On 7 Jul 2011, at 09:04, Mark Wickens <mark at wickensonline.co.uk> wrote:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=350475648545&ssPageNam…
Fully loaded RX4640 up for GBP 640, that would put a dent in your electricity bill.
Always amazed me that these came with only two drives built in, given the size of the case!
Yeah HP tend to push storage arrays onto people who use large servers like that.
There's a good case for plumbing the airflow into a room and using it for blown-air heating I thunk!
--
Mark Benson
http://markbenson.org/bloghttp://twitter.com/MDBenson
On 18 Jun 2011, at 09:21, H Vlems wrote:
Now I have a couple of VMS systems running which greatly improves my aging
memory ;-) And will keep my electricity meter spinning a lot faster too.
The contents of the DECW$PRIVATE_SERVER-SETUP.COM file:
$ set verify
$ decw$server_page_file== 160000
$ decw$xsize_in_pixels == 1280
$ decw$ysize_in_pixels == 1024
$ define/exec/system/nolog decw$server_pixel_depth 24
$ define/exec/system/nolog decw$server_refresh_rate 75
$ set noverify
Just as an FYI - I redid this tonight on my re-installed 500au and it worked a charm. I set the colour depth to 16 bit and the refresh rate to 60Hz and it works flawlessly. I have a better understanding of the system and how it handles COM files and of EVE as an editor now so maybe that helped. Amazing what some research and a bit of RTFM does for your skills!
Thanks anyhow, I can be a happy DECwindows user on the PSW 500au now :D
--
Mark Benson
My Blog:
<http://markbenson.org/blog>
Follow me on Twitter:
http://twitter.com/mdbenson
"Never send a human to do a machine's job..."
Do you know Mark?
http://www.homefacts.com/offender-detail/NY8689/Mark-D-Benson.html
Hopefully this is not him (he does us co.uk ebay urls)...
On Tue, Jul 5, 2011 at 12:16 PM, Sampsa Laine <sampsa at mac.com> wrote:
Also, always check whether the drive is full of NHS patient data or possibly one of the police authorities' sex offenders register. Hilarity will ensue.
I think The Sun pays like up to ten grand for tips :)
Sampsa
On 5 Jul 2011, at 17:13, Mark Wickens wrote:
> On 05/07/11 17:08, Mark Benson wrote:
>> On the subject if lacking any decent SCA drives, anyone got any *quiet* 36GB or 72GB SCAs lying around they could part with?
>>
> I've kept a watch on eBay for new SCA drives for a while now, and put a low bid in every now and again. I find that drives in specific enclosures for storage arrays, servers, etc. are the best bet and for some reason people don't seem to realise the drive in the enclosure is the same as if bought separate.
>
> I stick to HP or Compaq drives and *always* check the drives are sealed and secured - I've had too many incidents buying 'new' drives that turned out to be far from it.
>
> Good luck!
>
> Mark.
On 06/07/11 00:54, MG wrote:
On 6-7-2011 1:27, Mark Benson wrote:
Anyone any idea how loud these might be - bit worried 15k drives will be a bit whiny:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260808957717
Can't really tell but from the lids they look like Seagates.
It depends how new, or modern, the disk is and what quantity. All of my modern 15K (but
also 10K) disks, i.e. all of 73 GB and above, are almost silent compared to older disks.
Maybe I've been lucky, but this has been my experience so far.
These HP original disks in 'ring' sleds (like in the eBay auction) would typically belong
to the above category and are usually of great quality and not high-pitched. Surely not
louder than an rx2600/rx2620, zx6000 even, or let alone rx1600/rx1620 (needless to say,
of course).
- MG
Oh yes, and well spotted finding drives in the right sledges! This is no mean trick!
Bear in mind as always that guaranteed new drives are almost always quieter, but that 15k drives are going to be noisy compared with 10k/7.2k/5.4k rpm drives.
Even my laptop drive gets annoying sometimes.
(he says having spent the last 4 hours attempting to get a BA356 loaded with 5 36GB SBBs to talk succesfully to the 1000A also containing 6 drives. In the end the disk in slot 1 of the external enclosure was causing all sorts of horrible problems. Took much swapping of personality modules, cables, host adaptor cards, reflowing solder joints, pulling hair to determine the problem.)
Oh, and time.
Mark.
On 6-7-2011 1:27, Mark Benson wrote:
Anyone any idea how loud these might be - bit worried 15k drives will be a bit whiny:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260808957717
Can't really tell but from the lids they look like Seagates.
It depends how new, or modern, the disk is and what quantity. All of my modern 15K (but
also 10K) disks, i.e. all of 73 GB and above, are almost silent compared to older disks.
Maybe I've been lucky, but this has been my experience so far.
These HP original disks in 'ring' sleds (like in the eBay auction) would typically belong
to the above category and are usually of great quality and not high-pitched. Surely not
louder than an rx2600/rx2620, zx6000 even, or let alone rx1600/rx1620 (needless to say,
of course).
- MG
Mark Wickens wrote:
Whilst I'm thinking about it, does anyone have any Alphaserver 1000A
memory kicking around. I started getting a bit parity error a couple of
days ago (which the box helpfully pinpointed to an individual SIMM) but
had to pull all four SIMMs in the bank.
I also had a problem with memory in an Alphaserver 1000A. The firmware
did indeed narrow it down to an individual SIMM. However the diagram
inside the lid did not identify which SIMM was which, only the banks.
In the course of figuring out which SIMM was which by moving them around,
I found that the firmware sometimes lies about which SIMM is faulty :-(
If I put the SIMM which I eventually determined to be faulty into slot 2,
it got reported as a problem with slot 3 and despite trying all sorts of
permutations, I never found a way to make it report a problem with slot 2.
Problems with slots 0, 1 and 3 were correctly identified.
Someone kindly gave me a pdf of the owners guide since then which does
have a diagram of the memory layout with the individual SIMMs labelled
and I was able to confirm that I had correctly figured out which slot
was which.
The part number I'm looking for is: 50-21276-01-02, it's a 8MB x 36 SIMM
60ns EDO FPM, also listed as being for an AlphaServer 200 4/233.
My set of 3 spare working SIMMs arising from my one failed SIMM are marked:
"54-24123-AA 16MX36.60 Z" which doesn't seem to be what you need :-(
(My experience with ES40s is that they are very picky about memory and don't
like memory being mixed and matched. I don't know if this also applies to
the Alphaserver 1000A - hopefully not.)
Regards,
Peter Coghlan.
Just been through a bag of books:
Terminals and Communications Handbook, Digital Press, 1978
PDP-11 peripherals handbook, Digital Press, 1975
Computer Interfacing Accessories and Logic Handbook, Digital Press, 1978-79
PDP-11 Software Handbook, Digital Press, 1978
Terminals and Printers Handbook, Digital Press, 1983
PDP-11 Microcomputer Interfaces Handbook, Digital Press, 1983
Desiging a Distributed Processing System, Associated Business Press, 1979, Hamish Donaldson
A guide to the successful management of computer projects, Associated Business Press, 1978, Hamish Donaldson
OpenVMS and Digital UNIX Interoperability Guide, Digital Press, 1995
PDP-11 Architecture Handbook, Digital Press, 1983
PDP-11 Software Handbook, Digital Press, 1983
PDP-11 MICRO/PDP-11 Handbook, Digital Press, 1983
PDP-11 Bus Handbook, Digital Press, 1979
PDP-11 UNIBUS Processor Handbook, PDP-11/84, PDP-11/44 and PDP-11/24, Digital Press,
