEM.MQSC.REPLY.QUEUE	Model queue definition for MQSC command replies (not for z/OS )
SYSTEM.QSG.CHANNEL.SYNCQ	Shared local queue used for storing messages that contain the synchronization information for shared channels ( z/OS only)
SYSTEM.QSG.TRANSMIT.QUEUE	Shared local queue used by the intra-group queuing agent when transmitting messages between queue managers in the same queue sharing group ( z/OS only)
SYSTEM.RETAINED.PUB.QUEUE	A local queue used to hold a copy of each retained publication in the queue manager.
SYSTEM.SELECTION.EVALUATION.QUEUE	IBM MQ internal selection evaluation queue (not for z/OS )
SYSTEM.SELECTION.VALIDATION.QUEUE	IBM MQ internal selection validation queue (not for z/OS )

Parent topic: Configuration reference