On 16/10/16 11:25, Andy Burns wrote:
The Natural Philosopher wrote:

Reading drivel from people who have a partial understanding and
reposting it doesn't make it true.

https://en.wikipedia.org/wiki/Wear_leveling

No one is saying wear-levelling doesn't exist, but you seem to be saying
alignment problems don't exist either.


No, what I am saying is that the later SSDS with decent wear levelling
set their own block sizes and boundaries so that what you do at OS level
is utterly irrelevant.

Its like pretending that any given memory address actually corresponds
top a particular cell in a particular chip, at application level. Memory
management is all about mapping logical virtual to physical.

And with a modern SSD, its the same. You call for sector 99, and what
you get is a random part of the disk that happens at that instant to be
mapped to sector 99. In reality it could be anywhere on any boundary the
SSD firmware and processor puts it.

I am sure there are also articles out there telling you how to defrag an
SSD too, and people who believe in then....

--
"It is an established fact to 97% confidence limits that left wing
conspirators see right wing conspiracies everywhere"