Messages in this thread | | | Date | Mon, 22 Mar 1999 09:22:11 -0500 (EST) | From | "Richard B. Johnson" <> | Subject | Re: [OFFTOPIC] Re: disk head scheduling |
| |
On Tue, 23 Mar 1999, Alan Modra wrote:
> > [cc list mercifully trimmed] > > On Mon, 22 Mar 1999, Richard B. Johnson wrote: > > > On Sun, 21 Mar 1999, Guy Sotomayor wrote: > > > > > (not a terribly fast drive) that has ~10000 cylinders (yes 10^4), 28 heads > > > > I was talking about physical cylinders. There is no way in hell you > > have 10,000 cylinders on a disk drive. > > http://www.fujitsu.co.jp/hypertext/hdd/drive/overseas/mpd3xxxah/mpd3xxxah.html > > 12555 cylinders, 13250 tracks per inch, 269951 bits per inch >
Hot damn! You got me. Do you think it's real or virtual. I think they include the heads, in other words tracks = cylinders. If not, they have a real invention to keep a head centered over a track that is less than 1/12555 inch in width (0.00007965 in) think about it.
Cheers, Dick Johnson ***** FILE SYSTEM WAS MODIFIED ***** Penguin : Linux version 2.2.3 on an i686 machine (400.59 BogoMips). Warning : It's hard to remain at the trailing edge of technology.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |