Configuration Restrictions

This section provides a list of software and hardware configuration restrictions that apply to Sun Cluster HA for Informix. Use the restrictions in this section to plan the installation and configuration of Sun Cluster HA for Informix.

Your data service configuration might not be supported if you do not observe these restrictions.

For restrictions that apply to all data services, see the Sun Cluster Release Notes for Solaris OS.

Restriction for Supported Configurations of Sun Cluster HA for Informix

Sun Cluster HA for Informix data service can be configured only as a failover service. Single or multiple instances of Informix Dynamic Server can be deployed in the cluster. Informix Dynamic Server can be deployed in the global zone or non-global zone.

Restriction for the Location of Informix Files

You need to keep these restrictions in mind while planning the installation and configuration of Sun Cluster HA for Informix.

• Informix binary files – You need to place the INFORMIXDIR directory on a shared storage such as a cluster file system or a highly available local file system.

  Alternatively, you can install Informix locally on each node. In this case, the INFORMIXDIR directory will reflect a local file system.

  If you decide to install Informix locally on each node, you must ensure that the ONCONFIG and INFORMIXSQLHOSTS files are kept in synchronization across the cluster nodes.

• Informix database files – You must ensure that the Informix database files are placed on a shared storage. You can use a highly available local file system, cluster file system, or raw devices.