New to FreeBSD - Some questions

[Wojciech Puchar]

> +-------------------------------+
> |            Stripe             |
> +---------------+---------------+
> |    Mirror1    |    Mirror2    |
> +-------+-------+-------+-------+
> | Disk1 | Disk2 | Disk3 | Disk4 |
> +-------+-------+-------+-------+
true.
but there are mirror/stripe layout that is quite better in performance 
than yours where writes are not dominant ;)