On 20110513_220818, Jochen Schulz wrote: > Bob McConnell: > > > > Before we go any further, lets get a couple of things sorted out. > > What type of SSD (Solid State Drive) are you all talking about here? > > > > If it contains Flash memory, > > What else do you have in mind? > > > then yes, there is a limit to the > > number of ERASE cycles each sector can do. How long they last > > depends on a number of factors, not the least of which is how old > > the chips are. The first generations of flash memory chips could > > only be erased about 10,000 times before they started to fail. > > Current generation (consumer-grade) MLC SSDs using 25nm technology use > flash that can only be rewritten 3000 times. Assuming perfect wear > levelling, that's still enough for most desktop applications. > 120GB*3000=360TB. That's still almost 100GB per day for ten years. Even > if write amplification quintuples the amount of date written, that's > still 20GB per day. My systems don't write that much.
This seems like hi-jacking my sub-thread. I asked a question of Stan Hoeppner because I was puzzled about the status of the technology behind the techy-buzzword SSD. The unstated purpose of asking was to get some clarity, for me, as to what he was talking about. I don't want to be the cause of a outburst of name calling. Has there been a major advance that obsoletes old conventional wisdom? It might be. I don't know. And editing out things that are irrelevant to ones comment certainly muddles the context. An example of how e-list rules really just exacerbate a complex issue. By the way, what is MLC in this context? -- Paul E Condon pecon...@mesanetworks.net -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20110513212128.ga3...@big.lan.gnu
