butzer@CIS.OHIO-STATE.EDU (Dan Butzer) (08/06/90)
I spend most of my time supporting Sun hardware but I find myself having to deal with a little Apollo stuff. In the Sun (& HP9000) arena, it's possible to connect just about any 3rd party SCSI disk. last week I tried to connect a HP-97548E to a DN3500. The unit eventuly complained that the drive type was unrecognized. I have heard from usually reliable sources that Apollo likes to read MFG codes from disks, boards, etc, and lock out anything that they didn't sell. I'd appreciate it if someone out there could confirm/deny this. If they are low enough to really do this has anyone determined where to patch their verification routines or tables to replace one of their entries with one of my choosing? I hope Apollo users really aren't trapped to Apollo's repackaged peripherals. Please respond by mail and I'll Summarize to the net. Regards Dan butzer@cis.ohio-state.edu
butzer@rugby.cis.ohio-state.edu (Dan Butzer) (08/06/90)
In my previous post re: disks on DN3500, I failed to make it clear that I am
trying to install an ESDI disk (HP-97548E). We want to replace an old
Microp 1355...
--Dan
-=-
Dan Butzer || butzer@cis.ohio-state.edu
IICF/CIS Hardware Support || voice: 614-292-7350 fax: 614-292-9021
"Fire in the hole..." || 2036 Neil Ave, Columbus OH 43210krowitz@RICHTER.MIT.EDU (David Krowitz) (08/07/90)
The DN3000, DN3500, DN4000, and DN4500 only use EDSI disks. Although the Western Digitial WD7000 controller found in many of the more recently shipped DN3500's and DN4500's has a SCSI port on it, the disk controller portion of the board is an EDSI controller. The Apollo OS only supports tape drives attached to the SCSI port of the controller. -- David Krowitz krowitz@richter.mit.edu (18.83.0.109) krowitz%richter.mit.edu@eddie.mit.edu krowitz%richter.mit.edu@mitvma.bitnet (in order of decreasing preference)
krowitz@RICHTER.MIT.EDU (David Krowitz) (08/07/90)
Ah, well, that kind of negates my previous message ... Apollo's ESDI support is written for a particular set of drives which they support. Try running the program /systest/ssr_util/jumper to see which drives they support and how the drives are jumpered (both on the controller board and on the disk drive logic board). In addition, the CONFIG program (run from the mnemonic debugger with the EX CONFIG command) lists the set of drives which Apollo supports, but also (depending of the version) lists "other". I haven't tried "other" before ... see what you can get with it. -- David Krowitz krowitz@richter.mit.edu (18.83.0.109) krowitz%richter.mit.edu@eddie.mit.edu krowitz%richter.mit.edu@mitvma.bitnet (in order of decreasing preference)