On 12/23/15 21:07, Neuer User wrote: > Understood. However, do SSDs really do automatic deduplication? I might > be completely wrong here, but that sounds to be a rather complex > mechanism, requiring lots of RAM to deduplicate 100 GB. I wouldn't have > thought that typical SSDs include that?
tl;dr: no, because delta encoding/write buffer coalescing is not dedupe. This is one of those persistent myth that has been kept alive by the internet rumor machine. It has its roots in a series of blog articles [1] and turned out to be panic coupled with FUD and fueled by a lack of factual information. I suggest everyone read the article(s), ALL the comments and then get back to drinking. :o) In SSD arrays dedupe is generally seen as a good thing. -h [1] http://storagemojo.com/2011/06/27/de-dup-too-much-of-good-thing/ -- 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
