rmg@ultra.com (Rich Geiger) (10/25/90)
I have a CDC WREN II 150Mb (9 surface) drive which I want to format (and install a SCSI driver on), for use with a Mac Plus. Has anyone out there done this? I have SF&I and can seem to get the drive to format, but, apparently after formatting, something fails (writing the driver or DPM/DDM?), resulting in a System Error 19. I also have a question about Unit Attention. This drive apparently provides the Unit Attention feature, and can *not* be configured to turn it off. From some of the notes that come with SF&I, it seems that this can cause problems for Mac Plus's with "old ROMs". Can anybody tell me whether there are indeed different versions of Mac Plus ROMS that affect whether Unit Attention is or is not a problem? If so, can you also tell me what version(s) of the ROMs include the fix? I still have some things to fiddle with in an attempt to get it going, but would be massively grateful if anybody else out there has already invented this whell and could help me avoid a reinvention. -- - Rich Geiger Ultra Network Technologies / 101 Daggett Drive / San Jose CA 95134 rmg@ultra.com ...!ames!ultra!rmg (408) 922-0100 [w] (408) 739-7911 [h] -- - Rich Geiger Ultra Network Technologies / 101 Daggett Drive / San Jose CA 95134 rmg@ultra.com ...!ames!ultra!rmg (408) 922-0100 [w] (408) 739-7911 [h]
russotto@eng.umd.edu (Matthew T. Russotto) (10/26/90)
In article <1990Oct25.024925.26023@ultra.com> rmg@ultra.com (Rich Geiger) writes: >I also have a question about Unit Attention. This drive apparently >provides the Unit Attention feature, and can *not* be configured to >turn it off. From some of the notes that come with SF&I, it seems that >this can cause problems for Mac Plus's with "old ROMs". Can anybody >tell me whether there are indeed different versions of Mac Plus ROMS >that affect whether Unit Attention is or is not a problem? If so, can >you also tell me what version(s) of the ROMs include the fix? Get the MacEnvy CDEV, and get it to report which ROM version you have. It will report Lonely Hearts, Lonely Hearse, Lonely Heifer, or Loud Harmonica. Loud Harmonica is the only ROM version which will boot drives with Unit Attention. If you aren't booting off the big drive, it shouldn't matter. -- Matthew T. Russotto russotto@eng.umd.edu russotto@wam.umd.edu Tax the rich, and feed the poor -- until there are, rich no more.