Mailinglist Archive: opensuse (2835 mails)

[James Knott <james.knott@xxxxxxxxxx>]

Randall R Schulz wrote:
> On Saturday 27 December 2008 15:38, James Knott wrote:
>   
> > Carlos E. R. wrote:
> >     
> > > On Saturday, 2008-12-27 at 17:50 -0500, James Knott wrote:
> > >       
> > > > > Those memory/drives, can they stand infinite write cycles?
> > > > > Because flash memories can't.
> > > > >           
> > > > Mechanical drives can't either.
> > > >         
> > > Of course they can. The limit is in the thousands of hours of
> > > usage, not in the write cycles. There is no wear on the surface or
> > > the head because of changing the magnetization. They don't touch.
> > >       
> > How many infinite writes do you get per thousand hours? Mechanical
> > devices wear whenever they're used. Heads crash, bearing wear out.
> > Why else do drives fail? They don't last forever.
> >     
>
> But the point is that flash RAMs have an "asymmetry" between reading and 
> writing that does not exist in magnetic media. There is (with current 
> technologies) an upper bound on the number orf writes (but not reads) 
> that can be performed on a flash RAM that has no counterpart in 
> magnetic media.
>
>
> Randall Schulz
>   
With that, you raise the question of how often you write vs read.


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