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
Entering RDFCOM Commands
HP NonStop RDF System Management Manual—524388-003
8-35
Command Overview
VOLUME $DATA03
VOLUME ATINDEX 0
VOLUME CPUS 2:1
VOLUME PRIORITY 160
VOLUME UPDATEVOLUME $DATA3
VOLUME IMAGEVOLUME $SECIT2
VOLUME PROCESS $UP03
TRIGGER PROGRAM $SYSTEM.RDF.RDFCOM
TRIGGER INFILE $DATA01.RDF.RDFCONF
TRIGGER OUTFILE $DATA01.RDF.OUTFILE
TRIGGER CPUS 0:1
TRIGGER PRIORITY 150
TRIGGER NOWAIT
TRIGGER REVERSE
Note that the primary system name is set implicitly and the backup system name is set
in the INITIALIZE RDF command.
INFO EXTRACTOR Command
To display the current configuration parameters for the auxiliary extractor process
associated with auxiliary audit trail AUX02, enter the following command:
]INFO EXTRACTOR ATINDEX 2
The output shows that the auxiliary extractor for AUX02 is configured with its default
parameter values: running in CPUs 2 and 1, with a priority of 165, and with the default
RTD warning threshold of 60 seconds:
EXTRACTOR ATINDEX 2
EXTRACTOR CPUS 2:1
EXTRACTOR PRIORITY 165
EXTRACTOR PROCESS $EXT2
EXTRACTOR RTDWARNING 60
INFO EXTRACTOR Command With OBEYFORM Option
The OBEYFORM option is useful when you want to create an RDF configuration
command file from an existing configuration: for example, for later use in an OBEY
command. To copy the current extractor process configuration parameters in
command file format to the output file named $RDF.EX.COMFL, enter:
]OUT $RDF.EX.COMFL
]INFO EXTRACTOR, OBEYFORM
RDF produces the following output, based on the configuration used in the previous
example:
SET EXTRACTOR ATINDEX 2
SET EXTRACTOR CPUS 2:1
SET EXTRACTOR PRIORITY 165