Introduction; Why Migrate - Compaq AAR-88LB-TE Migration Manual

Rtr version 2 to rtr version 3
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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
1

Introduction

Introduction 1–1

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