Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/5/84; site aecom.UUCP Path: utzoo!watmath!clyde!burl!ulysses!allegra!mit-eddie!genrad!decvax!mcnc!philabs!aecom!yechiel From: yechiel@aecom.UUCP (Yechiel Corn) Newsgroups: net.unix-wizards,net.periphs,net.misc Subject: need help with 11/750 config for 4.2 Message-ID: <832@aecom.UUCP> Date: Fri, 21-Sep-84 18:31:15 EDT Article-I.D.: aecom.832 Posted: Fri Sep 21 18:31:15 1984 Date-Received: Sat, 29-Sep-84 09:47:02 EDT Distribution: net Organization: Albert Einstein Coll. of Med., NY Lines: 17 We are planning to run 4.2 on an 11/750. We want to equip it with an RA-80 with UDA-50 controller, TU-80 tape drive, 1 DZ, and an Able DH/DM. Is it possible/advisable to put all this on one UBA? There are enough backplane slots; this is not the issue. DEC has a UDA-50 driver for Sys V, and it specifies that it requires its own UBA. They say its because the UDA-50 uses up too many Address Map Registers on the Unibus and as a result, the kernel would be severely limited in size. Does this same restriction apply to 4.2? Any helpful hints or pointers would be appreciated Please respond directly by mail to {philabs,ihnp4,cucard,rocky2}!aecom!yechiel Thanks in advance! Michael Corn