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From: louie@sayshell.umd.edu (Louis A. Mamakos)
Newsgroups: comp.sys.next
Subject: Re: SCSI-II drives
Message-ID: <1991Apr18.040553.7415@ni.umd.edu>
Date: 18 Apr 91 04:05:53 GMT
References: <5m8i11w164w@ersys.uucp>
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Organization: University of Maryland, College Park
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In article <5m8i11w164w@ersys.uucp> ersys!drin@nro.cs.athabascau.ca (Adrian Smith) writes:
>/usr/etc/newfs -n -v /dev/rsd1a
>/etc/mkfs /dev/rsd1a 340448 28 7 8192 1024 32 10 60 4096 t
>write error: 340447
>wtfs: I/O error
>/usr/etc/newfs /dev/rsd1a failed (status 1)

This sure smells like the fstab for the disk is incorrect, and that
there may not be as many blocks on the disk as you thought.  You might
try to "feel" around with different size to see how large the disk is.
One of the things that mkfs does is diddle the last block on the disk;
that's where it looks like your write error is occuring.

Does the number of sectors per track include spares (that you can't put
user data on)?  How about spare tracks?  Can you talk to the drive
at all?  Try something like

	dd if=/dev/rsd1a of=/dev/null bs=1k count=100

to try to read the first 100 blocks off the disk.

louie