Not all ZFS pools mounting at boot

[Glen Barber]

On Wed, Mar 09, 2016 at 05:07:57AM +0000, Glen Barber wrote:
> On Wed, Mar 09, 2016 at 03:54:07PM +1100, Morgan Reed wrote:
> > Hi All,
> > 
> >     Been fighting this one for a while and I figure it's time to take it to
> > the brainstrust.
> > 
> > I've recently added a third storage array to my NAS, it's a RAID-Z pool the
> > same as the other two arrays in the box, the new array isn't mounting at
> > boot, I have to manually import it every time.
> > 
> > Done some digging around online but everything I've found has come down to
> > the person not having zfs_enable=YES in rc.conf, obviously as two of my
> > three pools are mounting at boot this is not my issue.
> > 
> > Only oddity I've found is that, the output of zdb does NOT show the third
> > storage pool, although it is presently imported and mounted.
> > 
> > I am mounting the third pool under an alternate root, if that has any
> > bearing on things.
> > 
> > Any thoughts?
> > 
> 
> I have similar structural layout, and have hit this exactly one time.
> (On -CURRENT, not -STABLE, though.)
> 
> The problem for me to further diagnose the issue was, manually importing
> the pool and repeated subsequent reboots did not make the problem
> reappear.  Additionally, the system was up long enough for any logs to
> be irrelevant - mainly the second pool in my case is used for VM disks
> and other "not a huge problem if it does away" dataset.
> 
> So first my question is, how are you mounting the third pool in your
> case (assuming you are doing so)?
> 

To be clear on my question, I mean this in the sense of "when you
realize it has not mounted."

Glen

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