Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!att!tsdiag!scr1!pechter From: pechter@scr1.ocpt.ccur.com (Bill Pechter) Newsgroups: comp.sys.dec Subject: Re: Hard Drives for PDP11/23 Summary: The RKV11 was 16 BITS only Message-ID: <509@scr1.ocpt.ccur.com> Date: 2 Oct 89 21:39:57 GMT References: <5075@shlump.nac.dec.com> Reply-To: pechter@scr1.UUCP (Bill Pechter) Distribution: na Organization: CONCURRENT COMPUTER,OCEANPORT NJ Lines: 30 I'm trying to keep this down to minimum bandwidth... For the Following disks here's what I know about controllers... Control Data 9762 Try Emulex and Dilog. DEC RK07 There's no DEC Qbus controller. Qbus to Unibus adapters will let you run this but it's unwieldy. A number of controllers emulate these with 9762's. DEC RL05 (I think) No such drive. If you mean RK05, the controller you want is an RKV11. Unfortunatly, this has only 16 bit addressing. Memory management doesn't work with the beast because there's only 16 bits in the address register. Support is in the software and a hardware hacker can bus the stuff to the 2 bits that are not used in the register if you're good and have prints. A friend made the mods to one I had on an 11/23 that used to be an 11/03. Bill (ex DEC Field Service) -- Bill Pechter -- Home - 103 Governors Road, Lakewood, NJ 08701 (201)370-0709 Work -- Concurrent Computer Corp., 2 Crescent Pl, MS 172, Oceanport,NJ 07757 Phone -- (201)870-4780 Usenet . . . rutgers!pedsga!tsdiag!scr1!pechter ** MS-DOS is CP/M on steroids, bigger bulkier and not much better **