North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Packet Loss
In message <[email protected]>, [email protected] t.edu writes: > >--==_Exmh_-322173952P >Content-Type: text/plain; charset=us-ascii > >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. Let's see... 6250 bpi * 12 in/ft * 1600 ft == 120M, if I haven't miscounted decimal places. So you can fit 5 tapes per CD-ROM, and save a lot of space. --Steve Bellovin |