Re: harddrives with built-in NAND fkash
On Feb 7, 2014, at 1:25 PM, Ric Moore <wayward4now@gmail.com> wrote:
> Do they require any special formating or partitioning to take advantage of the 8 gigs of built-in "NAND flash"? I'm looking at a Seagate "Solid State Hybrid drive - ST2000DX001
>
> Thanks for any info and/or suggestions. Ric
Fabrice Vaillant replied:
> I have used the same kind of drive as a main drive on my laptop. While I have no proof that the extra nand where used, I tend to think they were. There wasn't any extra drive showing in gparted or other tool. Plus those nand are used by the drive to store most used file and quicken the loading of them, so I don't think it's the OS job to deal with them.
>
> Fabrice
I just bought a pair of the Seagate drives to use as system drives for a couple of servers.
As I read the specs, Fabrice is correct: The drive itself will figure out what to put in flash based on usage -- the user doesn't get a say. I'm hoping that it will decide to put the "interesting" parts of root and /usr there (to speed up booting), along with the database indexes for the servers (to speed up normal production use).
It would be fun to have some kind of an ioctl to figure out what actually happens... Not much chance of that, I'm guessing, but it sure would be interesting!
Anybody who works for Seagate on this list?
Rick
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