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Date: Thu, 19 Feb 2015 11:29:38 +0100
From: Michael Fuckner <michael@fuckner.net>
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Subject: Creating zpool on NVMe Disks takes forever
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Hi,

I have two NVMe PCIe Cards in a System running 10.1-p5.

root@s4l:~ # ll /dev/nv*
crw-r-----  1 root  operator  0x63 Feb 19 08:51 /dev/nvd0
crw-r-----  1 root  operator  0x67 Feb 19 08:51 /dev/nvd1
crw-------  1 root  wheel     0x30 Feb 19 08:51 /dev/nvme0
crw-------  1 root  wheel     0x5c Feb 19 08:51 /dev/nvme0ns1
crw-------  1 root  wheel     0x31 Feb 19 08:51 /dev/nvme1
crw-------  1 root  wheel     0x62 Feb 19 08:51 /dev/nvme1ns1

I can partition/format the disks with UFS and access them without 
issues, but I can't create a zpool. It simply takes forever when I enter 
the following command:

zpool create tank0 mirror nvd0 nvd1


Any idea what to check?

Regards,
  Michael!