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AdministeringIn addition to administering the database server, you can tune performance, replicate data, and archive data.
System administrationThese topics contain concepts, procedures, and reference information for database and database server administrators to use for managing and tuning HCL Informix® database servers.
Administrator's ReferenceThe 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.
Appendixes
Messages in the database server logUnnumbered messages are printed in the database server message log (online.log). The error messages include corrective actions.
Messages: G-H-I
I/O function chunk mm, pagenum nn, pagecnt aa --> errno = bb.

I/O `function` chunk `mm`, pagenum `nn`, pagecnt `aa` --> errno = `bb`.

Cause

An operating-system error occurred during an attempt to access data from disk space. The operating-system function that failed is defined by function. The chunk number and physical address of the page where the error occurred are displayed as integers. The pagecnt value refers to the number of pages that the thread was attempting to read or write. If an errno value is displayed, it is the number of the operating-system error and might explain the failure. If function is specified as bad request, some unexpected event caused the I/O attempt on an invalid chunk or page.

Action

If the chunk status changes to D, or down, restore the chunk from its mirror or repair the chunk. Otherwise, perform a data restore.

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I/O function chunk mm, pagenum nn, pagecnt aa --> errno = bb.

Cause

Action

I/O `function` chunk `mm`, pagenum `nn`, pagecnt `aa` --> errno = `bb`.