RDF System Management Manual
Table Of Contents
- RDF System Management Manual
- What’s New in This Manual
- About This Manual
- 1 Introducing RDF
- RDF Subsystem Overview
- RDF Processes
- RDF Operations
- Reciprocal and Chain Replication
- Available Types of Replication to Multiple Backup Systems
- Triple Contingency
- Loopback Configuration (Single System)
- Online Product Initialization
- Online Database Synchronization
- Online Dumps
- Subvolume- and File-Level Replication
- Shared Access DDL Operations
- EMS Support
- SMF Support
- RTD Warning Thresholds
- Process-Lockstep Operation
- Support for Network Transactions
- RDF and NonStop SQL/MX
- Zero Lost Transactions (ZLT)
- Monitoring RDF Entities With ASAP
- 2 Preparing the RDF Environment
- 3 Installing and Configuring RDF
- 4 Operating and Monitoring RDF
- 5 Managing RDF
- Recovering From File System Errors
- Handling Disk Space Problems
- Responding to Operational Failures
- Stopping RDF
- Restarting RDF
- Carrying Out a Planned Switchover
- Takeover Operations
- Reading the Backup Database
- Access to Backup Databases in a Consistent State
- RDF and NonStop SQL/MP DDL Operations
- RDF and NonStop SQL/MX Operations
- Backing Up Image Trail Files
- Making Online Dumps With Updaters Running
- Doing FUP RELOAD Operations With Updaters Running
- Exception File Optimization
- Switching Disks on Updater UPDATEVOLUMES
- 6 Maintaining the Databases
- 7 Online Database Synchronization
- 8 Entering RDFCOM Commands
- 9 Entering RDFSCAN Commands
- 10 Triple Contingency
- 11 Subvolume- and File-Level Replication
- 12 Auxiliary Audit Trails
- 13 Network Transactions
- Configuration Changes
- RDF Network Control Files
- Normal RDF Processing Within a Network Environment
- RDF Takeovers Within a Network Environment
- Takeover Phase 1 – Local Undo
- Takeover Phase 2 – File Undo
- Takeover Phase 3 – Network Undo
- Takeover Phase 3 Performance
- Communication Failures During Phase 3 Takeover Processing
- Takeover Delays and Purger Restarts
- Takeover Restartability
- Takeover and File Recovery
- The Effects of Undoing Network Transactions
- Takeover and the RETAINCOUNT Value
- Network Configurations and Shared Access NonStop SQL/MP DDL Operations
- Network Validation and Considerations
- RDF Re-Initialization in a Network Environment
- RDF Networks and ABORT or STOP RDF Operations
- RDF Networks and Stop-Update-to-Time Operations
- Sample Configurations
- RDFCOM STATUS Display
- 14 Process-Lockstep Operation
- Starting a Lockstep Operation
- The DoLockstep Procedure
- The Lockstep Transaction
- RDF Lockstep File
- Multiple Concurrent Lockstep Operations
- The Lockstep Gateway Process
- Disabling Lockstep
- Reenabling Lockstep
- Lockstep Performance Ramifications
- Lockstep and Auxiliary Audit Trails
- Lockstep and Network Transactions
- Lockstep Operation Event Messages
- 15 NonStop SQL/MX and RDF
- Including and Excluding SQL/MX Objects
- Obtaining ANSI Object Names From Updater Event Messages
- Creating NonStop SQL/MX Primary and Backup Databases from Scratch
- Creating a NonStop SQL/MX Backup Database From an Existing Primary Database
- Online Database Synchronization With NonStop SQL/MX Objects
- Offline Synchronization for a Single Partition
- Online Synchronization for a Single Partition
- Correcting Incorrect NonStop SQL/MX Name Mapping
- Consideration for Creating Backup Tables
- Restoring to a Specific Location
- Comparing NonStop SQL/MX Tables
- 16 Zero Lost Transactions (ZLT)
- A RDF Command Summary
- B Additional Reference Information
- C Messages
- D Operational Limits
- E Using ASAP
- Index
Index
HP NonStop RDF System Management Manual—524388-003
Index-13
U
configuration for RDF 2-6
configuring 3-14
DEFER AUDITDUMP command 3-14
initializing 3-14
RDF recovery from crash 5-10, 5-11
RDF requirements 2-6
starting 3-37
transactions
designing for RDF protection 2-9
volume crash 5-10
with dump process 2-6
without dump process 2-7
TMFCOM
START TRANSACTION command 3-8,
3-14
Transactions
designing for RDF protection 2-9
lockstep 14-4
network 13-1
Triple contingency feature 1-29, 10-1
U
UNPINAUDIT command 8-112, A-15
unplanned 1-4
Unplanned outages 1-4
UPDATE option, START RDF
command 3-38
Updater
failure 5-9
Updater process 1-21
alternate key files, auditing 1-23
configuration 8-81
DELETE VOLUME example 8-19,
8-21, 8-22
deleting volume 8-20, A-3
error recovery 5-2
file system errors 1-24, 5-2
object code file 3-9
parameters B-5
ADD VOLUME example 8-12
adding to configuration file 8-9, A-2
altering 8-14
displaying configuration
values 8-31, A-5
displaying option values 8-85
INFO VOLUME example 8-37
RESET VOLUME example 8-55
resetting option values 8-53, A-6
SET VOLUME example 8-84
setting option values 8-81
SHOW VOLUME example 8-88
partitioned files, auditing 1-23
RDF errors 5-2
restart point 1-23
restart points
error recovery 5-2
UPDATERDELAY parameter 8-67
UPDATEVOLUME parameter 8-81
User interfaces, RDF subsystem 1-11
V
VALIDATE CONFIGURATION
command 8-113, A-15
Views, NonStop SQL/MP 2-9, 3-3
Volume
audited on backup system 3-3
configuration 2-2
crash, TMF 5-10
limit 2-2
mapping 2-2
mapping primary to backup 3-3
names
different on primary and
backup 3-3
VOLUME command 8-47
Volume names 8-6
VOLUME parameter 8-20