Extended Parallel Server extends DSA to provide a high degree of scalability for decision-support applications and growing workloads. A key element for scalability is the parallel execution that the parallel database query (PDQ) and table fragmentation features provide. PDQ and table fragmentation can improve performance dramatically when the database server processes queries that access data which resides on disks located on different coservers.
For more information on these features, refer to Table Fragmentation and PDQ. For tuning and performance information, refer to your IBM Informix: Performance Guide.
Extended Parallel Server provides near linear scalability across a wide variety of computing platforms and workloads.
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