问题:ORA-00845: MEMORY_TARGET not supported on this system
原因:MEMORY_TARGET的值大于/dev/shm
/dev/shm =3.9 G < MEMORY_TARGET 4G
[oracle@d4cdb dbs]$ df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/rhel-root 46G 19G 27G 43% / devtmpfs 3.8G 0 3.8G 0% /dev tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 3.9G 13M 3.8G 1% /run tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup /dev/sr0 4.4G 4.4G 0 100% /mnt/cdrom /dev/sda1 1014M 170M 845M 17% /boot .host:/ 1.9T 1.4T 457G 76% /mnt/hgfs tmpfs 781M 4.0K 781M 1% /run/user/42 tmpfs 781M 36K 781M 1% /run/user/1001
解决:增加/dev/shm
[root@d4cdb ~]# mount -o size=8G -o nr_inodes=1000000 -o noatime,nodiratime -o remount /dev/shm [root@d4cdb ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/rhel-root 46G 19G 27G 43% / devtmpfs 3.8G 0 3.8G 0% /dev tmpfs 8.0G 0 8.0G 0% /dev/shm tmpfs 3.9G 13M 3.8G 1% /run tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup /dev/sr0 4.4G 4.4G 0 100% /mnt/cdrom /dev/sda1 1014M 170M 845M 17% /boot .host:/ 1.9T 1.4T 457G 76% /mnt/hgfs tmpfs 781M 4.0K 781M 1% /run/user/42 tmpfs 781M 36K 781M 1% /run/user/1001 [root@d4cdb ~]# vi /etc/fstab [root@d4cdb ~]# mount -a [root@d4cdb ~]# cat /etc/fstab |grep -i shm tmpfs /dev/shm tmpfs defaults,size=8G 0 0