UPDATE: I was able to solve this problem years ago, but for anyone reading this in the future, the durability problems turned out to be related to flaky power supplies.
--- Original question ---
I'm attempting to use the Raspberry Pi as an embedded/industrial computer. Temperatures are within completely sane ranges, and the primary reliability issues I'm running into are seem to be around SD card deaths after a few months.
Are there any published stats of SD cards in use in industrial/embedded solutions and their MTBF (Mean Time Before Failure)? I've seen a few basic stats claiming 1,000,000 write cycles per sector with wear leveling built into the card, and that's all well and good, but I'm looking for published, real-world test results, not the sales spec sheets, showing real-world performance and failure numbers.
Ideally I need something that I can reliability write to continuously for about 2 years before failure for an embedded linux install that occupies about 1.8 Gb of space on the card. I'm also aware that the larger your free space, the more you can spread out the wear leveling, so larger cards of the same durability effectively give you longer life.
Anyone try to use Raspberry Pis in an industrial situation successfully?