15 Apr
2010
15 Apr
'10
9:25 a.m.
Alexandre Souza - Listas wrote:
And you leave them some years without turning on, the
heads glue to
the disk surface and bye bye.
Would it help to store them vertically instead?
What about memory cards? CFs are cheap and IDE interfaces may be
avaiable for years to come :oO
No idea. Aren't they based on storing a charge, the way a capacitor does?
This page claims 10 years...
http://fixunix.com/hardware/8918-ot-flash-memory-longevity.html
"Manufacturer's data sheets usually claim 10 years.
Bits will rot one-by-one and NAND-FLASH has ECC codes
to compensate."
Yup:
http://en.wikipedia.org/wiki/Flash_memory :
"can store more than one bit per cell by choosing between multiple
levels of electrical charge to apply to the floating gates of its cells."
So MLC should die quicker than SLC, though it can store more.
Perhaps taking them out once in a while and copying their data to newer
media every 3-5 years is a good idea.