OpenVMS System Management Guide, 2nd Edition

Present methods for configuring and naming print and batch queues
Focus on the centralized queue manager
Provide guidelines for configuring queues and the queue manager to ensure proper fail-over
Discuss procedures for defining forms and device control libraries
Many changes have been made to the queue-management subsystem over the last several years, and it can be difficult to remember what features are available in each OpenVMS version. To clarify this, table 8.1 summarizes queue-management changes that have occurred between VMS/VAX 5.4 and OpenVMS 6.0.
| Feature | VMS/VAX A5.5, OpenVMS Alpha v1.0, pre-VAX/VMS v5.5 | OpenVMS v5.5, OpenVMS/Alpha v1.5 | OpenVMS/VAX v6.0 and later, OpenVMS/Alpha v6.1 and later |
|---|---|---|---|
| Queue manager | Distributed | Centralized | Centralized |
| Queue manager fail-over | No | Yes | Yes |
| Queue autostart and fail-over | No | Yes | Yes |
| Multiple queue managers | No | No | Yes |
The first set of queue-management changes was introduced in VAX/ VMS v5.5. At the same time, Digital provided a vA5.5 that was equivalent to v5.5, less the queue-management changes. This was to provide a smoother migration path for sites that needed v5.5 functionality, but required additional time to make changes to queue configurations. In terms of queue management, VMS/VAX v5.4 and earlier and A5.5 are identical. Since this changeover is more than 10 years old, version-specific features are not discussed further in this chapter. Only post-v6 features are described.
The OpenVMS queue-management subsystem allows printers and computer resources to be shared using two types of queues.