The internals of Shadow Migration

In the article about the new software version for the S7000 series i mentioned a feature called Shadow Migration. Eric Schrock wrote an interesting article about the inner workings of this feature in his blog: What is Shadow Migration?. I wonder if Solaris Engineering could use this work for a CacheFS follow-on …. at the end this would be not much more than a perpetual shadow migration plus the cache logic (LRU-stuff and consistency checking).