1
Introduction
This document is intended to assist RTR Version 2 users to migrate to RTR
Version 3.
1.1 Why Migrate?
Migration to RTR Version 3 takes advantage of the new features and improved
capabilities of RTR Version 3. These include:
• Improved installation procedure using Polycenter Software Installation
Utility (PCSI), not VMSINSTAL
• Interoperability with multiple operating systems including:
OpenVMS (Alpha and VAX)
UNIX (DIGITAL UNIX, SUN Solaris, IBM AIX, HP–UX)
Windows NT
Windows 95 (client only)
• Improved ability to choose a primary server
• Use of more than one other node for a standby server
• Network transport selection (DECnet or TCP/IP)
• New SHOW command screens containing information about transactional
messages, resource managers, and some new state names
• New MONITOR pictures
• A new API, the Portable API
• Role clarification (Requestor changed to Client)
• Compatibility with Version 2 applications (no recompilation or linking
required)
• Use of mailboxes instead of OpenVMS cache and global sections for
interprocess communication
• Use of OpenVMS quotas, eliminating need for manually sizing configuration
parameters
• Enhanced partition management
• Enhanced journal management
• Exception logging
• Support for industry standard protocols for resource managers:
Microsoft DTC (Distributed Transaction Communicator) support
XA protocol
Introduction 1–1
