[Starlink] Starlink "beam spread"

[Brandon Butterworth]

On Wed Aug 31, 2022 at 02:34:04AM -0700, David Lang wrote:
> On Wed, 31 Aug 2022, Brandon Butterworth via Starlink wrote:
> 
> >With Starlink capacity being multiplexed per Dishy and uplink
> >and downlink capacity equal on each satellite there doesn't appear
> >to be any sharing gain to be had there warranting a CDN in space.
> 
> don't forget that there are also the laser links, they could link you to a 
> shared space CDN, and they also 'complicate' the uplink/downlink 
> calculations for any one satellite.

That was the subject of the following paragraphs. I agree that is
likely the key enabler for a space CDN.

Some mentioned SSD density is too high for space.

We're used to some hard errors in flash, is the space error rate too
high to cope with, even with increased sparing?

Or is it the soft error rate that is too high? At least for a CDN the
soft rate is less of an issue as it is invalidating cache entries all
the time, this is just a new reason to that requires detecting, and
perhaps a less than whole file invaliation for more efficient replacement.

brandon