Step by step - ASM Architecture, ASM Instance, ASM Diskgroups, ASM Disks

In the video we can learn below points in detail:

ASM Architecture
ASM instance
parameters in the AMS parameter file
understaning of ASM_POWER_LIMIT and disk Rebalancing
understanding the ASM_Diskstring parameter
ASM_diskgroups and its it redundency levels
Status of ASM disks
startup sequecne of an ASM Instance

Step by step - RAID, ASM Introduction, differences and its Benefit

This is the best video I have seen on ASM so just sharing it. Explanation is very good.

Session - 1: In this session we can learn what are the different RAID levels and how it works.
                    It also explains what are the benefits of ASM and its different redundancy levels.