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On Friday 05 February 2010, Rob Beard wrote: > Quoting george parker <georgeparker20@xxxxxxxxxxxxxx>: > > I think some people have missed the point here. SSD's may be the next > > big thing but they are only a replacement for a spinning hard drive, > > using current technology. The storage medium has size limitations. The > > reliability may be better eventually due to lack of moving parts but the > > size per Gb probably won't be and speed won't be (I didn't particularly > > mention speed in my original drone) and power consumption is a problem. > > You say that though look at the capacities of Flash and how they've > come along over the past few years. For instance, when I bought my > first digital camera back in 2002 it came with something like an 8MB > Smart Media card. I then upgraded to a 'whopping' (at the time) 32MB > Smart Media card. Now these cards were big in physical size, but > still smaller than a CD/Floppy. > > Now 8 years on, I have a few 4GB cards the size of my thumb nail, and > I know that MicroSD capacities are reaching 32GB too (albeit not > overly cheaply, but still probably only about twice that of what I > paid for a 32MB card back in 2002). So in 8 years the capacity is > 1000 times larger and the physical size is probably about a quarter of > the size of the original Smart Media card. > > So it's pretty certain that SSD prices will go the same way, the > capacities will get larger and prices will come down as techniques and > technology improve. I believe if you can afford it there are already > 1 and 2TB SSD's available but they are very very expensive, but like > everything, the prices will come down. Not to mention there have been > SSD's demonstrated that saturate the 3Gb/sec speed of SATA 2 and with > SSD's generally being smaller, I dare say manufacturers will start > doing tricks like internal RAID arrays (maybe putting a couple of > SSD's together in a drive enclosure with some box of tricks to speed > things up further. > > I certainly don't think hard drives are going to match that, it's > already been demonstrated that the new SATA 3 (6Gb/sec) drives from > the likes of Seagate are quick but not quick enough to even saturate > SATA 2 (3Gb/sec) interfaces. > > > My point (I think) was that we need to refine the horse that we have > > while we wait for the motor car to come along. > > Ahh, you mean a sleeker faster horse with more legs and go faster stripes? > > Rob No good, not enough drive capacity. All flash, OK for a gig I suppose. George -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html