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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.
Configuring and monitoring Informix®
Disk Structures and Storage
Dbspace Structure and Storage
Structure of a Regular Dbspace
Structure of an Additional Dbspace Chunk

Structure of an Additional Dbspace Chunk

You can create a dbspace that contains more than one chunk. The initial chunk in a dbspace contains the tblspace tblspace for the dbspace. Additional chunks do not. When an additional chunk is first created, it contains the following structures:

Two reserved pages
The first chunk free-list page
Unused pages

Additional Dbspace Chunk illustrates the structure of all additional chunks in a dbspace. (The structure also applies to additional chunks in the root dbspace.)

begin figure description - The paragraph that precedes this figure describes the content of the figure. - end figure description — Figure 1: Additional Dbspace Chunk

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