SCSI disk on a 3B2

[Art Gentry]

In article <1991Mar11.210006.15458 at pslu1.psl.wisc.edu> dhoyman at fammed.wisc.edu writes:
>We would like to accquire a 3rd party SCSI disk, such as a Fuji, for our 3B2. 
>In order to use this, the System V device drivers must recognize this "foreign"
>disk.  Without buying the driver from AT&T, how can we do this configuration
>ourselves?

You need to create a vtoc file for the drive.  Below is a copy of the
file I have for my HP SCSI drive on my 3b2/400.

===================cut here======================
* /dev/rdsk/c4t1d0s8 partition map
*
* Dimensions:
*     512 bytes/sector
*      32 sectors/track
*      12 tracks/cylinder
*     384 sectors/cylinder
*    1642 cylinders
*    1640 accessible cylinders
*
* Flags:
*   1: unmountable
*  10: read-only
*
*                          First     Sector    Last
* Partition  Tag  Flags    Sector     Count    Sector  Mount Directory
       6      0    01          0    629760    629759
       7      0    01          0       384       383
       8      0    00        384    315264    315647   /usr2
       9      0    00     315648    314112    629759   /usr3
==================cut here======================

See the command fmthard(1M) for detailed info on creating this file.

>Of course, this would not be a problem if AT&T System V would just go out and
>"see" who's on the bus, like a Sun does.  But, no-o-o, the kernel must know
>about each disk drive.

Wouldn't it be nice if AT&T did alot of things like the rest of the
world does? <sigh>

|   R. Arthur Gentry  --  Gentry & Associates -- Excelsior Springs, MO    |
| gentry at genco.bungi.com       uunet!daver!genco!gentry      816-637-2443 |
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