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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 OneDB™ database servers.
Performance GuideThe HCL OneDB™ Performance Guide describes how to configure and operate your HCL OneDB™ database server to improve overall system throughput and to improve the performance of SQL queries.
Fragmentation guidelinesOne of the most frequent causes of poor performance in relational database systems is contention for data that resides on a single I/O device. Proper fragmentation of high-use tables can significantly reduce I/O contention. These topics discuss the performance considerations that are involved when you use table fragmentation.
Monitoring Fragment UseOnce you determine a fragmentation strategy, you can monitor fragmentation.

Monitoring fragment use

Once you determine a fragmentation strategy, you can monitor fragmentation.

You can monitor fragmentation in the following ways:

Run individual onstat utility commands to capture information about specific aspects of a running query.
Run a SET EXPLAIN statement before you run a query to write the query plan to an output file.

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