On 11/12/13 03:19, Imran Geriskovan wrote: SSDs:
> What's more (in relation to our long term data integrity aim) > order of magnitude for their unpowered data retension period is > 1 YEAR. (Read it as 6months to 2-3 years. While powered they > refresh/shuffle the blocks) This makes SSDs > unsuitable for mid-to-long tem consumer storage. Hence they are > out of this discussion. (By the way, the only way for reliable > duplication on SSDs, is using physically seperate devices.) Interesting... Have you any links/quotes/studies/specs for that please? Does btrfs need to date-stamp each block/chunk to ensure that data is rewritten before suffering flash memory bitrot? Is not the firmware in SSDs aware to rewrite any too-long unchanged data? Regards, Martin -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
