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Administering
In addition to administering the database server, you can tune performance, replicate data, and archive data.
Backup and Restore Guide
The Informix® Backup and Restore Guide describes how to use the Informix ON-Bar and ontape utilities to back up and restore database server data. These utilities enable you to recover your databases after data is lost or becomes corrupted due to hardware or software failure or accident.
ON-Bar backup and restore system
External backup and restore
Initializing HDR with an external backup and restore

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 Informix® database servers.
- Backup and Restore Guide
  The Informix® Backup and Restore Guide describes how to use the Informix ON-Bar and ontape utilities to back up and restore database server data. These utilities enable you to recover your databases after data is lost or becomes corrupted due to hardware or software failure or accident.
  - Overview of backup and restore
    These topics provide an overview of backup and restore concepts. They also provide information about planning for backup and restore operations.
  - ON-Bar backup and restore system
    - Overview of the ON-Bar backup and restore system
      ON-Bar consists of various components and it works with a storage manager to back up and restore data.
    - Configure the storage manager and ON-Bar
      The topics in this section provide the information that you need to plan and to set up ON-Bar with a storage manager.
    - Back up with ON-Bar
      You can use the ON-Bar utility to back up and verify storage spaces (dbspaces, blobspaces, and sbspaces) and logical-log files.
    - Restore data with ON-Bar
      You can use the ON-Bar utility to restore data that was backed up by the ON-Bar utility.
    - External backup and restore
      - External backup and restore overview
        An external backup and restore eliminates the downtime of systems because the backup and restore operations are performed external to the Informix® system.
      - RS secondary server external backup
        You can perform an external backup of an RS secondary server. Performing a backup of an RS secondary server blocks that RS secondary server, but does not block the primary server.
      - Data restored in an external restore
      - Performing an external restore
      - Initializing HDR with an external backup and restore
    - Customize and maintain ON-Bar
    - ON-Bar catalog tables
      These topics describe the ON-Bar tables that are stored in the sysutils database.
    - ON-Bar messages and return codes
      ON-Bar prints informational, progress, warning, and error messages to the ON-Bar activity log file. ON-Bar return codes indicate the status of the command.
  - ontape backup and restore system
  - Backup and restore a Remote Secondary Server(RSS)
  - Integrated Backup Encryption
    These topics provide information about Integrated Backup Encryption.
  - Informix® Primary Storage Manager
    The Informix® Primary Storage Manager manages storage for ON-Bar backup and restore operations, including parallel backups, that use file devices (disks).
  - archecker table level restore utility
  - Backup and restore configuration parameter reference
  - Cloud Backup
    These topics provide information about storing and retrieving the backups directly to the ecosystem of selected cloud providers, namely Amazon S3 and Softlayer Object Storage.
  - Appendixes
- Enterprise Replication
  The HCL® Informix® Enterprise Replication Guide describes the concepts of data replication using Informix Enterprise Replication, including how to design your replication system, as well as administer and manage data replication throughout your enterprise.

Initializing HDR with an external backup and restore

About this task

You can use external backups to initialize High-Availability Data Replication (HDR).

To initialize HDR with an external backup and restore:

Procedure

Block the source database server with the onmode -c block command.
Externally back up all chunks on the source database server.
When the backup completes, unblock the source database server with the onmode -c unblock command.
Make the source database server the primary server with the following command: onmode -d primary secondary_servername
On the target database server, restore the data from the external backup with a copy or file-backup program.
On the target database server, restore the external backup of all chunks with the onbar -r -e -p command.
On HDR, secondary server can restore only level-0 archives.
Make the target database server the secondary server with the following command: onmode -d secondary primary_servername
If the logical-log records written to the primary database server since step 1 still reside on the primary database server disk, the secondary database server reads these records to perform the logical recovery. Otherwise, perform the logical recovery with the onbar -r -l command.
The database server operational messages appear in the message log on the primary and secondary servers.