[Oracle RAC 12.1 Installation on Oracle Linux 6.7 (ISCSI + ASM)]: Post-installation tasks

Server:

rac1, rac2

$ vi /etc/oratab

Replace:

+ASM1:/u01/app/grid/12.1:N
-MGMTDB:/u01/app/grid/12.1:N
rac12:/u01/app/oracle/product/rac/12.1:N

with

+ASM1:/u01/app/grid/12.1:Y
-MGMTDB:/u01/app/grid/12.1:Y
rac12:/u01/app/oracle/product/rac/12.1:Y

I honestly don’t know how ASM fits in here and what MGMTDB is.