MEMORY_TARGET not supported on this system

修改 memory_max_target 为1G后,重启数据库出现以下错误提示:
SQL> startup
ORA-00845: MEMORY_TARGET not supported on this system

修改tmpfs,增加size=1024M
[root@demo ~]# cat /etc/fstab
LABEL=/ / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
tmpfs /dev/shm tmpfs defaults,size=1024M 0 0

重新加载:
umount /dev/shm
mount /dev/shm

重新检查:
[root@demo ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 32G 16G 15G 51% /
/dev/sda1 99M 12M 83M 13% /boot
tmpfs 1.0G 523M 502M 52% /dev/shm

可正常启动数据库.

参考:
http://2358205.blog.51cto.com/2348205/1001537

MEMORY_TARGET not supported on this system

原文：http://www.cnblogs.com/bowshy/p/3536263.html