On Mon, 11 Nov 2013 04:06:16 +0100
berenger.mo...@neutralite.org wrote:

> 
> I am sorry, I do not understand what you mean by "minimize wear". ( 
> yes, I do not only use that list to learn stuff about Debian, it also 
> helps me to work my English since I have no other occasions to do
> that, sadly ;) )
> 

Flash drives have a limited (and unknowable) number of write cycles
available due to the nature of the electric charge storage used. They
are now very much longer-lived than the early ones, but there will
always be a limit. It is spoken of as 'wear' even though there are no
physically moving parts.

There are filesystem strategies to avoid concentrating this wear on a
small number of locations, but even so, many people try to minimise the
writing by avoiding journalling filesystems and unnecessary timestamp
updating.

Also, writing to flash memory cannot be done to single locations, as
with RAM, but blocks have to be written at a time, which is another
reason to minimise writing. This naturally slows down the write speed,
although again, modern devices have hardware assistance to improve the
speed. I have one of the original Acer Aspire One netbooks, with an 8GB
SSD, and it is almost unusable. I almost always run the netbook with an
external USB hard drive, which gives decent speeds. I am aware that
there are faster drives that can be used to upgrade the machine, but
they cost a substantial fraction of the value of the computer, which I
bought refurbished.

-- 
Joe


-- 
To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org 
with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
Archive: http://lists.debian.org/20131111090940.06cc3...@jretrading.com

Reply via email to