[rescue] 50-pin "Ultra SCSI" drives at bargain prices

[Kris Kirby]

On Tue, 29 Jan 2002, Loomis, Rip wrote:
> Well, I certainly wouldn't pay $65 for a Ultra-Narrow
> 420MB drive--if in fact such a thing existed.  However,
> Ultra-Narrow isn't impossible.  The theoretical limits are:
>   10MBps - Fast (SCSI-2) Narrow
>   20MBps - Fast (SCSI-2) Wide, or Ultra Narrow
>   40MBps - Ultra Wide

Natch.

[transfer speed]
5MHz = Regular
10MHz = Fast
20MHz = Ultra
40MHz = Ultra2

Narrow = 8 bit, or (transfer_speed * 1) == MB/s.
Wide = 16 bit or (transfer_speed * 2) == MB/s.

Basically, transfer_speed * width == bandwidth.
40MHz * 2 Bytes = 80 MB/s.

I have several 9GB IBM UN drives; I can assure you such a beast exists.

-----
Kris Kirby, KE4AHR          | TGIFreeBSD... 'Nuff said.
<kris at nospam.catonic.net>   | IM: KrisBSD | HSV, AL.
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"Fate, it seems, is not without a sense of irony."