Extending your zfs pool with multiple devices

[Michal]

What is really odd is I see your replies but not my original post, how 
very strange??

Thank you for all of your assistance. I would like to move to being able 
to build a cheap san-like storage area for a DB, I don't know how well 
it would work but I'd like to try it anyway since things like HP MSA's 
are hugely expensive.

I like these suggestions of filling a second box and connecting this to 
the 1st box using these expanders and port replicators. I don't really 
need as fast  as I can get as this is not a high-use DB backend or many 
user file server. A few users here and there but nothing that worries me 
about the bottleneck caused by these replicators. This way is ALOT 
better then my system of trying to export iscsi disks or something like 
that. This way I can add create a second box then have a cable into an 
expander or replicator on the 1st box, a 3rd box could then be added to 
the expander/replicator at a later date. There is a limit on how far 
this could go realistically, but I like this way. I could go further by 
adding SSD's for the L2ARC and ZIL if I wanted to. I found zfsbuild.com 
to be a quite nice site/blog

Thanks for all your help