On 06/19/15 13:38, andrew fabbro wrote:
On Wed, Jun 17, 2015 at 8:27 PM, Nick Holland
<[email protected]> wrote:
been meaningless for some time). When the disk runs out of places to
write the good data, it throws a permanent write error back to the OS
and you have a really bad day. The only difference in this with SSDs is
the amount of storage dedicated to this (be scared?).
I'm guessing that "spare space management" is typically handled
entirely within the drive and is not exposed as an API, right?
right. Just like a magnetic disk.
In other words, you can't say to the drive "you say you're out of
spare space, but let's take this space here that I'm not using and use
those as new spare space so I can keep using this drive with a reduced
capacity."
right. Just like a magnetic disk.
Really. Not much new here, just faster.
Seems the more people try to do special things for SSDs, the more they
get into trouble. Stop. Just treat the SSD as a really fast disk, and
you will be happy.
SSDs -- over all -- will probably last for the first life (about three
years) of a computer like rotating rust (i.e., some failures, but
nothing too surprising). For recycled hw, well, let's see how it works
out, but I very often replace disks anyway on recycled computers -- that
once huge 120G disk is not impressive any more and using the old disks
on things that don't matter much. With the current crop of sub $100US
2T disks, I wonder how long they will last, too.
Nick.
