After Oracle 18c Automatic Storage management software is completed, i tried to start ASM instance but i got ORA-00845:MEMORY_TARGET not supported on this system error.
[[email protected] ~]$ sqlplus / as sysasm SQL*Plus: Release 126.96.36.199.0 - Production on Tue Feb 19 12:59:47 2019 Version 188.8.131.52.0 Copyright (c) 1982, 2018, Oracle. All rights reserved. Connected to an idle instance. SQL> startup ORA-00845: MEMORY_TARGET not supported on this system
To solve this error you need to mount tmpfs like below.
[[email protected] oradata]# mount -t tmpfs shmfs -o size=4096m /dev/shm [[email protected] oradata]# [[email protected] ~]$ df -h /dev/shm Filesystem Size Used Avail Use% Mounted on tmpfs 3.9G 119M 3.9G 1% /dev/shm
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