On Fri, 8 May 2015, Clug wrote:

> And again, I wish I remembered how I got zfs to go from "sdi" to 
> "ata-WDC_WD30EFRX-68AX9N0_WD-WMC1T2556461". zfs recommended I do it, but I 
> forget how/why/etc...

I figured that part out. You zpool export the pool, and then zpool import 
-d /dev/disk/by-id the pool.

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