I've been considering writing a fully asynchronous ATA over Ethernettarget driver (I'm not entirely happy with the current one and itsperformance). If Linux asynchronous IO worked on sockets (specificallyraw network sockets), there is a nice simple design where you just setup a pool of buffers and then cycle each one through a little statemachine (network in to disk IO to network out).

(This works especially great for AOE because the protocol is both basedon raw packets and completely unordered,

In an aside in a recent entry , I wrote:

With sufficient cleverness, you can construct a version of capture() that is passed store 's name and puts the result in it directly,without needing you to make it an array and use store[0] .

I'm wrong. In Python, no outside power can change a function's localvariables (more precisely, no outside power can change the namebindings , doing the equivalent of ' localvar =something '). While you can

First I'll show you the symptoms, then I'll explain what I did to shootmyself in the foot:

# zpool create tank01 c0t38d0# zpool create tank02 c0t39d0# zpool replace tank01 c0t38d0 c0t42d0

(Time passes, the resilver finishes, and zpool status tank01 shows nouse of c0t38d0.)

# zpool attach