Theodore Ts'o, on 10/25/2012 09:50 AM wrote:
Yeah.... I don't buy that. One, flash is still too expensive. Two, the capital costs to build enough Silicon foundries to replace the current production volume of HDD's is way too expensive for any company to afford (the cloud providers are buying *huge* numbers of HDD's) --- and that's assuming companies wouldn't chose to use those foundries for products with larger margins --- such as, for example, CPU/GPU chips. :-) And third and finally, if you study the long-term trends in terms of Data Retention Time (going down), Program and Read Disturb (going up), and Write Endurance (going down) as a function of feature size and/or time, you'd be wise to treat flash as nothing more than short-term cache, and not as a long term stable store. If end users completely give up on flash, and store all of their precious family pictures on flash storage, after a couple of years, they are likely going to be very disappointed.... Speaking personally, I wouldn't want to have anything on flash for more than a few months at *most* before I made sure I had another copy saved on spinning rust platters for long-term retention.
Here I agree with you. Vlad -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
