Back to MTBF please..... I agree that 1M hours MTBF is very bogus. I don't really know how they compute MTBF. But I would like to see them compute the MTBF of a birthday candle. A birthday candle lasts about 2 minutes (as a guess). I think they would light 1000 candles at the same time. Then monitor them until the first one fails, say at 2 minutes. I think the MTBF would then be computed as 2000 minutes MTBF! But we can be sure that by 2.5 minutes, at least 90% of them would have failed. Guy - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html