On Thu, Jul 3, 2014 at 2:00 PM, Roger Heflin <rogerheflin@xxxxxxxxx> wrote:
It will almost certainly be fine, at worst it may be a bit slower
under the right benchmark, but unlikely to be anything that matters
unless you need it as fast as it possibly can be.
The underlying platter data rate is almost certainly less than 3Gbps.
Check the manufacturer's web site I would suspect even if that is a
*FAST* spinning disk it is still below 200MB/second (2Gbps). It
will be listed as a range, the lower number is the speed on the inside
of the disk and the higher is the outside of the disk. Rotational
speed is constant, but the amount of data on a given track is more on
the outside as there is more area to encode bits and the disks place
sectors based on constant area.
I also looked at similar analyses.
It turns out that the combinations of
sata ii enclosure, sata ii controller do indeed
throttle the wire speed of the data transfer from
a sata iii drive to the system.
But by most analyses, it has no effect on data
throughput because mechanical drives are still a long ways
throughput because mechanical drives are still a long ways
from outstripping the 3gbps wire speed.
Cheers,
JD
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