I remember this beast from a job I once had. The drives (2, 200 MB each IIRC) were connected to a Regnecentralen RC8000 (a danish system, used in the USA primarily by airlines for booking systems). It had to deal with the full workload of a company dealing with bathtubs, piping, and all other things to be used in bathrooms, etc. The second drive was used solely for data, such as invoices, personel, etc. ALL programs, system files, swap files or whatever was on the first drive, and as the system had only 256K, there was a "lively traffic" to and from the drive. It was also used as a development system for 3 programmers. The first invoice run to be executed on that system, took over 24 hours to complete ! In the mean time, the disk had moved about half a meter sideways. The only reason for not being in the other end of the machine room, was the length of the cables connected to the drive. Nico

I've seen 9766'es and I'd like to check out the 9762 sometime too. I take care of the all-go/no-show problem of nonremovables by having one drive partially dismantled, for show and it's twin all set up for running. To me the inside of a Fujitsu M2351A Eagle is as impressive machinery as a Harley engine. John A.

On Wednesday 08 Oct 2003 6:10 pm, Tom Uban wrote: Sweet, could you give me an insight into how the shock indicator works? alex/melt

On Fri, 10 Oct 2003, Tom Uban wrote: There was/is another variety that used a hard ball that was held in place on an indent by a spring. The spring was chosen such that an impact up to so many G's would retain the ball in position under a blow in a lateral (to the spring/ball axis) direction. The units could be used for either vertical or lateral shock sensing making allowance for the weight of the ball when used to sense vertical shock. Very crudely -------------\ W - indent o - ball - / - spring / / - don

Curt vendel had uttereth on Wednesday 08 October 2003 11:37 am: Hey, I think I'm looking for an SMD QBUS card for use in one of my VAX/ PDP-11 systems. I've got a CDC 9448 drive that I'd love to get hooked up to *something*. I've got some cash to offer, or other DEC/IBM/Sun parts/ machines available for trade. Next on the list. I've just recently got a VAXstation 3520 from someone else at Purdue. I've taken it apart, looked at the maintenance manuals, and boards, and made some guesses. Even though it claims to only support two cpu boards (4 CVAX CPUs), it looks very likely that the hardware at least will work with up to (at most) 5 boards/10 CPUs. I'm working on trying to find more CPU boards to test this idea out at the moment, and am interested in borrowing or buying more CPU boards or VAXstation 3520/2540s. If you don't want to sell the thing, I'd be interested in just borrowing the CPU module for a week or two to test out software/ firmware support. Again, I've got things I can trade for this if desired. Also, if anyone has any memory boards they'd like to sell/trade, that'd be nice. I'm not sure 16MB will be enough for a Multiprocessor VAX. : ) As far as trades go, ask me if I have what you want, I've got a bunch of stuff that is taking up too much space right now... Mostly IBM/DEC/Sun (Sparc 32) things. -- Pat PLUG Vice President -- http://plug.purdue.org Slackware Linux -- http://slackware.com Purdue University Research Computing -- http://www.itap.purdue.edu/rcs