ZPool not mounting at boot

[J. Paul Bissonnette]

On Sun, 14 Feb 2021 01:59:31 +0100
Liam Proven <lproven at gmail.com> wrote:

> However, mine works, and I'm happy with it. It's silent, it was cheap
> to build, reliability and performance are passable -- OK for home use.
> 

Have you published any where how to build one? 
A Synology DS1813+ I have dies and their "Support team" politely
informed me that after the warranty period there is no parts, no
service and absolutely no support. Now I have an almost mint paper
weight sans Mobo.