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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.
High-availability cluster configuration
Shared disk secondary servers
Flow control for shared-disk secondary serversFlow control provides a way to limit log activity on the primary server so that shared-disk (SD) secondary servers in the cluster do not fall too far behind on processing transactions.

Flow control for shared-disk secondary servers

Flow control provides a way to limit log activity on the primary server so that shared-disk (SD) secondary servers in the cluster do not fall too far behind on processing transactions.

Set the SDS_FLOW_CONTROL configuration parameter on the primary server to enable flow control. All SD secondary servers in the cluster are affected by the primary server's SDS_FLOW_CONTROL configuration parameter setting. When flow control is active, users connected to the primary server may experience slower response time.

Logs are always sent to the SD secondary server in the order in which they were received.

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