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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 GuideThe Informix® Administrator's Guide provides the information required to administer HCL Informix®.
High availability and scalabilityA successful production environment requires database systems that are always available, with minimal if any planned outages, and that can be scaled quickly and easily as business requirements change.
Cluster administration
Performing basic administration tasks
Monitor HDR status
Command-line utilities

Command-line utilities

The header information displayed every time you run onstat has a field to indicate if a database server is operating as a primary or secondary database server.

The following example shows a header for a database server that is the primary database server in a replication pair, and in online mode:

HCL Informix Dynamic Server Version 11.50.UC1   -- online(Prim) -- Up 45:08:57

This example shows a database server that is the secondary database server in a replication pair, and in read-only mode.

HCL Informix Dynamic Server Version 11.50.UC1     -- Read-Only (Sec) -- Up 45:08:57

The following example shows a header for a database server that is not involved in HDR. The type for this database server is standard.

HCL Informix Dynamic Server Version 11.50.UC1     -- online -- Up 20:10:57

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