Here is an issue I have been thinking about recently: how do you want tohandle ZFS in a SAN environment, especially one in with relatively lowdata rates such as, oh, anything based on gigabit Ethernet?

The problem is that ZFS and SANs have a small conflict. ZFS wants totalk to raw disks and do RAID internally so that it can do its specialmagic, but SANs want you to let the backends do as much RAID work aspossible to preserve overall bandwidth. If you do mirroring in ZFS

The corollary of the funding capture issue isthat the only way for an anti-spam scheme involving money to work is forthe people receiving email to pay for it; only then are the economicinterests kept aligned. Naturally this is not very popular with peoplegetting spammed, which helps to explain the enduring popularity ofproposed schemes where someone else pays.

Unfortunately, this creates a perverse incentive that's familiarfrom the anti-virus world: if spam goes away, so do the anti-spamorganizations. Their

Once upon a time, we had a machine that wound up with a default routethat pointed straight to the local network, basically what you'd get ifyou did route add default dev eth0 .

(Disclaimer: I have no idea if your system would actually accept that route command or if it would demand a gateway.)

That this worked to some degree is not too surprising in retrospect;there actually is a straightforward meaning to this, namely to arp for alldestinations on the local Ethernet, and that