Are Laptops with 2 drive bays limited to 17 inch models?

[m654321]

You may already know.?, Out of the box the only "buntu" based distro that I'm aware of that offers the above is "Ubuntu Server"
To achieve this "striping" you need to use RAID, either a hardware RAID controller, or Software.
In the case of "buntu" based distros, software raid uses "mdadm", not installed by default, but is in repo.

I have been playing with RAID 10, 4 disks, but I keep failing at the last step for some reason [img alt=]https://www.freecinema2022.gq/forums/Smileys/default/sad.gif[/img]
I did get 1 method going in a Virtualbox, but it had a single point of failure by having an extra /boot partition on 1 disk.
It should be possible with latest GRUB to boot from RAID array, but I seem to be missing something.

Thanks Dave - I didn't know that - that's one misconception sorted for me...   So for example, from what you've just said, it therefore doesn't make any difference to PC speed (under a straightforward non-RAID setup) if the OS is installed either (1) entirely as /root on a single physical drive or, (2) with /root on one HDD and a separate /home on a second HDD, i.e. without RAID the two HDDs unable to work simultaneously to effect an increase in PC speed.

Mike