number of engines at startup

number of engines at startup is used exclusively during start-up to set the number of engines brought online.

It allows great flexibility, subject to the restriction that you cannot set the value of number of engines at startup to a value greater than the number of CPUs on your machine, or to a value greater than the configuration of max online engines.

Summary Information
Default value	1
Range of values	1 – number of CPUs on machine
Status	Static
Display level	Basic
Required role	System administrator
Configuration groups	Java Services, Memory Use, Processors

Note: When configured for threaded mode, SAP ASE ignores the number of engines at startup configuration parameter. In threaded mode, SAP ASE uses the size of the defined thread pools to determine the number of online engines at startup. If the configuration file contains no thread pool configuration information (for example, while you are upgrading from an earlier version), SAP ASE uses the existing value for number of engines at startup to determine the size the default engine pool.

Users who do not intend to bring engines online after start-up should set max online engines and number of engines at startup to the same value. A difference between number of engines at startup and max online engines wastes approximately 1.8 MB of memory per engine.

SAP ASE allows users to take all engines offline, except engine zero.