Re: {Debian (>=Jessie)} AND { MultiMediaCard, SD Memory Card, etc}

[Pascal Hambourg <pascal@plouf.fr.eu.org>]

Le 03/12/2016 à 13:59, Jochen Spieker a écrit :
> deloptes:
> > Steven Mainor wrote:
> >
> > > I don't know if this helps answer #3 or not. I have ran Debian from a
> > > microSD flash card before but the card reader was attached via USB.
> > >
> > > It didn't last very long before the flash card degraded. I think running
> > > an operating system on flash used up the read/write cycles too quickly.
> > > I eventually decided to find another solution. But it may not be an
> > > issue for your use case.
> > I don't think so. I have a low power industrial pc used as firewall. It runs
> > on Compact Flash card for >6y now. I recall there were at least 100000
> > write cycles per sector and self diagnostic, so I would suspect something
> > else would be the problem.
>
> CF cards were much more clever from the beginning compared to cheaper
> alternatives (like SSD or MMC cards). I would expect them to have better
> wear levelling than a common SD card.

I would be surprised that a CF card be more clever than a SSD.
However 100000 erase/write cycles/block implies the use of NOR or SLC 
NAND flash memory chips, the types with highest endurance but lowest 
density. I doubt you can find this in SD cards. MLC NAND endurance can 
be 100 times lower.