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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.
Administrator's GuideThe HCL OneDB™ Administrator's Guide provides the information required to administer HCL OneDB™.
Disk, memory, and process management
Virtual processors and threadsThese topics describe virtual processors, explain how threads run within the virtual processors, and explain how the database server uses virtual processors and threads to improve performance.
Virtual processor classesEach class of virtual processor is dedicated to processing certain types of threads.
Tenant virtual processor classTenant virtual processor classes are specific to tenant databases. If you configure multitenancy for your HCL OneDB™ instance, you can specify that session threads for tenant databases are run in tenant virtual processors instead of CPU virtual processors.

Tenant virtual processor class

Tenant virtual processor classes are specific to tenant databases. If you configure multitenancy for your HCL OneDB™ instance, you can specify that session threads for tenant databases are run in tenant virtual processors instead of CPU virtual processors.

You can create a tenant virtual processor class by defining the class and the number of virtual processors when you create a tenant database. You can assign a tenant virtual processor class to multiple tenant databases. Set the VP_MEMORY_CACHE_KB configuration parameter to create a private memory cache for each CPU virtual processor and tenant virtual processor.

A tenant virtual processor class is automatically dropped when all tenant databases that include the virtual processor class in their definitions are dropped.