Installing Oracle 12c R1 on Oracle Linux 7 with Oracle ASM and Oracle Restart

PREINSTALLATION

Checking Hardware and Memory Configuration Grid Infrastructure 12c r1 -link
Setting system parameters with yum -link
Creating oracle user and groups -link
Setting Oracle Environment  -link

Disable Firewall on Oracle Linux 7 -link
NTP configuration on Oracle Linux 7 -link
ASM - Using UDEV SCSI Rules Configuration for ASM disks -link

DBCA