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-4
F
preparing for RDF protection 3-2
purge operations 2-11
Enscribe file-label modifications 6-8
Error messages
file system C-2
Error recovery
create operation 5-5
modify operation 5-2
open operation 5-2
RDF error 700, modify operation 5-2
RDF error 705, open operation 5-2
RDF error 739, create operation 5-5
Event log
scanning messages in EMS 1-11, 4-25
Exception files
description B-8
examining B-7
records 1-11
EXCLUDE clauses 11-2
EXIT command 8-23, 9-6, A-3, A-16
Expand
estimating required resources 2-3
multi-CPU paths (superpaths) 12-4
EXPAND line failure 5-7
Extractor process 1-16
auxiliary 12-1
configuration 3-26, 3-30, 8-56, 8-59,
A-7
, A-8, A-9, A-10
failure 5-8
object code file 3-9
parameters
ADD EXTRACTOR example 8-11
adding to configuration file 3-26,
3-30, 8-9, A-2
ALTER EXTRACTOR
example 8-15
altering 8-14
configuration example 3-31, B-4
displaying configuration
values 8-31, A-5
displaying option values 8-85, A-12
INFO EXTRACTOR example 8-35,
8-38
RESET EXTRACTOR
example 8-54
resetting option values 8-53, A-6
SET EXTRACTOR example 8-58
setting option values 3-26, 3-30,
8-56, 8-59, A-7, A-8, A-9, A-10
F
Failures
extractor 5-8
processor 5-8
RDF state transition 5-10
updater 5-9
FC command 8-24, A-4
Features, RDF subsystem 1-7
File
auditing by TMF required 2-5
backing up 2-7
configuration command example B-4
error recovery
creation failures 5-5
modification failures 5-2
open failures 5-2
exception, examining B-7
label modifications 2-10
log 1-11
OBEY command 4-6, B-4
partitioned 2-9
placement of partitions 2-11
RDF requirements 2-5
temporary 2-11
File code 900 2-8
FILE command 9-7, A-16
File names A-18
File Recovery on the Backup System 5-12
File Recovery on the Primary System 5-12
File replication 1-32, 11-1