How to quickly get started using RAID?

[kung foo man]

I think it is basically like formatting a new disk.
You can clone from your original disk to your new virtual disk.
The raid card will keep both disks (under the virtual disk) in sync.

Thank you a lot, Mitch! Your descriptions help me to understand RAID hardware a bit better.

Please use software raid. For linux, try ZFS. For windows, try storage spaces.

Nice, I already use ZFS, so I guess I just need to figure out how to put it in RAID1 mode...

https://pve.proxmox.com/wiki/ZFS_on_Linux

They also talk about need for: https://en.wikipedia.org/wiki/ECC_memory

And a lot of that RAM, because it helps the caching etc...

Do you use RAID1 with two disks always? Contemplating RAID10 with 4 disks... speed + safety... speed isn't even that important to me, things shall just work... and speed critical applications can go in RAMFS/TMPFS anyway.

HW raid cards are so proprietary that if they fail, you gotto find the same card again to save your data. With software raid, just get the same software again.

Right, I developed that impression aswell, they will format the disk as they please and I will be stuck on proprietary hardware and file formats etc.

For interfaces, get a hba adapter, or flash some old hw raid card to a hba firmware (i got a spare card if you want one)

Do I need a HBA adapter for additional storage or what is it good for?