Suppose that you have some ZFS-based NFS fileservers , perhaps in some sort of failover configuration,and that you want to export some pools from one. So you do:

# zpool export tankcannot unmount '/x/y': Device busy

The usual set of tools don't show any local processes using thefilesystem (not that there really are any, the server being purely anNFS server), and there's no actual NFS activity. In short: ratherpuzzling. Also annoying, since

Since I had a Mini 12 around and I'd previously done similar measurements with an Asus Eee PC, hereare some measurements about what seems to draw power on a Dell Mini 12.The necessary disclaimers are that all of these measurements are madewith a power meter while the Mini 12 was on wall power, running Dell'sversion of Ubuntu.

(Ubuntu exposes a lot more controls for this than Asus's Eee setup, soI suspect you could duplicate these results on battery power or

I have an ASUS Eee PC (one of the original small ones) and I've recentlybeen playing around with a loaner Dell Mini 12. Since it has to go back,now seems like a good time to do a short comparative review.

From my perspective, the Mini 12 has only three real advantagesover the Eee PC: it has a significantly larger screen, it suspendsto disk because it has a hard drive instead of a small SSD, and itruns a more or less standard Ubuntu