Welcome
Administering
In addition to administering the database server, you can tune performance, replicate data, and archive data.
Backup and Restore Guide
The HCL® Informix® Backup and Restore Guide describes how to use the HCL Informix 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.
Appendixes
Troubleshooting some backup and restore errors
This appendix lists some error and informational messages that you can receive during a backup or restore, describes under what circumstances the errors might occur or the message might appear, and provides possible solutions or workarounds.

HCL Informix® V15.0.0 documentation
Welcome to the documentation for HCL Informix® 15.0.0 and related client tools and products.
Product overview
HCL Informix® is a fast and scalable database server that manages traditional relational, object-relational, and dimensional databases. Its small footprint and self-managing capabilities are suited to embedded data-management solutions.
Installing
These topics describe how to install HCL Informix® database servers, client products, and modules.
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 HCL® Informix® Backup and Restore Guide describes how to use the HCL Informix 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
  - ontape backup and restore system
  - Backup and restore a Remote Secondary Server(RSS)
  - Integrated Backup Encryption
    These topics provide information about Integrated Backup Encryption.
  - HCL Informix® Primary Storage Manager
    HCL Informix® Primary Storage Manager is an application that manages storage devices used for backup and restore requests that are issued by . This storage manager supports both serial and parallel processing for backup and restore requests.
  - 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
    - Troubleshooting some backup and restore errors
      This appendix lists some error and informational messages that you can receive during a backup or restore, describes under what circumstances the errors might occur or the message might appear, and provides possible solutions or workarounds.
      - Corrupt page during an archive
        The message Archive detects that page is corrupt indicates that page validation failed. If you receive this message, you can identify the table that has the corrupt page.
      - Log backup already running
        When using to create a backup, the informational messages log backup is already running in the bar_act.log file and Process exited with return code 152 in the online.log file might appear under some circumstances.
      - No server connection during a restore
        During a whole system restore with , the error archive api error: no server connection might appear in the bar_act.log file. then connects to the storage manager successfully, but eventually fails with the error archive api error: not yet open. If you receive these message, you can take steps to solve the problem.
      - Drop a database before a restore
        If you perform a level-0 archive using and a storage manager, then drop a database, and then perform a restore with the onbar -r command, the database remains dropped. The restore salvages the logs and the logs contains the DROP DATABASE statement. When the logs are salvaged, or replayed, the database is dropped. If you receive these message, you can take steps to solve the problem.
      - No dbspaces or blobspaces during a backup or restore
        If the emergency boot file, ixbar.servernum, does not have the correct entries for objects in the backup, the message There are no DB/BLOBspaces to backup/restore appears in bar_act.log file during a restore started with the onbar -r or onbar -r -w command.
      - Changing the system time on the backup system
        In some circumstances when there is a problem with the system time, fails with the message There are no storage spaces or logical logs to backup or restore. If this occurs, you can take steps to solve the problem.
    - Migrate data, servers, and tools
    - GLS support
      This appendix contains information about using Global Language Support (GLS) with .
- Enterprise Replication
  The describes the concepts of data replication using HCL Informix® Enterprise Replication, including how to design your replication system, as well as administer and manage data replication throughout your enterprise.
Migrating and upgrading
You can upgrade to the 15.0.0 release of HCL Informix® or migrate from other database servers to Informix. Upgrading is an in-place migration method that uses your existing hardware and operating system software. Some changes to the Informix database server can affect upgrading from a previous release.
Client APIs and tools
You can use the HCL Informix® implementation of client APIs to develop applications for Informix database servers.
Embedding Informix®
When you embed HCL Informix®, you can use enterprise-class high-availability and high performance with embeddability features such as easy programmability, a small disk and memory footprint, and silent deployment.
Extending Informix®
Beyond standard relational database objects, HCL Informix® can be extended to handle specialized data types, access methods, routines, and other objects. Informix includes many built-in extensions that are fully integrated in the database server. Informix also provides modules, which are packages of extended database objects for a particular purpose and that are installed separately from the database server. Alternatively, you can create your own user-defined objects for Informix.
Data warehousing
In addition to designing and implementing Informix® dimensional databases, you can use tools to create data warehouse applications and optimize your data warehouse queries.
Designing databases
The first step in creating a relational database is to construct a data model, which is a precise, complete definition of the data you want to store. After you prepare your data model, you must implement it as a database and tables. To implement your data model, you first select a data type for each column and then you create a database and tables and populate the tables with data. You can also implement fragmentation strategies and control access to your data.
JSON compatibility
You can use the popular JSON-oriented query language created by MongoDB to interact with data stored in HCL Informix®.
Security
You can secure your Informix® database server and the data that is stored in your Informix databases. You can encrypt data, secure connections, control user privileges and access, and audit data security.
SQL programming
You can use the HCL Informix® implementation of the SQL language to develop applications for Informix database servers.
Troubleshooting HCL Informix®
Several troubleshooting techniques, tools, and resources are available for resolving problems that you encounter in your HCL Informix® database server environment.

Troubleshooting some backup and restore errors

This appendix lists some error and informational messages that you can receive during a backup or restore, describes under what circumstances the errors might occur or the message might appear, and provides possible solutions or workarounds.

Find errors by viewing the activity log

The database server does not show errors in standard output (stdout) if an error occurs when you use onbar -b to back up storage spaces or onbar -r to restore storage spaces. Therefore, when you use onbar -b or onbar -r, you must check information in the activity log (bar_act_log). As backs up and restores data, it writes progress messages, warnings, and error messages to the bar_act.log.