Subject: 1.5_ALPHA2 on VS3100/m30 and external SCSI
To: None <>
From: Matthias Buelow <>
List: port-vax
Date: 09/28/2000 04:34:11

does anybody know of problems using an external SCSI disk with a
VAXstation 3100/m30 with 1.5_ALPHA2?
I have attached a 4GB disk on the external port and the kernel
recognizes it as sd1:

sd1 at scsibus1 target 1 lun 0: <QUANTUM, XP34301, 1071> SCSI2 0/direct fixed
sd1: 4106 MB, 4076 cyl, 20 head, 103 sec, 512 bytes/sect x 8410200 sectors

However, the disk doesn't seem to be able to hold a disklabel, once
written to it it always seems to "disappear" after a few moments.

I wrote the kernel generated label to the disk using:

disklabel sd1 >sd1label
disklabel -R -r sd1 sd1label

which seems to work, although it spits out "sd1: no disk label";
at least "disklabel -r sd1" now displays the label.
However, after a few seconds, a second "disklabel -r sd1" fails

sd1: no disk label
disklabel: no disklabel

and "disklabel sd1" displays the incore-label followed by

disklabel: boot block size 0
disklabel: super block size 0

Having done this for quite some time now, I also managed to
create a partition once and newfs it, but after writing the
superblock backups, newfs failed with, iirc, "wtfs: read-only
filesystem" and then the label was gone again.

The disk itself is known to work.  Anyone got some hints or