QUOTE(donquixote @ Jan 9 2005, 09:24 PM)
QUOTE(grey_moon @ Mar 15 2004, 01:28 PM)
One thing puzzles me, sd cards are solid state drives and have a limited lifetime.
And someone else posted:
using flash for swap is about the fastest way to toast it under normal use.
Where are you people getting this information on the limited lifetime of flash memory? Because I can't find any info on it, so I am thinking that what you are saying is not true.
Feel free to correct me though.
It is true, they do have a limited lifespan. Quote from here
Individual flash memory cells have a limited lifespan. That's the bad news. The good news is that their lifespan is measured in the hundreds of thousands or even millions of erase/write cycles. CompactFlash cards are designed to automatically and transparently map out memory cells that go bad, or in some cases when they reach a predefined limit, i.e. 300,000 erase/write cycles (note that this figure is just an example; manufacturers may use a different figure). Cards should continue to function long after a few cells have expired, since even the busiest flash memory card won't start turning off a significant number of memory cells until after many years of service.
But swaping is quite an intense reading/writing process, that's why nobody recommends using a flash drive as swap place.
They getting cheaper however, so I usually use swap, but with a little bit of protection. I always make about 3 swapfiles and use 2 of them with different priority level (the higher the priority the more the system uses that swap).