Firstly, many thanks for the dozen of people who helped me to understand all this SCSI terminology mess. The sunmanager list is truly amazing, I would not hope getting such a quick and valuable help from Sun support. Now for my question, I'm 100% sure that X1062A and L3500 DLT are HVD. The confusion comes from the "Differential" label, which, left alone, means HVD only. Even if LVD is differential too, it is never labeled "Differential", but "LVD" or "LVD/SE" if compatible with SE. So the L3500 link on SunHandBook is wrong stating that X1062A is LVD. I also double-check the connectors on the rear side of the L3500, there are HVD diamonds (there are 4 types : SE, HVD, LVD, LVD/SE). Aaron Taylor also has the same X1062A card and confirmed this is an HVD card. Finally, I will quote Ben Rockwood's answer as it gives many useful information. Thanks again. This is an HVD device. Search Sun.com for ISP1000 and you get a PDF manual for the " SBus Wide Intelligent Ultra SCSI Diff Host Adapter Guide ". Generally speaking, if you just see the words " Differential " it's HVD. Because LVD devices are also SE compatable it's either not pointed out thatit's LVD or it's explicetly said LVD not just Diff. I understand your frustration, I went thru this too awhile back. Just a refresher for you... 1) HVD can not support Single Ended (SE or normal SCSI) devices. 2) LVD can support both LVD and SE devices 3) LVD and HVD are not in any way compatable, you can not put LVD devices on a HVD controller, and you can not put HVD devices on a LVD controller. In this way you can think of there being 2 destinct forms of SCSI: LVD/SE and HVD. 4) You can tell which is which in 2 ways. First, HVD cables are much thicker than LVD/SE cables usually. Second, look at the SCSI symbol. To refresh yourself on SCSI symbols look here (http://scsifaq.paralan.com/scsifaqanswers4.html <http://scsifaq.paralan.com/scsifaqanswers4.html> ) at the bottom of the page. Notice, HVD has a < outside the SCSI dimond, whereas the LVD has it inside. Whenever you see that angle outside the dimand your looking at an HVD device. Never mix LVD and HVD because of diffrence in voltages you can do serious damage. As for getting part numbers from the OS, you can't rely on it, sometimes it'll be there, sometimes it won't. If it's not, take the part description (in this case QLGC,ISP1000) and look it up in the FE Handbook (http://sunsolve.sun.com/handbook_pub/ <http://sunsolve.sun.com/handbook_pub/> ) to see what you find. Good luck, hope this helps. benr. --- Sebastien DAUBIGNE sdaubigne@bordeaux-bersol.sema.slb.com <mailto:sdaubigne@bordeaux-bersol.sema.slb.com> - (+33)5.57.26.56.36 SchlumbergerSema - SGS/DWH/Pessac -----Message d'origine----- De: DAUBIGNE Sebastien - BOR ( SDaubigne@bordeaux-bersol.sema.slb.com ) [SMTP:SDaubigne@bordeaux-bersol.sema.slb.com] Date: mercredi 3 dicembre 2003 19:11 @: sunmanagers@sunmanagers.org Objet: FOLLOW-UP : How to identify LVD/HVD for a SCSI SBUS card ? Well, in spite of all useful information you send to me (many thanks), I'm still a bit confused : On the robotic side (L3500), there is a "double diamond" logo on each SCSI connector, with a "SCSI Diff" label : that should mean "HVD", right ? On the server side (E6500), I have cards which were bought with reference "X1062A". I checked on Sunsolve, but there are two contradictory labels for "X1062A" - On the E6500 link (http://sunsolve.sun.com/handbook_pub/Systems/L3500/component.scsi.html <http://sunsolve.sun.com/handbook_pub/Systems/L3500/component.scsi.html> ) the label is "Differential Fast/Wide SCSI-2 (DWIS/SBus)(LVD)" : that should mean "LVD" ?? - On the L3500 link (http://sunsolve.sun.com/handbook_pub/Systems/E6500/component.scsi.html <http://sunsolve.sun.com/handbook_pub/Systems/E6500/component.scsi.html> ) the label is "Differential Fast/Wide SCSI-2 Host Adapter (DWIS/S)" : that should mean "HVD" ?? The card has "ISP1000" chip, and the chip is labeled "Single Ended or Differential" : that should mean "HVD", right ? I suspect the "LVD" term in the L3500 link to be wrong, am I right ? --- Sebastien DAUBIGNE sdaubigne@bordeaux-bersol.sema.slb.com <mailto:sdaubigne@bordeaux-bersol.sema.slb.com> - (+33)5.57.26.56.36 SchlumbergerSema - SGS/DWH/Pessac -----Message d'origine----- De: DAUBIGNE Sebastien - BOR ( SDaubigne@bordeaux-bersol.sema.slb.com ) [SMTP:SDaubigne@bordeaux-bersol.sema.slb.com] Date: mercredi 3 dicembre 2003 14:38 @: sunmanagers@sunmanagers.org; sunhelp@sunhelp.org Objet: How to identify LVD/HVD for a SCSI SBUS card ? Hi, Our E6500 has 2 SBUS F/W SCSI Differential cards, connected to a Sun StorEdge L3500 DLT robotic device. The problem is : I don't know if the cards are LVD or HVD ? Here is the "prtdiag"output for theses 2 cards : 9 SBus 25 0 QLGC,isp/sd (block) QLGC,ISP1000 9 SBus 25 1 QLGC,isp/sd (block) QLGC,ISP1000 I don't know how to get the Part Number from the OS. Any idea ? --- Sebastien DAUBIGNE sdaubigne@bordeaux-bersol.sema.slb.com <mailto:sdaubigne@bordeaux-bersol.sema.slb.com> - (+33)5.57.26.56.36 SchlumbergerSema - SGS/DWH/Pessac _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagersReceived on Wed Dec 3 14:49:39 2003
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