Re: off-site backup
On Mon, Oct 16, 2006 at 01:57:55PM -0400, Lennart Sorensen wrote:
> On Mon, Oct 16, 2006 at 01:50:15PM -0400, email@example.com wrote:
> Different types of flash memory have different cycle counts.
> > I don't know how a memory chip gets translated into a 'drive'. Is it
> > like a HDD with spare sectors?
> Depends on the firmware/controller in the device. Some are very dumb
> and do essentially one to one mapping. Others are smart and do wear
> leveling across the whole flash chip, so that anything that changes
> often will be moved around, and stuff that never changes will be moved
> to the more used sectors to let the less used sectors get some use.
How do I tell smart from dumb before I buy?
My store sells Kingston DataTraveler because Kinston makes good RAM too.
It has a 5 year warranty. A 2 GB unit is $55 CDN.
Does a badblocks check during a fs check work?
Is there a filesystem that can compensate for dumb firmware?
Is there a filesystem with integral sector-based error correction?
Would partitioning a flash drive in two and raid1 together be useful, at
least to preserve data when a sector dies so you can move the data to a