<!DOCTYPE html><html><head><title></title><style type="text/css">p.MsoNormal,p.MsoNoSpacing{margin:0}</style></head><body><div><span class="font" style="font-family:verdana, sans-serif, sans-serif;">Wow, all this SCSI talk sure sends me down memory lane.</span><span class="font" style="font-family:verdana, sans-serif, sans-serif;"> So, Trevor, let's add another twist: You didn't mention the distinction between active and passive terminators. (The active ones are superior, and usually have a nice glowing diode/LED indicator when they are functioning properly.)<br></span></div><div style="font-family:verdana, sans-serif;"><span class="font" style="font-family:verdana, sans-serif, sans-serif;"><br></span></div><div style="font-family:verdana, sans-serif;"><span class="font" style="font-family:verdana, sans-serif, sans-serif;">Hartmut</span><span class="font" style="font-family:verdana, sans-serif, sans-serif;"><br></span></div><div style="font-family:verdana, sans-serif;"><span class="font" style="font-family:verdana, sans-serif, sans-serif;"><br></span></div><div style="font-family:verdana, sans-serif;">On Thu 12 Jan 2023 at 18:08:38 -06:00, Trevor Cordes <<a href="mailto:trevor@tecnopolis.ca">trevor@tecnopolis.ca</a>> wrote:<br></div><blockquote type="cite" id="qt" style=""><div style="font-family:verdana, sans-serif;">On 2023-01-12 Alberto Abrao wrote:<br></div><div style="font-family:verdana, sans-serif;">> <br></div><div style="font-family:verdana, sans-serif;">> I am not very familiar with SCSI, It may be easier for me to just <br></div><div style="font-family:verdana, sans-serif;">> explain what I want to do.<br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">Haha, welcome to the very simple and carefree world of SCSI.<br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">> - IBM TotalStorage Ultrium Tape Drive (3580-L23). <br></div><div style="font-family:verdana, sans-serif;">> <a href="https://www.ibm.com/support/pages/overview-ibm-totalstorage-ultrium-tape-drive-3580-l2">https://www.ibm.com/support/pages/overview-ibm-totalstorage-ultrium-tape-drive-3580-l2</a><br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">Ultra160 is 68 pin, LVD and wide. It says the tape itself can push<br></div><div style="font-family:verdana, sans-serif;">20MB/s, up to 40 if you luck out on compression. So really any lvd<br></div><div style="font-family:verdana, sans-serif;">fast wide card should run it at max speed.<br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">> - SCSI Cable. One ends seems to connect on the drive, the other one <br></div><div style="font-family:verdana, sans-serif;">> would connect to the card, presumably.<br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">Did you check if your cable can connect to external box? And the cable<br></div><div style="font-family:verdana, sans-serif;">is the same on both sides? Should look like a super-dense connector.<br></div><div style="font-family:verdana, sans-serif;">You can match it up with pictures online.<br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">The IBM spec says they supplied a terminator with the drive. That<br></div><div style="font-family:verdana, sans-serif;">probably means the drive itself doesn't do optional self-termination<br></div><div style="font-family:verdana, sans-serif;">(bummer). Is the 2nd connector on the drive case filled with a<br></div><div style="font-family:verdana, sans-serif;">terminator? I do not have any 68 pin terminators. They are rare.<br></div><div style="font-family:verdana, sans-serif;">Might be easier to find another external 68 pin SCSI device that can do<br></div><div style="font-family:verdana, sans-serif;">self-termination and put that on the end of the chain. :-)<br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">I have these cards that offer 68-pin external connectors you can<br></div><div style="font-family:verdana, sans-serif;">borrow. Oh, btw, you'll need a box with PCI. Almost no old-style SCSI<br></div><div style="font-family:verdana, sans-serif;">cards exist for PCIe, certainly none that people have just kicking<br></div><div style="font-family:verdana, sans-serif;">around.<br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">With external 68-pin:<br></div><div style="font-family:verdana, sans-serif;">IBM RS/6000 PCI 11H8085 AN011H8083 NCR 53C825 chipset sym53c8xx<br></div><div style="font-family:verdana, sans-serif;">Tekram DC-390F Symbios Logic 53C875<br></div><div style="font-family:verdana, sans-serif;">Those 2 will get you only get you 20MB/s, but that should be fine<br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">With only internal 68-pin:<br></div><div style="font-family:verdana, sans-serif;">Adaptec ASC-29160N PCI (suports 160MB/s)<br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">But the internal-only one can be turned into external with:<br></div><div style="font-family:verdana, sans-serif;">SCSI CABLE internal to external 68 pin; 3 drop internal, 1 drop<br></div><div style="font-family:verdana, sans-serif;">external on metal slot bracket; int68-int68-int68-ext68<br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">Loving SCSI yet?<br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">If the Ultrium drive doesn't need to be kept in mint condition, I often<br></div><div style="font-family:verdana, sans-serif;">find it's best to crack open the external SCSI case those things are in,<br></div><div style="font-family:verdana, sans-serif;">take out the bare drive, and plug it into your SCSI setup internally,<br></div><div style="font-family:verdana, sans-serif;">using your normal PS power for it. Much easier to do internal<br></div><div style="font-family:verdana, sans-serif;">termination. I have many internal 68 pin cables with terminators<br></div><div style="font-family:verdana, sans-serif;">built-in or tacked on.<br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">If you can't find an external terminator or a device that can self<br></div><div style="font-family:verdana, sans-serif;">terminate to put on the chain, then your only choice is converting to<br></div><div style="font-family:verdana, sans-serif;">internal.<br></div><div style="font-family:verdana, sans-serif;"><br></div><div style="font-family:verdana, sans-serif;">_______________________________________________<br></div><div style="font-family:verdana, sans-serif;">Roundtable mailing list<br></div><div style="font-family:verdana, sans-serif;"><a href="mailto:Roundtable@muug.ca">Roundtable@muug.ca</a><br></div><div style="font-family:verdana, sans-serif;"><a href="https://muug.ca/mailman/listinfo/roundtable">https://muug.ca/mailman/listinfo/roundtable</a><br></div><div style="font-family:verdana, sans-serif;"><br></div></blockquote></body></html>