Re: Packet Loss

[Hugh Irvine <hugh () open com au>]

Hello all -

On Sat, 16 Dec 2000, Valdis.Kletnieks () vt edu wrote:
> On Fri, 15 Dec 2000 09:24:04 CST, "John R. Grant" said:
> > <cringe>
> > that would be 9600 bit per inch GCR format 9-track tape, don't you think?
> > </cringe>
>
> At least in the IBM world, the options for 7-track were 200/556/800 bpi
> with even or odd parity, and mode=normal/data converter/translator. For
> 9-track the options are 800 NRZI, 1600 PE, and 6250 GCR.
>
> I still have 21 9-track tapes in my office that I need to do something with,
> as our last system with 3420-style round tapes is being decomissioned in
> the next few months.

Slightly off topic, but interesting nonetheless.

I once worked on a marine seismic data acquisition system in the North Sea oil
fields, and we ran the system 24/7 when we were on a job. We generated 9-track
6250 GCR tapes at the rate of about one tape every 10 minutes. We used to buy
and ship the tapes by the container load (and we used a Cray to process the
data...).

cheers

Hugh


-- 
Radiator: the most portable, flexible and configurable RADIUS server 
anywhere. Available on *NIX, *BSD, Windows 95/98/2000, NT, MacOS X.
-
Nets: internetwork inventory and management - graphical, extensible,
flexible with hardware, software, platform and database independence.