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Date:      Fri, 17 Jan 1997 15:27:58 -0800 (PST)
From:      Doug White <dwhite@gdi.uoregon.edu>
To:        Gary Kline <kline@tera.com>
Cc:        FreeBSD Questions <questions@freebsd.org>
Subject:   Re: IBM/CSC SCSI drive
Message-ID:  <Pine.BSI.3.94.970117152029.29478A-100000@localhost>
In-Reply-To: <199701150457.UAA24359@athena.tera.com>

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I'm throwing this back into -questions for comment.

On Tue, 14 Jan 1997, Gary Kline wrote:

>    Like I said, there isn't much that looks like it fits into
>    /etc/disktab.

What's the probe line for this disk?  It relays lots of info...sorry I
deleted it.  I really need the # sectors/track, tracks/cylinder & num
cylinders on the disk.  I used to know how to do disk math, but I've
forgotten.

> 
>    The drive is an IBM DSAS-3720
> 
>    Capacity:  730MB
>    Bytes/Sector  512
>    Data transfer speed 10MB/sec
>    Average seek time   12ms
>    Rotational Speed    4500 rpm
> 
> 
>    Data Organization
> 
>    Number of heads   4
>    Number of LBA's   1,427,328    (LBA??? dunno)
>    Sector siize      512
>    User Data Bytes   730MB

DSAS3720|IBM DSAS-3720:\
	:dt=SCSI:ty=winchester:se#512:rm#4500:sf:

>    Can you make a disktab entry with just this??   Would anybody
>    else on the list have any clues?  I'm lost... .

Well, that's what I've hashed out so far.  I think the disk probe gives
much of what I'm missing, or else it's a matter of math.

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major




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