-iqpartition iqsrv16 Server Option

Sets the number of IQ main and temp buffer cache partitions.

Syntax

-iqpartition num

Remarks

Specifies the number of partitions in the IQ main and temp buffer caches. Must be a power of 2. By default, allowed values are: 0 (default), 1, 2, 4, 8, 16, 32, 64, 128, 256. By default, SAP Sybase IQ computes the number of partitions automatically as number_of_cpus/8, rounded to the nearest power of 2, up to a maximum of 64. You may be able to improve performance by adjusting the number of cache partitions. The -iqpartition switch sets this value for an SAP Sybase IQ server, and overrides the value set by the Cache_Partitions database option.
  • Excludes jConnect™ for JDBC™ system objects from the database. To use the jConnect JDBC driver to access system catalog information, you need jConnect catalog support (installed by default). When you specify this option, you can still use JDBC, as long as you do not access system information. You can add jConnect support at a later time using the ALTER DATABASE statement.