I pulled the SAS card and the drives and attached them to my machine.
I booted FreeBSD 10.2 to LiveCD and I can see that it detects the card as mpt0.
It detects the drives as da0 and da1. And that's where the goodness stops ...
zfs list and zpool list both return with nothing available.
gpart show shows kind of a strange partitioning, and the partitions on one disk are labeled as linux-raid and the other disk as !191.
I don't even know where to start to try to begin hunting down what I need to do.
I can probably resurrect the old server, but it's kind of painful as I only have one SAS card and I have to move it back and forth between the machines.
Let me know what information I need to cough up from the old machine from the command line and I'll be happy to do it.