[OmniOS-discuss] 8TB Seagates under load = PANIC?

[Dan McDonald]

> On Mar 17, 2017, at 7:14 AM, Artem Penner <apenner.it at gmail.com> wrote:
> 
> root at zns2-n2:/root# zfs list pool5/fs1
> NAME        USED  AVAIL  REFER  MOUNTPOINT
> pool5/fs1  3.90T  44.1T  3.90T  /pool5/fs1
> 
> root at zns2-n2:/root# zfs mount pool5/fs1
> cannot mount 'pool5/fs1': mountpoint or dataset is busy
> root at zns2-n2:/root# zfs umount pool5/fs1
> cannot unmount 'pool5/fs1': not currently mounted

What's pool5/fs1's actual mount point?  ("zfs get mountpoint pool5/fs1")?  Does that directory contain something?  I'd quiesce any process that writes there, and make sure it didn't race to write there while you were mounting pool5/fs1.

Dan