RDF/IMP and IMPX System Management Manual (RDF 1.3+)

Contents
Compaq NonStop™ RDF/IMP and IMPX System Management Manual—522204-001
ii
2. Preparing the RDF Environment
Image Trail Buffers and Files 1-16
Updater Processes
1-16
Purger Process
1-20
Available Types of Replication to Multiple Backup Systems
1-22
RDF Control Subvolume
1-23
Triple Contingency
1-24
Online Product Initialization
1-25
Online Database Synchronization
1-26
Online Dumps
1-26
EMS Support
1-26
SMF Support
1-26
Configuring an SMF Environment on the Primary System
1-27
Configuring an SMF Environment on the Backup RDF System
1-27
RTD Warning Thresholds
1-28
Support for Network Transactions
1-28
Lockstep Operation
1-28
Monitoring RDF Entities With ASAP
1-29
2. Preparing the RDF Environment
Configuring Hardware for RDF Operations 2-1
Primary System Configuration
2-1
Backup System Configuration
2-1
Disk Volume Limit
2-2
Volume-to-Volume Mapping
2-2
Data Communication (Expand) Resources
2-2
Preparing Software and Database Files for RDF Operations
2-4
Mixed-Release Installation
2-5
Configuring TMF for RDF Operations
2-5
Preparing Databases for RDF Protection
2-6
Specifying SYSGEN Parameters for RDF Data Blocks
2-7
Designing Transactions for RDF Protection
2-7