
[wonder] sent in an interesting proof of concept how-to on setting up a virtual raid 5 drive that uses free ftp servers to store data. The technique is a bit round-about, but he says it works pretty decently. The shares are mounted under windows with netdrive, then raided by FreeNAS under VMware. I haven't tried it myself, but I'd probably try to do the same thing, but use LUFS and do everything under one operating system.


21. Although interesting in concept, this is really a bit of an *anti* hakc. A hack is a simple (if a bit rough) solution to a (typically) complex problem, or one that normally requires a complex solution. This spins the definition on its head, using a baroque solution to a relatively simple problem that typically has a relatively simple solution (or range therof). Still interesting, just not a hack in my book.
That said, I could see it being used, as another poster mentioned, in a security context rather than one which takes advantage of the other usual reasons to implement RAID-5, however to do so reliably it would need many more "spindles" as well as many, many extra parity disks per stripe. The alternative would be to do something akin to CD encoding where a massive number of bad bytes can be corrected. This all assumes of course that several of your ftp servers are down for whatever reason at the same time.
Finally, regarding the self-destructing hdd, I'd think that a simple mechanical pucture device would suffice so long as it shattered the platter. Unless you are a truly high-profile prize, no law enforcement agency will spend the $$$ to reconstruct a physically broken platter.
Posted at 12:28AM on Dec 24th 2007 by ScrappyLaptop