Ursprungligen inskrivet av cHeLo
De verkar inte hålla så länge, i allafall de SSD enheter som använder flash minne medans de som använder DDR minne klarar sig hur bra som helst. Här kommer lite info:
# Limited write cycles – flash-memory cells will often wear out after 10,000-100,000 write cycles[citation needed], while high endurance cells may have an endurance of 1–5 million write cycles (many log files, file allocation tables, and other commonly used parts of the file system exceed this over the lifetime of a computer.[15] Special file systems or firmware designs can mitigate this problem by spreading writes over the entire device (so-called wear levelling), rather than rewriting files in place.[16] Today's drives can last up to 20 years with average usage.[dubious – discuss] An example for the lifetime of SSD is explained in detail in this wiki.[dubious – discuss] SSDs based on DRAM, however, do not suffer from this problem.
# Slower write speeds – as erase blocks on flash-based SSDs generally are quite large, they are far slower than conventional disks for random writes and therefore vulnerable to write fragmentation,[17] and in some cases for sequential writes.[8] SSDs based on DRAM do not suffer from this problem.