Archived posting to the Leica Users Group, 2009/03/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]If it's that good, why do folks diddle around with all the power-sucking, footprint hogging, massive expense, disc-dying, mind-numbing complexity of raid arrays? With a decent label maker and some plastic holders (I'm wondering if I haven't figured out a use for all those extra slide pages I have) you could keep years of work in something like a coin collectors album. --- On Fri, 3/27/09, Brian Reid <reid at mejac.palo-alto.ca.us> wrote: > From: Brian Reid <reid at mejac.palo-alto.ca.us> > Subject: Re: [Leica] Flash lifespan > To: "Leica Users Group" <lug at leica-users.org> > Date: Friday, March 27, 2009, 2:00 PM > >From 2000 to 2002 I worked on a project with NASA to > upgrade the computers and networks that were used in the > International Space Station. One of NASA's axioms, based > on their experience thus far, was that anything that went up > to be used by astronauts needed to be fitted with flash > memory because NASA believed that flash stood the best > chance of long-term survival in harsh space conditions. > > It is now 7 years later and possibly they believe something > else now (the group has dispersed) but I continue to believe > that flash memory is extremely rugged and reliable. > > You can wear it out by using it too much, but that's > another story. > > Wasn't it EPROMs that were erased with a giant flash, > despite what Toshiba's press office says? Flash is > electrically erasable; EPROMs use optical (UV) erasure. > > > > > > This has probably come up before so I apologize for > needing a reiteration, but how long can an SD card hold its > data without deteriorating? > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more > information