If you’re using a Debian based distro, you can search through contents of packages to see if there’s a conflict:

E.g. apt-file search /usr/bin/sh

How is this malicious?

Investments are bound to risk. And taking a risk must be rewarded.

Err, no. Risk taking could be rewarding, but it inherently should not be guaranteed to be.

You could read the docs.

What you’re trying to use is “hardware” RAID. Using hardware RAID is generally a bad idea. If you’re using Linux, use software RAID instead.

Also consider using Btrfs, it will make having a RAID setup even easier.