Re: ArchiveDrives, it's particularly their low-cost/capacity which is
interesting. (WD have an expensive whizzy He-filled 8TB drive out
Right Now, but it is considerably more expensive than the SMR Archive
disk from Seagate at the same capacity.) What makes this more complex
is the difficulty of long-term projection concerning how HDD classes
will develop - HAMR disks are due in 2017(ish), which should push
capacity up potentially by a factor of 5 (without SMR), but the cost
will presumably be higher due to the write-head complexity. (Post
HAMR, bit-patterned media, BPM+HAMR, BPM+HAMR+SMR? it all gets a bit
complex by 2020, at which point apparently we'll have 40 to 80TB in a
3.5'' disk... but the price/performance isn't talked about.)
Sam
On 1 July 2015 at 12:48, Jensen, Jens (STFC,RAL,SC)
<[log in to unmask]> wrote:
> And with extra notes goodness now added:
> http://storage.esc.rl.ac.uk/weekly/
>
> Thanks
> --jens
|