Eric Gisin wrote:

"J. Clarke" wrote in message
...
Eric Gisin wrote:

Nonsense. Flash hard drives are designed for harsh environments, and have
ECC and sector remapping just like hard drives.

So what? Any flash chip will have in its datasheet the allowable number of
rewrites. If you're using it in an environment in which writes are
frequent (for example Windows with its page file) then you will use up the
allowable writes in a remarkably short time.

Then you detect the error and remap the bad sector. Sound familiar?

They can use other tricks
like rotating frequently written sectors.

Which delay the inevitable.

Nope. You have millions of sectors, some of them spares.

Flash memory cards have no smarts, yet I don't see them dropping like
flies.

Flash memory cards are not normally used as primary storage.

They all have frequently written areas, the FAT and root dir. Why aren't they
dying?


Hello, Eric:

"Flash memory cards" will wear out, physically, after a comparatively
brief number of write cycles (100,000 is typical). Are "flash hard
drives" any more durable?


Cordially,
John Turco