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ORA-00821 ORA-01034 ORA-27101, SGA_target need to be increased (Doc ID 815426.1)

Last updated on FEBRUARY 20, 2019

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
***Checked for relevance on 27-Apr-2012***
***Checked for relevance on 27-Augr-2014***


Migrated a database server from a server with 8 CPU's to a server with 128 (virtual) CPU's - that is, 2 CPU's, each with 8 cores which each handled 8 threads = 2x8x8 = 128.

So Solaris (on SPARC T series) is presenting Oracle with 128 CPU's. This makes Oracle adjust it's memory demands upwards, meaning that before the databases can ran fine with 320 MB of ram (sga_target) now needs to have up around 800-900 MB of RAM?

Is there anyway to minimize the memory usage?


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