ORA-00845: MEMORY_TARGET not supported on this system
程序员文章站
2022-06-28 11:58:20
在SQL> startup 时,出现错误ORA-00845 ORA-00845: MEMORY_TARGET not supported on this system ......
环境:oracle 121020
内存:64g
场景:
在sql> startup 时,出现错误ora-00845
ora-00845: memory_target not supported on this system
回顾安装过程,在设置内存大小的时候,没有使用默认的40%(64g*0.4=25.6g),而是手动调整到了60%(64g*0.4=38.4g);
这个错误一般是内存不够的意思,主要是tmpfs(64g默认一半是32g)太小了
修改tmpfs的大小即可
# vi /etc/fstab
tmpfs /dev/shm tmpfs defaults,size=48g 0 0
# mount -o remount /dev/shm
这是使用 df -h会发现tmpfs的大小变成48g,这时数据库就可以起来了
参考:
1、https://www.cnblogs.com/killkill/archive/2010/09/10/1823690.html
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