On Fri, Jan 04, 2013 at 02:30:43PM -0500, David Shaw wrote: > On Jan 4, 2013, at 9:27 AM, Johan Wevers <joh...@vulcan.xs4all.nl> wrote: > > > On 04-01-2013 5:42, David Shaw wrote: > > > >> Paperkey 1.3 is released. > > > > You might want to update the website, it reads a bit outdated. > > CD/DVD-ROMs are going the way of the floppy disc; flash memory is much > > more reliable than either. Future support of USB ports or memory card > > readers seems the biggest concern for me. > > That's a very good point. Do you know of any studies on the projected life > of flash when used as backup? I've read anecdotal numbers as low as 5 years, > and marketing claims are always huge (100 years!), but most of what I see is > about the lifespan is when the flash is actively used (so running out of > read/write cycles), rather than the on-the-shelf lifespan of already written > data.
I'd suggest assuming some periodic read-only use, since we *should* be testing our backups regularly to discover decay *before* it makes something irretrievable. -- Mark H. Wood, Lead System Programmer mw...@iupui.edu There's an app for that: your browser
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