leclair@herky.cs.uiowa.edu (Jeanne Leclair) (04/29/91)
I need to install a WrenIV 327 meg disk on a SPARCstation (1+) and it needs to be seen by the system as sd4, sd5 or sd6. The problem is that it was sd3 on another system and I don't have any documentation on the jumper setting to change that. I tried some trial and error but I couldn't determine a pattern. The jumpers I've been dealing with are on the back, lower right-hand corner. There appears to be 7 in a row, grouped 5 and 2, from the left (though it just looks like they are together unless you look closely.) If anyone can tell me about these jumper settings I'd be grateful. Thanks in advance. Mail would be best because this question is likely to have a very limited audience. Jeanne leclair@herky.cs.uia.edu
crook@runx.oz.au (Jim Crook) (05/10/91)
> From: leclair@herky.cs.uiowa.edu (Jeanne Leclair) > I need to install a WrenIV 327 meg disk on a SPARCstation (1+) and it > needs to be seen by the system as sd4, sd5 or sd6. The problem is that it > was sd3 on another system and I don't have any documentation on the jumper > setting to change that. I had exactly this same query when I wanted to run four external WrenIV disks on my SPARCstaion 1. I can't understand why this information wasn't supplied with the hardware. Anyway, I got Sun here in Sydney to fax me required information. What I have is `page numbers' "DISK-18" and "DISK-19" of the "Field Engineers Handbook", "Technical Volume I". At the top of both pages it says, "CONFIGURATIONS" and "5/90". I shall try and reproduce the essential info here. End view of drive +------------------------------------------------------------+ | | | | | | | | | | | | | "J4" "J3" +---------+ | | ::::: : : |DC POWER | | | P 421 +---------+ | | |<------ SCSI Connector --------->| ::"J5" | +------------------------------------------------------------+ What you want is "J4" (jumper 4). "J4" has its pins labeled "P", (not used), "4", "2", and "1", reading left to right. "4", "2", and "1" do what you expect they would, and it all flies - or, at least it did for me. I did, however, have to generate a new kernel to support 5 SCSI disks, instead of 4. I highly recommend getting a hard copy of this from Sun [what if I made a typo :-)]. More importantly, I strongly urge Sun to supply this kind of information without having to be asked for it. Jim Crook ACSnet,Ean,CSnet: crook@runxtsa.runx.oz.au RUNX Unix Timeshare Arpa: crook%runxtsa.runx.oz.au@UUNET.UU.NET Wahroonga NSW 2076 Janet: crook%runxtsa.runx.oz.au@UK.AC.UKC Australia UUCP:{uunet,mcvax}!munnari!runxtsa.runx.oz.au!crook