Enabling large queues

IBM® MQ supports queues larger than 2 GB.

On Windows systems, support for large files is available without any additional enablement. On AIX®, HP-UX, Linux®, and Solaris systems, you need to explicitly enable large file support before you can create queue files larger than 2 GB. See your operating system documentation for information on how to do this.

Some utilities, such as tar, cannot cope with files greater than 2 GB. Before enabling large file support, check your operating system documentation for information on restrictions on utilities you use.

For information about planning the amount of storage you need for queues, visit the IBM MQ website for platform-specific performance reports: https://www.ibm.com/support/docview.wss?rs=171&uid=swg27007150&loc=en_US&cs=utf-8&lang=en#1