On Thu, Jun 1, 2023 at 4:45 PM Alexander Schreiber via cctalk
<cctalk(a)classiccmp.org> wrote:
On Wed, May 31, 2023 at 05:01:34PM -0700, Fred Cisin
via cctalk wrote:
What is the bandwidth of a station wagon full of
1TB Mcro-SD cards hurtling
down the highway?
$BIGNUM.
I did see an actual 1970s station wagon loaded with RL02 cartridges
once, pulled up at the dock of Baker Systems, the large Computer
Science building at Ohio State (I suspect they were cleaning out a
machine room and someone wanted the packs. Obviously I didn't know
the right person that day).
At Pole, we saved all the raw sensor data from AMANDA and later Ice
Cube to DLT-format tapes (increasing the media/drive density over
time) once a year, and it quickly grew to the point that we were
stuffing several hundred TB of tape into an LC-130 to ship back to
Wisconsin. It took 3-4 months to read last year's data once it
arrived. So maybe not a 747 full of magtape, but still, a couple of
cubic meters of DLT tape going 850 miles in 3.5 hours (Pole to
McMurdo) is pretty decent bandwidth. The MCM->NZ leg was on a jet
(C-17) so it upped the bandwidth, but on a larger plane so the
effective capacity utilization dropped.
-ethan