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OpenVMS Hobbyist Program | VAX Systems Forums | VAX Hardware Forum
Author HSD05 tastes in disks
saq
Member

Posts: 53
Joined: 24.05.08
Posted on May 24 2008 19:39
Given the relative dearth of DSSI equipment in the NW USA, I hacked in a HSD05 SBB to my VAX 4000/200 so I could use SCSI disks (don't worry - it's reversible. HSD05 module removed from the SBB holder and attached to a plate that fits in the drive sled tracks in the top of the BA430, with a 50-pin pin header soldered into the HSD05 and a loop cable connecting to the backplane at one end and the original backplane->bulkhead connector on the other. SCSI and power brought in via a custom perfboard DIN-96 breakout board. Disks mounted on another "sled plate" and power brought out from the TK70 sled power connector).

Anyway, after a bit of use the first drive (a Sun OEM Seagate ST34371WC) would often fail to boot (b dia100 would go 2.. and then stop), and later it didn't even come up as an option under "show dev". I immediately suspected my DIN96 adaptor board (erm, actually after worrying that I'd blown my HSD05 and turned the 4000 into a doorstop), but replacing the Sun drive with a RZ01-xx 4.5GB unit started it working just fine. Tests of the Sun drive in a Sun have so far come back OK.

And now for the question: Do the HSD devices only work reliably with DEC-firmware disks? Do they require a firmware tweak (such as some CD-ROM drives have, e.g. the SGI drives for 4Ds that pass themselves off as hard drives so the PROM will boot from them), or was this just one oddity?
Author RE: HSD05 tastes in disks
saq
Member

Posts: 53
Joined: 24.05.08
Posted on May 25 2008 15:25
So in general I shouldn't need to worry about keeping a stock of true-(beige? burgundy?) DEC disks around as replacements. Good, makes it a bit easier. I'm running v7.3, so SCSI support should be good. How much of the SCSI-ness is exposed to the VAX, though? It sounded like the HSD05 took care of much of that.
Author RE: HSD
ADKMicroVAX
Member

Posts: 7
Location: Upstate NY
Joined: 03.01.08
Posted on May 29 2008 13:33
I've never really run an HSD05 but I have run systems HSD10... VERY fussy on the disks it will "see"... 4.3 GB and below in the putty color bricks. I have also run SE scsi on an MV4000-100A to a BS35x storage shelf... it only sees half the slots(every other one) but allows you access to at least 18GB disks :-). I've been buying the dec bricks on eBay for quite some time for $10 plus shipping... not worth the time or potential data loss in making non-dec firmware disks work.


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LouF91
April 05 2018
ah maybe they love that!

malmberg
March 24 2018
Probably. More people hang out on the comp.os.vms newsgroup.

vaxpert
March 23 2018
I have a PE42A and other Alpha system stuff for sale. I'm in So California. Any interest out there?

goodbyespy
February 27 2018
To Prohorenko. Please, visit group OpenVMS in the ok.ru

peteherrera
February 24 2018
How much does it cost to buy a complete OpenVMS hardcopy documentation set of the latest version

prohorenko
February 17 2018
Please help to obtain the license on OpenVMS

malmberg
December 12 2017
HPE only makes the most current version of OpenVMS Alpha / IA64 /VAX available to hobbyists. When I had access to the Alliance 1 program it was the same. No public downloads are allowed by HPE.

nmbonao
December 08 2017
Is anybody knows OpenVMS 8.2 version downloadable version? or CD copy? Thank you very much

aarommes
December 02 2017
Bitcoin and Blockchain enthusiasts ( plus distributed computing ) please connec / reply: http://www.openvmshobbyis
t.com/forum/viewthread.ph
p?forum_id=130&thread_id=
2991


malmberg
September 10 2017
https://sourceforge.net/p
/vms-ports/wiki/VMSInstal
lation/ For the most part just use VMS 6.1 media instead of 7.3. But why run the older release?


DoeveR
August 07 2017
Where can I find the write up on running VMS 6.1 using the simh emulator?

Bart
March 20 2017
Happy to have found my password again!

pintero
March 16 2017
peteherrera. Agreed.

peteherrera
March 04 2017
It would be nice to be able to buy the lastest hardcopy full OpenVMS docset at a very reduced price through the Hobbyist program. smiley

malmberg
February 05 2017
Decus > Connect > Encompass<Country>

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