Home
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.
High-Performance Loader User's Guide
The describes how to use the HCL Informix® to load and unload large quantities of data efficiently to or from Informix databases.
Load data to a database table
This section describes the load process.
The Load Job windows
You can create, save, and run a load job from the Load Job Select window and the Load Job window. The Load Job window visually represents the various components of a load. After you select the components, you can save the load job for future use or run it immediately.
Run the load job
Problems during a load job
If you encounter any problems during the load, examine the various files that onpload creates.

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.
  - List of utilities
    HCL Informix® includes utilities and applications that you can use to perform administrative tasks and capture information about configuration and performance.
  - Administrator's Guide
    The Informix® Administrator's Guide provides the information required to administer HCL Informix.
  - Administrator's Reference
    The Informix® Administrator's Reference includes comprehensive descriptions of HCL Informix configuration parameters, the system-monitoring interface (SMI) tables in the sysmaster database, the syntax of database server utilities such as onmode and onstat, logical-log records, disk structures, event alarms, and unnumbered error messages.
  - DB-Access User's Guide
    The Informix® DB-Access User's Guide describes how to use the DB-Access utility to access, modify, and retrieve information from Informix database servers.
  - High-Performance Loader User's Guide
    The describes how to use the HCL Informix® to load and unload large quantities of data efficiently to or from Informix databases.
    - High-Performance Loader overview
    - Examples of loading and unloading jobs using the ipload utility
      This section shows how the components of the fit together. The section includes a step-by-step tutorial with two examples (for a load and an unload job) that use the ipload graphical user interface (GUI).
    - The ipload utility windows
      This section contains information about using the ipload utility.
    - Define HPL projects
      This section explains how to create a project and how projects are related. The individual components that you store in projects are described in later sections.
    - Configure the High-Performance Loader
      This section describes the process of configure the .
    - Define device arrays
      This section describes how to define and use device arrays with the .
    - Define formats
      This section describes the formats that the provides and shows how to prepare and edit the format component.
    - Define queries
      This section describe how to define queries including how to create, edit, and export and import queries.
    - Define maps
      This section describes how to define maps with the . It also describes the options that are available for defining maps.
    - Define filters
      This section describes how to create, edit, and delete filters.
    - Unload data from a database
      This section describes the Unload Job window.
    - Load data to a database table
      This section describes the load process.
      - Load jobs
        A load job loads data from a set of one or more files into a single database table. A record format, which defines each field of a record, specifies the layout of the input data. A load map specifies how the record fields are mapped to the columns of the target table. During the load process, the onpload utility converts data from record field to table column.
      - Components of the load job
        The lets you define the individual components of a data load individually or lets you use the generate option to define the components automatically.
      - The Load Job windows
        You can create, save, and run a load job from the Load Job Select window and the Load Job window. The Load Job window visually represents the various components of a load. After you select the components, you can save the load job for future use or run it immediately.
        Creating a load job
        Use the Load Job Select window to create a load job or select an existing job to edit.
        Run the load job
        Make a level-0 backup
        Express-mode loads do not log loaded data. After an express-mode load, onpload sets the table to read-only as a protective measure. To make the table available for write access, you must do a level-0 backup for all the dbspaces that the fragments of the loaded table occupy. The level-0 backup allows data recovery for the table in case of future database corruption.
        Problems during a load job
        If you encounter any problems during the load, examine the various files that onpload creates.
        Specify to read to the end of the tape
        From the Load Job Select window, you can specify to read from the tape until the end of the device with the Write/read to/from tape until end of device check box. When a tape device is empty, you are prompted to provide a new tape, until the load job is complete.
        The command-line information
        If you select an existing job in the Load Job Select window, the Command Line text box shows the onpload command that ipload generated for that load job.
        Changing the load options
        Editing a load job
        After you create and save a load job, you can later return and modify that load job.
      - Generate options for a load job
        Instead of individually creating the components that are required on the Load Job window, you can use the Generate options to create a load job.
    - The Generate options of the ipload utility
      This section describes the Generate options for the ipload utility.
    - The HPL browsing options
      This section describes the browsing options that are available for the .
    - Manage the High-Performance Loader
    - The onpload utility
      This section describes how to use the onpload utility.
    - The onpladm utility
      This section describes how to use the onpladm utility.
    - Appendixes
      This section contains additional reference information.
  - Performance Guide
    The Informix® Performance Guide describes how to configure and operate your HCL Informix database server to improve overall system throughput and to improve the performance of SQL queries.
  - SNMP Subagent Guide
    The describes the Simple Network Management Protocol (SNMP) and the software that you need to use SNMP to monitor and manage HCL Informix® database servers and databases.
  - InformixHQ Guide
    InformixHQ is a modern web console for visualizing, monitoring, and managing your Informix server instances. It is purpose built for ease-of-use, scaling out, and optimizing DevOps needs. It provides critical performance management capabilities, monitoring how key performance metrics are changing over time and tracking how efficiently Informix is running your workload even when you’ve stepped away from your screen. Its monitoring system feeds directly into a customizable alerting system so you can be immediately alerted via email, Twilio, or PagerDuty whenever an issue occurs on one of your Informix database server instances. InformixHQ is designed to be scalable to efficiently manage and monitor as many Informix database server instances as you need. Moreover, it's a tool that can be shared by the DBAs, the app developers, the ops engineers, and management and accessed from any desktop, laptop, or mobile device. InformixHQ is the centralized hub for graphical monitoring, alerting, and administration of your 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.
- 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.

Problems during a load job

If you encounter any problems during the load, examine the various files that onpload creates.

Important: Because of operating-system limitations, the onpload utility cannot load successfully from a file (on disk) that is larger than 2 GB on a platform that is less than a 64-bit platform. If you try to read a file that is larger than 2 GB, onpload HPL fails only after it processes the first 2 GB of data. The HPL log file reports the following error:

Cannot read file /some_dir/a_long_file - aio error code 27