How do I know if my cluster is disabled ?

Oracle has scls_scr directory at /etc/oracle path. We can check about enable/disable startup status of the Oracle Clusterware daemons at crsstart file in /etc/oracle/scls_scr/<hostname>/root/ path.

root@rac1# cat /etc/oracle/scls_scr/rac1/root/crsstart

enable

root@rac1# crsctl disable crs

root@rac1# cat /etc/oracle/scls_scr/rac1/root/crsstart

disable

after disabled by "crsctl disable crs", crsstart file was changed be "disable"

root@rac1# crsctl enable crs

root@rac1# cat /etc/oracle/scls_scr/rac1/root/crsstart

enable

after enabled by "crsctl enable crs", crsstart file was changed be "enable"