> From: Jay West
> A fully working 11/34, in a complete period rack (with all side panels
> and filler panels), and 4 working RL02's, VT220, a Decwriter ...
> $1000 isn't realistic at all. It should definitely be higher than that.
I concur.
My methodology for _accurately_ valuing something like this is to create as
comprhensive a list of sub-items as possible, then value them, and then add
it up; something like this:
$A Bare H960
$B 2 x H960 side panels
$C BA11-K (box and power supply)
$D BA11-K slides
$E DD11-PK backplane
$F PDP-11/34 CPU boards
$G MS11-L
$H 4 x RL02 drives
$I 15 x RL02 packs
etc etc. Alas, the listing doesn't say exactly which boards are in the 11/34
(and not even any pictures of the insides). I don't know exactly how much $A,
etc are - I have varying levels of experience with these things, but for
instance, I know that MS11-L's are much desired, and command high prices.
Note that the listing does have a reserve, so their actual asking price is
above $5K. Getting that total out of one bidder may be a bit too far; they
might have better luck getting it sold if it was a couple of smaller
lots.
Noel
Hi,
Thanks for the notes/comments/suggestions.
Recovery service: not that I've found. Most of the ones I know of have *us*
as their HP 3000 experts (i.e., we help them :) ... when I've asked in
recent years
about handling damaged or overwritten DDS (or newer) tapes, I've always been told 'no'.
The "cut out some tape" would definitely not work. At least LTO, probably DLT,
have multiple tracks and the tape makes multiple passes from start of tape to end of
tape as it writes the entire tape. That means on a 16 track tape, you'd lose part
of 16 different sections if you cut out a piece of tape (ignoring the question of whether
or not the drive could resynch after such an error :)
Eric's reply is closest to home ... that's why I mentioned a 'hacked' drive,
hoping someone might know specialists who have one.
Chuck mentioned an approach I had mentioned: the power kill during writing approach.
I'm hesitant to try that as it will (based on dim memory of doing it 15 years ago
on a DDS) lose a small bit of data ... if it works at all.
I'm giving up for now.
thanks,
Stan
> From: Eric Smith <spacewar at gmail.com>
>
> I hope someone can prove me wrong, but I think that short of a major effort
> to hack the drive firmware, the data is gone. Modern tape drives are "too
> smart" to allow reading past logical EOT, and the tape format is too
> complex to allow fooling the firmware by any simple means.
>
> ------------------------------
> From: "Nico de Jong" <nico at farumdata.dk>
>
> I've had the same problem some years back, with a DDS-3, IIRC
>
> I did some research, and the most reasonable outcome was that it was not
> possible by normal means, because some algorithm reading synchronisation
> data couldnt find out what was happening, so, the backup was ruined.....
>
> ----
> From: Chuck Guzis <cclist at sydex.com>
>
> With nothing left to lose, I suppose that one might overwrite the EOT
> and then kill power during the write, then attempt to read backward from
> the end of the tape.
>
> ------------------------------
> From: "js at cimmeri.com" <js at cimmeri.com>
>
> Would it be possible to just physically
> cut the 1kb + EOT portion of tape out,
> and then attempt to read from
> beginning? I suppose this would depend
> on how the backup data is formatted on
> the tape (using some kind of container
> format with error checking, for instance).
>
> ------------------------------
> From: Jerry Weiss <jsw at ieee.org>
>
> Have you approached a commercial recovery service for a quote?
> A few do tape media. Whether they quote or not may provide a data point about how feasible it may be.
----
For the NCAR Mass Storage System, when we upgraded our tape drives to Sun STK T10000 models, we lost the ability to skip past the EOT mark with standard firmware. We asked Sun to provide a firmware modification that let us issue four or so reads after reaching the EOT mark, and the drive would then continue on until it found good data again. We didn?t need it very often, but it was handy to recover single copy data.
I have a friend who wants to add more memory to a PS2 model 30. They are
off in the wilds of Oz and acquired this for a good price and would like
to just upgrade it to run some programs they have which do not run on
modern faster systems.
I know this is a snake pit to deal with, and can get more info if
someone can get me some information or point me at references for them
to look at.
What I'm really interested in doing is seeing if just the memory can be
had, and it isn't easy to find Sim modules these days, though I suspect
there are metric tons of them rotting in places forgotten and not
recycled yet.
anyway any info to get started would be useful.
i see there are entire systems on epay, and may suggest just buying one
of them and cannibalizing them for their memory should the asking price
for the individual SIMM parts be ridiculous. i could buy the system, us
the system to be sure the memory does something and send them the
memories alone for reasonable shipping. It would also net them a backup
hard drive which are very scarce in even good times as well.
I'm hoping that the memories were common to other systems and not some
oddball special IBM part. Old advertisements that show up on google
show a number of people making them, but that doesn't mean they can be
found now of course.
thanks
jim
I'm starting the long process of selling off my entire collection. There's
a lot to go through. Some more details are here:
http://www.vcfed.org/forum/showthread.php?55964-Selling-Off-the-Collection
And some photos are here:
http://s350.photobucket.com/user/Sellam_Abraham/library/
Keep in mind the machines represented here are the cream of the crop. I
have much more stuff in the form of 40 pallets that needs to get sorted
through and moved on. I'll be much more inclined to sell off that stuff
quickly, but with these I am ready to take my time. That being said, I'll
entertain any reasonable offer.
I still have a bunch of photos of magazines to post (just scratching the
surface). Pallets worth.
Probably best to contact me directly if you're interested in something. I
have much, much more.
Thanks for looking!
Sellam
How much is the - -Bell Labs MAC-8 Microprocessor Trainer Kit
thanks Ed#
In a message dated 1/25/2017 11:01:50 P.M. US Mountain Standard Time,
sellam.ismail at gmail.com writes:
I'm starting the long process of selling off my entire collection.
There's
a lot to go through. Some more details are here:
http://www.vcfed.org/forum/showthread.php?55964-Selling-Off-the-Collection
And some photos are here:
http://s350.photobucket.com/user/Sellam_Abraham/library/
Keep in mind the machines represented here are the cream of the crop. I
have much more stuff in the form of 40 pallets that needs to get sorted
through and moved on. I'll be much more inclined to sell off that stuff
quickly, but with these I am ready to take my time. That being said, I'll
entertain any reasonable offer.
I still have a bunch of photos of magazines to post (just scratching the
surface). Pallets worth.
Probably best to contact me directly if you're interested in something. I
have much, much more.
Thanks for looking!
Sellam
Several people asked me about archive pages for past Vintage Computer
Festival events. Much of the information was lost during a rebuild of
the former Festival owner's web site, however, much of the same
information was also available at Archive.org. Tonight we posted about
50% of the basic date from past Festivals -- when, where, who -- at
http://vcfed.org/wp/festivals/archives-show-summaries/. (It would be a
HUGE amount of work to post the exact web sites from past Festivals, and
there's not much point to saving the logistical information about what
time of day people will speak, etc., so what we are posting seems like a
good balance.) We hope to get the remaining 50% onto the page soon. PS.
You'll notice that the page is being populated from the bottom-up. No
particular reason why.
________________________________
Evan Koblentz, director
Vintage Computer Federation
a 501(c)3 educational non-profit
evan at vcfed.org
(646) 546-9999
www.vcfed.orgfacebook.com/vcfederationtwitter.com/vcfederation
