Kernel variants are different variants of the kernel of the database system. They differ in terms of which logs and runtime checks are performed in regular database operations.
When the database is started, restarted, switched to the ADMIN operational state, or switched to the ONLINE operational state, you can specify explicitly which kernel variant you want the database instance to use.
The following kernel variants are available:
Kernel Variant |
Properties |
fast |
System
default |
quick |
A kernel variant that includes additional logs and runtime checks |
slow |
A kernel variant that includes highly comprehensive logs and runtime checks |
Do not use the quick and slow kernel variants in production operation of the database. These kernel variants are much slower than the fast kernel variant due to the additional logs and runtime checks, and should only be used by Support.
See also:
Database Manager CLI, Displaying the Database Kernel Variant