Oracle Solution for Error ora-00845

ORA-00845: MEMORY_TARGET not supported on this system

What triggered the Error:

The MEMORY_TARGET parameter was not supported on this operating system or /dev/shm was not sized correctly on Linux.

What should we do to fix it:

Refer to documentation for a list of supported operating systems. Or, size /dev/shm to be at least the SGA_MAX_SIZE on each Oracle instance running on the system.