After booting it takes a good 5 minutes for my pool to *mount*. During this time zpool status reports the pool to be online. Scrubs find no errors. Trying to run zpool export/import during this time either leads to a panic or the pool successfully exporting, then importing again and taking 5 minutes to mount. I'm running 1.3.2-RC1 but I've been having this issue since 1.3.0 or 1.3.1. OS X 10.10.3 on a hackintosh.
pool: Blitz
state: ONLINE
scan: scrub repaired 0 in 8h40m with 0 errors on Fri May 1 18:14:57 2015
config:
NAME STATE READ WRITE CKSUM
Blitz ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
PCI0@0-SAT0@1F,2-PRT1@1-PMP@0-@0:1 ONLINE 0 0 0
PCI0@0-SAT0@1F,2-PRT0@0-PMP@0-@0:1 ONLINE 0 0 0
errors: No known data errors
This is during the 5 minutes waiting for it to mount.