rudoff@MDI.COM (Doug Rudoff) (06/20/91)
Does anyone sell RAM disks for DEC machines? We're currently using 5810s, 5000s and 3100s. I imagine there might be a plug in card for a machine or maybe even a SCSI device. (The reason is to improve performance on our disk-bound activities). -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Doug RUDOFF Motorola Mobile Data Bothell, WA uunet!mdisea!rudoff (206) 487-5937 rudoff@mdi.com -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
ajc@thendara.pa.dec.com (AJ Casamento) (06/20/91)
In article <1991Jun19.233703.23637@MDI.COM> rudoff@MDI.COM (Doug Rudoff) writes: >> Does anyone sell RAM disks for DEC machines? I would suggest that you contact: DILOG 1555 South Sinclair 714.937.5700 Anaheim, CA 92806 714.978.2421 FAX They have a product called SA807-CACHEbox that provides up to 64MB of dynamic, rapid-access storage. It is intended to be used in combination with a SCSI disk drive. They have reportedly tested it against the Ultrix SCSI driver on the DS3100s and DS5000/200s. Another lead that I have seen running on our systems at trade shows but don't know much about are: Western Automation P.O. Box 3438 Boulder, CO 80307 303.449.6400 303.939.8844 FAX John Ives, Product Manager >> We're currently using 5810s, 5000s and 3100s. >> I imagine there might be a plug in card for a machine or maybe even a >> SCSI device. >> (The reason is to improve performance on our disk-bound activities). While I can't make any claims or guarantees for these folks, they do seem like pretty reasonable folks (technically). I hope that the information helps. Thanx, AJ ********************************************************************** * AJ Casamento "The question is not whether or * * Digital's TRI/ADD Program not the opinions are mine; but * * 100 Hamilton Ave. UCO1-B rather, which of my personalities * * Palo Alto, CA 94301-1616 do they belong to?" * * 415.853.6744 * * ajc@decwrl.dec.com * **********************************************************************
grunwald@foobar.colorado.edu (Dirk Grunwald) (06/21/91)
I used a western automation ram disk for a short while (someone locally was beta-testing it, I think) and found it to be slower than my Wren V drive, which in synchronous and has a cache. I think it didn't have a very good SCSI controller. I think I found that it did better on very longer transfers, where it could amortize the scsi overhead, but it never really did all that much better than my Wren that I was impressed with it -- I would rather have had the 32Mb in my system cabinet. Of course, they may have fixed this, and/or I may have mis-installed it (although it did come up in synch scsi) or something. For the money, I think buying one og the lightening drives would make more sense, or putting the ram in the cabinet. Dirk Grunwald -- Univ. of Colorado at Boulder (grunwald@cs.colorado.edu) `` I will make my own system or be slave to another man's '' - William Blake
brent@uwovax.uwo.ca (Brent Sterner) (06/21/91)
In article <AJC.91Jun20085808@thendara.pa.dec.com>, ajc@thendara.pa.dec.com (AJ Casamento) writes: > In article <1991Jun19.233703.23637@MDI.COM> rudoff@MDI.COM (Doug Rudoff) writes: > >>> Does anyone sell RAM disks for DEC machines? You should also consider Executive Software's I/O Express. I tried a demo copy for a month and really loved what I saw. Unfortunately the cost was deemed too high by our management. The demo tape lists their phone as (818) 547-2050. Standard disclaimer: I have no affiliation with ES other than being upset that we couldn't afford the product for my system. Cheers, b. -- Brent Sterner Manager, Academic Technical Support Fast: <BRENT@uwo.ca> <BRENT@UWOVAX.BITNET> <129.100.2.13> Telephone (519)661-2151 x6036 Slow: Computing & Communications Services, Natural Sciences Building The University of Western Ontario, London, Ontario, Canada N6A 5B7