On Fri, Mar 20, 2015 at 08:29:29AM +1300, IVP wrote:
> > If you move the data far enough in logical space to put it
> > in a new group, it will then be incapable of landing on the
> > same physical block
>=20
> Perhaps this is all "re-arranging the deck chairs on The Titanic"
>=20
> but
>=20
> Would / could a partition do that ?

A partition would only change the logical block numbers used by the
operating system to write the file, exercising a specific value space
for the algorithm.

If the FTL is doing its job, writes to a smaller partition will still
be spread across the physical flash pages.  That includes autonomous
writes done to handle read disturb.

> I need less than 1GB on an 8GB or bigger card

This is also a technique to increase longevity in an application,
because the writes are spread over a larger space, and the lifetime
is extended.

If you've already got lifetime issues, I'm not so sure.

--=20
James Cameron
http://quozl.linux.org.au/
--=20
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.