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HCL OneDB 2.0.1
What's new in
HCL OneDB™
2.0.1
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HCL OneDB™
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HCL OneDB™
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Administering
In addition to administering the database server, you can tune performance, replicate data, and archive data.
Enterprise Replication
The
HCL OneDB™
Enterprise Replication Guide
describes the concepts of data replication using
HCL® OneDB® Enterprise Replication
, including how to design your replication system, as well as administer and manage data replication throughout your enterprise.
Setting up and managing Enterprise Replication
After you design your replication system, you define it and start replication.
Preparing the Replication Environment
The following topics explain the steps that are required for setting up
Enterprise Replication
.
Preparing the Disk
These topics describe how to prepare your disk for
Enterprise Replication
.
Administering
In addition to administering the database server, you can tune performance, replicate data, and archive data.
System administration
These topics contain concepts, procedures, and reference information for database and database server administrators to use for managing and tuning
HCL OneDB™
database servers.
Backup and Restore Guide
The
HCL OneDB™ Backup and Restore Guide
describes how to use the
HCL® OneDB®
ON-Bar
utility to back up and restore database server data.
This will enable you to recover your databases after data is lost or becomes corrupted due to hardware or software failure or accident.
Enterprise Replication
The
HCL OneDB™
Enterprise Replication Guide
describes the concepts of data replication using
HCL® OneDB® Enterprise Replication
, including how to design your replication system, as well as administer and manage data replication throughout your enterprise.
Planning and designing for Enterprise Replication
Before you set up your replication system, plan how to include Enterprise Replication into your database server environment, design your database schema by following Enterprise Replication requirements, and then design your replication system between database servers.
Setting up and managing Enterprise Replication
After you design your replication system, you define it and start replication.
Preparing the Replication Environment
The following topics explain the steps that are required for setting up
Enterprise Replication
.
Preparing the Network Environment
You must prepare the network environment for each database server in an
Enterprise Replication
domain.
Preparing the Disk
These topics describe how to prepare your disk for
Enterprise Replication
.
Logical Log Configuration Disk Space
Logical Log Configuration Guidelines
Logical logs must be configured correctly for
Enterprise Replication
.
Disk Space for Delete Tables
If you use the time stamp, time stamp and SPL routine, or delete wins conflict resolution rules, you must provide enough disk space for the
delete tables
that
Enterprise Replication
creates to keep track of modified rows for conflict resolution.
Shadow column disk space
If you plan to use shadow columns, make sure to allow additional disk space for their values.
Setting Up Send and Receive Queue Spool Areas
Setting Up the Grouper Paging File
Creating ATS and RIS Directories
You can create directories for Aborted Transactions Spooling (ATS) and Row Information Spooling (RIS) files instead of using the default directories.
Preparing the Database Server Environment
To prepare the database server environment, set database server environment variables and configuration parameters, and synchronize the operating system time on all participating database servers.
Preparing Data for Replication
Data Preparation Example
Using High-Availability Clusters with Enterprise Replication
Defining Replication Servers, Replicates, Participants, and Replicate Sets
These topics describe the steps defining and starting
Enterprise Replication
.
Grid setup and management
A grid is a set of replication servers that are configured to simplify administration. When you run SQL data definition statements from within a grid context on a grid server, the statements propagate to all servers in the grid. You can run SQL data manipulation statements and routines through grid routines. You can choose to set up replication automatically when you create a table through a grid. You can propagate external files to other servers in the grid.
Shard cluster setup
Sharding is a way to horizontally partition a single table across multiple database servers in a shard cluster. Enterprise Replication moves the data from the source server to the appropriate target server as specified by the sharding method. You query a sharded table as if the entire table is on the local server. You do not need to know where the data is. Queries that are performed on one shard server retrieve the relevant data from other servers in a shard cluster. Sharding reduces the index size on each shard server and distributes performance across hardware. You can add shard servers to the shard cluster as your data grows.
Managing Replication Servers and Replicates
Monitor and troubleshooting Enterprise Replication
You can monitor and diagnose problems with the Enterprise Replication system by using several different methods, depending on your needs.
Push data feature
Loopback replication
Appendixes
Preparing the Disk
These topics describe how to prepare your disk for
Enterprise Replication
.
Logical Log Configuration Disk Space
Logical Log Configuration Guidelines
Logical logs must be configured correctly for
Enterprise Replication
.
Disk Space for Delete Tables
If you use the time stamp, time stamp and SPL routine, or delete wins conflict resolution rules, you must provide enough disk space for the
delete tables
that
Enterprise Replication
creates to keep track of modified rows for conflict resolution.
Shadow column disk space
If you plan to use shadow columns, make sure to allow additional disk space for their values.
Setting Up Send and Receive Queue Spool Areas
Setting Up the Grouper Paging File
Creating ATS and RIS directories
You can create directories for Aborted Transactions Spooling (ATS) and Row Information Spooling (RIS) files instead of using the default directories.
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