On 08/12/2025 01:43, Peter Ekstrom via cctalk wrote:
I gotcha. I don't know if I have seen a SCSI DVD drive. I guess I have
never looked for one.
That's a good idea though. When I run low on CD-Rs I'll have to look for
one.
Thanks,
- Peter
I have some SCSI DVD drives. I think they are Toshiba. They have jumpers
for UNIX/VMS/Solaris booting and worked well in my MicroVaxes.
Not sure if they are the same as this one as I am away from home,
https://www.ebay.com/itm/256748538151
but a quick glance at the manual seems to show it has the sector link...
http://ps-2.kev009.com/basil.holloway/ALL%20PDF/8200000029F800000BDF0000000100000000.pdf
but please check carefully before buying
Dave
On Sun, Dec 7, 2025 at 8:30 PM Wayne S <[email protected]> wrote:
I was just suggesting thst you might be atto replace the cd drive with a
dvd drive. Maybe there is a driver available for vms.
Sent from my iPhone
On Dec 7, 2025, at 17:19, Peter Ekstrom <[email protected]> wrote:
I have a stack of CD-R disks so I'll burn an ISO image I have onto one of
those and give that a try. A CDROM drive can't read a DVD so it has to be a
CD-R.
- Peter
On Sun, Dec 7, 2025 at 5:27 PM Wayne S <[email protected]> wrote:
Also: what kind of cd is your cdrom going to use? I have an Alphastation
200 and the cdrom only takes the old 640 mb cd’s which are difficult to
find.
Maybe a dvd drive could work?
Sent from my iPhone
On Dec 7, 2025, at 14:25, Wayne S <[email protected]> wrote:
Anything interesting software on the system?
Sent from my iPhone
On Dec 7, 2025, at 14:20, Peter Ekstrom via cctalk <
[email protected]> wrote:
Yeah, both ideas are good ideas. I am considering replacing the rz25,
or
adding a ZuluSCSI, that way I could assign one of the devices for
backups.
For now, I am just trying to preserve what's on the disk now. I want
to do
a fresh install once the CDROM arrives. It is an interesting exercise
to me.
Right now that RZ25 is running nicely without much noise so no rush I
don't
think, but still.
- Peter
On Sun, Dec 7, 2025 at 5:00 PM Hans-Ulrich Hölscher via cctalk <
[email protected]> wrote:
... and the resulting backup will be much more reliable than the one
written by an old tape drive (which model, by the way?) on a possibly
old
tape, if that ever succeeds.
I made especially frustration experiences using the once famous TK50
drives, and even (a little) more recent DAT drives tend to fail very
often
nowadays.
One disadvantage, however, is the necessary struggle with licensing,
although that can be managed with a little help.
Another option is a backup over network WITHOUT using an operating
system
running on the system to be saved. Unfortunately it has up to now been
tested on MicroVAX I and MicroVAX II systems using a DEQNA or DELQA
network
adapter only. It uses a simh VAX to send a special machine language
program
to the backup target computer, on that the program in turn uses MSCP
commands to send a bit-wise disk copy back to the simh VAX. It is
new, it
is unconventional, but it has been successfully tested on several
MicroVAX
I and MicroVAX II computers. I think it is time to get out one of my
VAXstation 3100s (won't make any difference) and test it there. But
you
will need to be patient – other projects have priority for the time
being.
To be honest - I expect the program will need adaptation to the newer
hardware, especially the network adapter - MSCP hasn't changed I
think.
Am So., 7. Dez. 2025 um 22:27 Uhr schrieb Antonio Carlini via cctalk <
[email protected]>:
On 07/12/2025 20:27, Peter Ekstrom via cctalk wrote:
I managed to reset the system password so now I can login as well.
It
runs
pretty well.
I tried to make a tape backup of what's on the disk but it seems
all my
tapes dirty-up
the head of the tape drive. Anyone know of a way to clean an actual
tape?
Pull all the
tape out and wipe it with a dry cloth?
One option would be to create a SIMH VMS host, configure it to be in
a
cluster, configure your real HW uV3100 to be a satellite node
(booting
off a root on the SIMH host system disk), boot the uV3100 into the
cluster, mount the uV3100 disk and back it up with BACKUP.
That might be easier and quicker than cleaning a tape.
Antonio
--
Antonio Carlini
[email protected]
