INFO-VAX Mon, 03 Mar 2008 Volume 2008 : Issue 126 Contents: Re: anal/disk/shadow weirdnes Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? RE: Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? RE: Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? Re: Can a MicroVAX 3100 run on 208V? Re: DCPS downloadable? Re: Did I miss Infiniband clusters? Drives for HSG80 Re: Drives for HSG80 Re: Leap Year Re: Long term archiving of VMS stuff Re: Long term archiving of VMS stuff Re: Long term archiving of VMS stuff Re: Long term archiving of VMS stuff Re: Long term archiving of VMS stuff Re: newgroup decline Re: Noob File-Transfer (License to .com) Question Re: Noob File-Transfer (License to .com) Question Re: Noob File-Transfer (License to .com) Question Re: Noob File-Transfer (License to .com) Question Re: Swapping new disks into a shadow set Re: Swapping new disks into a shadow set Re: Swapping new disks into a shadow set Re: Swapping new disks into a shadow set Re: Wide drives on VAXstation 4000-60 Re: Wide drives on VAXstation 4000-60 Re: Wide drives on VAXstation 4000-60 ---------------------------------------------------------------------- Date: Mon, 3 Mar 2008 01:17:34 -0800 (PST) From: Volker Halle Subject: Re: anal/disk/shadow weirdnes Message-ID: <1dc3e6b0-a0b8-42b0-bcaf-9f5e21c1b790@m36g2000hse.googlegroups.com> Does ANAL/DISK/READ also report those parity errors ? I also interpret ANAL/DISK/SHADOW help in such a way, that you can limit the data it's comparing with the /BLOCKS qualifier. If you specifiy just /BLOCKS, FILE_SYSTEM is the default option for /BLOCKS. If you don't specify /BLOCKS (or specify /BLOCKS=ALL), all disk blocks will be compared. Volker. ------------------------------ Date: Mon, 3 Mar 2008 05:28:10 -0800 (PST) From: AEF Subject: Can a MicroVAX 3100 run on 208V? Message-ID: <3054152c-eea7-4234-aefd-643c8608df45@s8g2000prg.googlegroups.com> Our new data center will have 208 Volt power. Can my MicroVAX systems run on that? The specs in the manual say 100 - 120 V ac or 220 V to 240 V ac. The label on the power supply also says that. But I'm told that 208 V will work fine. Is that right? If not, what can I do? Bonus question: Since when does computer equipment run on 208 Volts? Thanks! ------------------------------ Date: 3 Mar 2008 08:10:36 -0600 From: lederman@encompasserve.org (B. Z. Lederman) Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: In article <3054152c-eea7-4234-aefd-643c8608df45@s8g2000prg.googlegroups.com>, AEF writes: > Our new data center will have 208 Volt power. Can my MicroVAX systems > run on that? The specs in the manual say 100 - 120 V ac or 220 V to > 240 V ac. The label on the power supply also says that. But I'm told > that 208 V will work fine. Is that right? If not, what can I do? Probably not. Check to see if there is a switch on the MicroVAX that changes it between the two voltage settings. If there is, then it won't run correctly on 208. For several years now, just about all of the computer and related equipment I've seen comes with switching power supplies that can run on just about anything from 100 to 250 volts: but such equipment is clearly labeled as such. A MicroVAX is almost certainly too old to have such a power supply, and I wouldn't run one on anything but what the label says. > Bonus question: Since when does computer equipment run on 208 Volts? The really old equipment that ran on three phase power ran on 208, in a manner of speaking. I would expect this to be 120 / 208 volt 3 phase, which means each phase is 120 volts to common, and 208 volts between phases. If so, then the power people ought to be able to supply you with standard 120 volt power. If they can't, then somebody is doing something very wrong, and you need to get a real expert in to find out what's going on. -- B. Z. Lederman. My personal opinions. ------------------------------ Date: 3 Mar 2008 14:17:32 GMT From: billg999@cs.uofs.edu (Bill Gunshannon) Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: <632fjsF257ok7U2@mid.individual.net> In article <3054152c-eea7-4234-aefd-643c8608df45@s8g2000prg.googlegroups.com>, AEF writes: > Our new data center will have 208 Volt power. Can my MicroVAX systems > run on that? The specs in the manual say 100 - 120 V ac or 220 V to > 240 V ac. The label on the power supply also says that. But I'm told > that 208 V will work fine. Is that right? If not, what can I do? > > Bonus question: Since when does computer equipment run on 208 Volts? Apparently VAX 76xx series did. I found this at a DEC reseller's site, might be the answer if this is business and spendign money can be justified. 3KVA UPS 208V in 120V out 4N-AEAAH-AM Company is called Innovative Peripheral Systems and I know nothing about them but what Google found. bill -- Bill Gunshannon | de-moc-ra-cy (di mok' ra see) n. Three wolves billg999@cs.scranton.edu | and a sheep voting on what's for dinner. University of Scranton | Scranton, Pennsylvania | #include ------------------------------ Date: Mon, 03 Mar 2008 06:22:15 -0800 From: "Tom Linden" Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: On Mon, 03 Mar 2008 05:28:10 -0800, AEF wrote: > Our new data center will have 208 Volt power. Can my MicroVAX systems > run on that? The specs in the manual say 100 - 120 V ac or 220 V to > 240 V ac. The label on the power supply also says that. But I'm told > that 208 V will work fine. Is that right? If not, what can I do? > > Bonus question: Since when does computer equipment run on 208 Volts? > > Thanks! 240 is single phase, 208 is what you get with three phase, the latter being more efficient in terms of losses, since voltage and current are 120 out of phase. -- PL/I for OpenVMS www.kednos.com ------------------------------ Date: Mon, 3 Mar 2008 06:35:38 -0800 (PST) From: AEF Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: On Mar 3, 10:10 am, leder...@encompasserve.org (B. Z. Lederman) wrote: > In article <3054152c-eea7-4234-aefd-643c8608d...@s8g2000prg.googlegroups.com>, AEF writes: > > > Our new data center will have 208 Volt power. Can my MicroVAX systems > > run on that? The specs in the manual say 100 - 120 V ac or 220 V to > > 240 V ac. The label on the power supply also says that. But I'm told > > that 208 V will work fine. Is that right? If not, what can I do? > > Probably not. Check to see if there is a switch on the > MicroVAX that changes it between the two voltage settings. If > there is, then it won't run correctly on 208. There's no such switch. The manual says this (verbatim this time): Input voltage Automatically adjusting ac input. Range: 100 V ac to 120 V ac or 220 V ac to 240 V ac. OK, since it says "automatically adjusting" and since I was told 208 V was "the same thing as 220" I thought it might work. > > For several years now, just about all of the computer and > related equipment I've seen comes with switching power supplies > that can run on just about anything from 100 to 250 volts: but > such equipment is clearly labeled as such. A MicroVAX is almost > certainly too old to have such a power supply, and I wouldn't run > one on anything but what the label says. OK. I'll bring this up with my manager. > > > Bonus question: Since when does computer equipment run on 208 Volts? > > The really old equipment that ran on three phase power ran on > 208, in a manner of speaking. I would expect this to be 120 / > 208 volt 3 phase, which means each phase is 120 volts to common, > and 208 volts between phases. If so, then the power people ought > to be able to supply you with standard 120 volt power. If they > can't, then somebody is doing something very wrong, and you need > to get a real expert in to find out what's going on. I'll check. Thanks for your advice! > > -- > B. Z. Lederman. My personal opinions. ------------------------------ Date: Mon, 3 Mar 2008 06:35:59 -0800 (PST) From: AEF Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: <0290ff88-429f-47e9-adf8-4b073f60f9a2@s37g2000prg.googlegroups.com> On Mar 3, 10:17 am, billg...@cs.uofs.edu (Bill Gunshannon) wrote: > In article <3054152c-eea7-4234-aefd-643c8608d...@s8g2000prg.googlegroups.com>, > AEF writes: > > > Our new data center will have 208 Volt power. Can my MicroVAX systems > > run on that? The specs in the manual say 100 - 120 V ac or 220 V to > > 240 V ac. The label on the power supply also says that. But I'm told > > that 208 V will work fine. Is that right? If not, what can I do? > > > Bonus question: Since when does computer equipment run on 208 Volts? > > Apparently VAX 76xx series did. > > I found this at a DEC reseller's site, might be the answer if this > is business and spendign money can be justified. > > 3KVA UPS 208V in 120V out 4N-AEAAH-AM > > Company is called Innovative Peripheral Systems and I know nothing about > them but what Google found. > > bill > > -- > Bill Gunshannon | de-moc-ra-cy (di mok' ra see) n. Three wolves > billg...@cs.scranton.edu | and a sheep voting on what's for dinner. > University of Scranton | > Scranton, Pennsylvania | #include I'll take a look. Thanks! ------------------------------ Date: Mon, 3 Mar 2008 06:59:10 -0800 (PST) From: Bob Gezelter Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: On Mar 3, 9:35 am, AEF wrote: > On Mar 3, 10:17 am, billg...@cs.uofs.edu (Bill Gunshannon) wrote: > > > > > In article <3054152c-eea7-4234-aefd-643c8608d...@s8g2000prg.googlegroups.com>, > > AEF writes: > > > > Our new data center will have 208 Volt power. Can my MicroVAX systems > > > run on that? The specs in the manual say 100 - 120 V ac or 220 V to > > > 240 V ac. The label on the power supply also says that. But I'm told > > > that 208 V will work fine. Is that right? If not, what can I do? > > > > Bonus question: Since when does computer equipment run on 208 Volts? > > > Apparently VAX 76xx series did. > > > I found this at a DEC reseller's site, might be the answer if this > > is business and spendign money can be justified. > > > 3KVA UPS 208V in 120V out 4N-AEAAH-AM > > > Company is called Innovative Peripheral Systems and I know nothing about > > them but what Google found. > > > bill > > > -- > > Bill Gunshannon | de-moc-ra-cy (di mok' ra see) n. Three wolves > > billg...@cs.scranton.edu | and a sheep voting on what's for dinner. > > University of Scranton | > > Scranton, Pennsylvania | #include > > I'll take a look. Thanks! AEF, As Bart commented, 208 (at least in North America) is multi-phase, composed of multiple single 110 volt phases. The electricians should be able to properly split off single phases for the (large amount of) equipment that is single phase. - Bob Gezelter, http://www.rlgsc.com ------------------------------ Date: Mon, 3 Mar 2008 09:57:33 -0500 From: "Dan Allen" Subject: RE: Can a MicroVAX 3100 run on 208V? Message-ID: <000301c87d3e$e96bf570$1f3a0681@sdct.nist.gov> > -----Original Message----- > From: Tom Linden [mailto:tom@kednos.company] > Sent: Monday, March 03, 2008 9:22 AM > To: Info-VAX@Mvb.Saic.Com > Subject: Re: Can a MicroVAX 3100 run on 208V? > > On Mon, 03 Mar 2008 05:28:10 -0800, AEF > wrote: > > > Our new data center will have 208 Volt power. Can my > MicroVAX systems > > run on that? The specs in the manual say 100 - 120 V ac or 220 V to > > 240 V ac. The label on the power supply also says that. But > I'm told > > that 208 V will work fine. Is that right? If not, what can I do? > > > > Bonus question: Since when does computer equipment run on 208 Volts? > > > > Thanks! > > 240 is single phase, 208 is what you get with three phase, > the latter being more efficient in terms of losses, since > voltage and current are 120 out of phase. > > -- > PL/I for OpenVMS > www.kednos.com > This subject can get confusing in short order. POCO service from a Wye wound 3 phase transformer is 208V/120V - common in commercial settings. Phase to phase voltage is 208V which is commonly used for commercial lighting. Phase conductor to neutral in Wye service is 120V for your standard wall outlets. POCO service from a Delta wound 3 phase transformer provides 240V phase to phase and 120V phase to neutral - popular for electric motor applications like compressors and machine tools. Dan ------------------------------ Date: Mon, 03 Mar 2008 15:19:16 GMT From: gerry77@no.spam.mail.com Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: <354os3lo7hfbqt7303751r438rc38atrat@4ax.com> On Mon, 3 Mar 2008 05:28:10 -0800 (PST), AEF wrote: > Our new data center will have 208 Volt power. Can my MicroVAX systems > run on that? The specs in the manual say 100 - 120 V ac or 220 V to > 240 V ac. The label on the power supply also says that. But I'm told > that 208 V will work fine. Is that right? If not, what can I do? As far as I know, NO. Your MicroVAX should use single-phase power, while 208 volts power in your data center should be three-phase. Anyway, from 208 volts three-phase power it's possible to "extract" single-phase 120 volts power. 208 / sqrt(3) = 120 (rounded, in US) 400 / sqrt(3) = 230 (rounded, in Europe) See also: http://en.wikipedia.org/wiki/Mains_electricity http://en.wikipedia.org/wiki/Three-phase_electric_power HTH, G. ------------------------------ Date: Mon, 3 Mar 2008 11:09:37 -0500 From: "Dan Allen" Subject: RE: Can a MicroVAX 3100 run on 208V? Message-ID: <000301c87d48$faf42240$1f3a0681@sdct.nist.gov> > -----Original Message----- > From: AEF [mailto:spamsink2001@yahoo.com] > Sent: Monday, March 03, 2008 8:28 AM > To: Info-VAX@Mvb.Saic.Com > Subject: Can a MicroVAX 3100 run on 208V? > > Our new data center will have 208 Volt power. Can my MicroVAX > systems run on that? The specs in the manual say 100 - 120 V > ac or 220 V to 240 V ac. The label on the power supply also > says that. But I'm told that 208 V will work fine. Is that > right? If not, what can I do? > > Bonus question: Since when does computer equipment run on 208 Volts? > > Thanks! > In case I wasn't clear in my previous response it sounds like your data center has 208V 3 phase service from the power company. This is a very common (e.g. "standard") form of service for commercial buildings. It provides 208V power which is a common voltage for commercial lighting systems. It also provides 120V power for standard wall outlets in the office spaces. So set your mVax switch to 120V and plug it into any standard 120V wall outlet. If you want/need to run the machine at 240V your plant people will need to install an appropriate transformer and circuit inside the data center. You do not need to buy a 208V UPS to get 120V power - you already have it. Dan ------------------------------ Date: Mon, 3 Mar 2008 10:48:45 -0600 (CST) From: sms@antinode.org (Steven M. Schweda) Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: <08030310484576_20200512@antinode.org> From: "Tom Linden" > 240 is single phase, 208 is what you get with three phase, the latter > being more efficient in terms of losses, since voltage and current are > 120 out of phase. You should stick to software. ------------------------------------------------------------------------ Steven M. Schweda sms@antinode-org 382 South Warwick Street (+1) 651-699-9818 Saint Paul MN 55105-2547 ------------------------------ Date: 3 Mar 2008 11:10:16 -0600 From: koehler@eisner.nospam.encompasserve.org (Bob Koehler) Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: In article <3054152c-eea7-4234-aefd-643c8608df45@s8g2000prg.googlegroups.com>, AEF writes: > Our new data center will have 208 Volt power. Can my MicroVAX systems > run on that? The specs in the manual say 100 - 120 V ac or 220 V to > 240 V ac. The label on the power supply also says that. But I'm told > that 208 V will work fine. Is that right? If not, what can I do? > > Bonus question: Since when does computer equipment run on 208 Volts? There's more than one way to measure AC voltage. If you put your AC voltmeter into your 208V lines you may actually measure 220V. ------------------------------ Date: Mon, 03 Mar 2008 09:37:15 -0800 From: "Tom Linden" Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: On Mon, 03 Mar 2008 06:59:10 -0800, Bob Gezelter wrote: > On Mar 3, 9:35 am, AEF wrote: >> On Mar 3, 10:17 am, billg...@cs.uofs.edu (Bill Gunshannon) wrote: >> >> >> >> > In article >> <3054152c-eea7-4234-aefd-643c8608d...@s8g2000prg.googlegroups.com>, >> > AEF writes: >> >> > > Our new data center will have 208 Volt power. Can my MicroVAX >> systems >> > > run on that? The specs in the manual say 100 - 120 V ac or 220 V to >> > > 240 V ac. The label on the power supply also says that. But I'm told >> > > that 208 V will work fine. Is that right? If not, what can I do? >> >> > > Bonus question: Since when does computer equipment run on 208 Volts? >> >> > Apparently VAX 76xx series did. >> >> > I found this at a DEC reseller's site, might be the answer if this >> > is business and spendign money can be justified. >> >> > 3KVA UPS 208V in 120V out 4N-AEAAH-AM >> >> > Company is called Innovative Peripheral Systems and I know nothing >> about >> > them but what Google found. >> >> > bill >> >> > -- >> > Bill Gunshannon | de-moc-ra-cy (di mok' ra see) n. Three >> wolves >> > billg...@cs.scranton.edu | and a sheep voting on what's for dinner. >> > University of Scranton | >> > Scranton, Pennsylvania | #include >> >> I'll take a look. Thanks! > > AEF, > > As Bart commented, 208 (at least in North America) is multi-phase, > composed of multiple single 110 volt phases. > > The electricians should be able to properly split off single phases > for the (large amount of) equipment that is single phase. > > - Bob Gezelter, http://www.rlgsc.com Not quite right, see my post -- PL/I for OpenVMS www.kednos.com ------------------------------ Date: Mon, 03 Mar 2008 09:49:00 -0800 From: "Tom Linden" Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: On Mon, 03 Mar 2008 06:57:33 -0800, Dan Allen wrote: > >> -----Original Message----- >> From: Tom Linden [mailto:tom@kednos.company] >> Sent: Monday, March 03, 2008 9:22 AM >> To: Info-VAX@Mvb.Saic.Com >> Subject: Re: Can a MicroVAX 3100 run on 208V? >> >> On Mon, 03 Mar 2008 05:28:10 -0800, AEF >> wrote: >> >> > Our new data center will have 208 Volt power. Can my >> MicroVAX systems >> > run on that? The specs in the manual say 100 - 120 V ac or 220 V to= >> > 240 V ac. The label on the power supply also says that. But >> I'm told >> > that 208 V will work fine. Is that right? If not, what can I do? >> > >> > Bonus question: Since when does computer equipment run on 208 Volts= ? >> > >> > Thanks! >> >> 240 is single phase, 208 is what you get with three phase, >> the latter being more efficient in terms of losses, since >> voltage and current are 120 out of phase. >> >> -- >> PL/I for OpenVMS >> www.kednos.com >> > > This subject can get confusing in short order. POCO service from a Wye= = > wound 3 > phase transformer is 208V/120V - common in commercial settings. Phase = to = > phase > voltage is 208V which is commonly used for commercial lighting. Phase = = > conductor > to neutral in Wye service is 120V for your standard wall outlets. POCO= = > service > from a Delta wound 3 phase transformer provides 240V phase to phase an= d = > 120V > phase to neutral - popular for electric motor applications like = > compressors and > machine tools. Yes, it does, we aren't as well standardised as the European there phase= = to phase (They don't have single phase AFAIK) 380V/sqrt(3) =3D 220 V I don't see how the Delta works unless that have a separate winding, 240= = phase to phase would need 208 phase to neutral. sqrt(3)/2 * 240 > > Dan > -- = PL/I for OpenVMS www.kednos.com ------------------------------ Date: Mon, 3 Mar 2008 17:51:28 +0000 (UTC) From: moroney@world.std.spaamtrap.com (Michael Moroney) Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: AEF writes: >Our new data center will have 208 Volt power. Can my MicroVAX systems >run on that? The specs in the manual say 100 - 120 V ac or 220 V to >240 V ac. The label on the power supply also says that. But I'm told >that 208 V will work fine. Is that right? If not, what can I do? If this is a standard US 3 phase system, you'll have the usual 120 volts between any line and the neutral, and 208 volts between any two lines. Just hook the Microvax to a line-neutral circuit. In other words, to an ordinary electrical outlet. >Bonus question: Since when does computer equipment run on 208 Volts? 208Y/120 volts is the most common three phase electrical service in the US. Most smaller loads run at 120V line to neutral. The 220-240V option is for most of the rest of the world where the line-neutral voltage is in that range. You may see larger equipment racks with a plug using two or all three phases, esp. overengineered DEC stuff. If you investigate, you'll see it broken down into multiple 120V (US) circuits, except if there's a refrigerator-sized CPU or something involved which runs on 3 phase. ------------------------------ Date: Mon, 3 Mar 2008 10:25:46 -0800 (PST) From: FrankS Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: On Mar 3, 8:28=A0am, AEF wrote: > Our new data center will have 208 Volt power. Can my MicroVAX systems > run on that? Not for very long. :-) ------------------------------ Date: Mon, 3 Mar 2008 10:44:12 -0800 (PST) From: chrisj.doran@proemail.co.uk Subject: Re: Can a MicroVAX 3100 run on 208V? Message-ID: <3669c0ca-1a78-4217-888d-b97750e74a3b@u10g2000prn.googlegroups.com> On 3 Mar, 14:28, AEF wrote: > Our new data center will have 208 Volt power. Can my MicroVAX systems > run on that? The specs in the manual say 100 - 120 V ac or 220 V to > 240 V ac. It depends which bit of which manual you read: The MicroVAX 3100 and VAXServer 3100 Owner's Manual, EK-A0371.OM.002 dated August 1989 contradicts itself. On page 2-9 it says: "The system will accept power inputs in the ranges 100/120 VAC and _200_/240 VAC at 50 or 60 Hertz. Within these limits the power supply is self-sensing and no selection or switching is required." However, Appendix D says _220_-240. The /40 and /80 manuals don't say anything about voltage in the "plug it in" section, but the specification appendixes also say 100/120 VAC and _220_/240 . OTOH the 1990 Systems and Options catalogue says (for /10 and /20) "Universal Power Supply that automatically adjusts to 90-130V AC or 180-260V AC." Since DEC overengineering should have allowed for an intermediate voltage (130-180V) under brownout conditions, I wouldn't expect any harm to come from just trying it. You might want to unplug the disk drives, which are the only things with the slightest change of coming to any harm through undervoltage. Power it up on 208V and check that the 5V and 12V supplies are about right. But, of course, this may all be irrelevant given what others have been saying about 3-phase notations. Chris ------------------------------ Date: Mon, 03 Mar 2008 13:50:05 -0500 From: Paul Anderson Subject: Re: DCPS downloadable? Message-ID: In article <7da53c14-68b5-49d1-a774-13ef37d0e0b9@s37g2000prg.googlegroups.com>, Rich Jordan wrote: > OpenVMS Alpha V8.3 includes DCPS 2.5 on the layered products disk. > I've been asked to see if getting V2.6 is possible without spending > unhealthy gobs of money on a CONDIST set. If you have an update contract, you can get the kits online at Paul -- Paul Anderson OpenVMS Engineering Hewlett-Packard Company ------------------------------ Date: Mon, 3 Mar 2008 13:02:40 -0500 From: norm.raphael@metso.com Subject: Re: Did I miss Infiniband clusters? Message-ID: This is a multipart message in MIME format. --=_alternative 00631EEF85257401_= Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable Rich Jordan wrote on 02/26/2008 05:41:29 PM: > On Feb 26, 4:41 pm, "Richard Maher" > wrote: > > Hi, > > > > IIRC there was talk a while back of HP working on Infiniband as a=20 cluster > > interconnect; whatever happened to that? It's just that someone in the > > c.l.cobol conference posted a couple of IBM links and it jogged my=20 memory. > > Maybe some kick-arse Orrible Oracle Cache-Fusion stats for VMS=20 clusters > > would go someway to highlighting Rdb's unhealthy and misguided=20 obsession > > with single-node configurations? > > > > HARDWARE: > > IBM System z10 Enterprise Class -- The forward-thinking mainframe=20 for the > > twenty-first century > > > >=20 http://www.ibm.com/vrm/newsletter=5F10577=5F2548=5F62970=5Femail=5FDYN=5F1I= N/WKle... > > > > OPERATING SYSTEM (preview) > > Preview: z/OS V1.10 -- Raising the bar and redefining scalability, > > performance, availability, and economics > > > >=20 http://www.ibm.com/vrm/newsletter=5F10577=5F2548=5F63032=5Femail=5FDYN=5F1I= N/WKle... > > > > Cheers Richard Maher >=20 > I think I remember a seminar some years ago down in the chi-pit here > in ill annoy where Terry Shannon was present and infiniband and ZLE > were discussed as up and coming. Never heard about it again though. From the current Roadmap: "Support of Clusters over TCP/IP ? Planned for OpenVMS V8.4 is support of=20 the passing of SCS (host-to-host cluster communication) over the TCP/IP=20 protocol through existing LAN adapters (rather than a specific SCS=20 protocol as is true today). This allows DT customers expanded flexibility = in terms of long-distance cluster communications options. "New Cluster Interconnect ? New IC Technologies ? OpenVMS will be working = on support for the latest low-latency interconnect technologies, targeted=20 at the Integrity Servers only. Current thinking is that RDMA/iWARP=20 technologies are candidates, although the goal is to align the VMS support = to the solution that will be embraced by the other HP O/S environments so=20 a ?standard? interconnect model is used." --=_alternative 00631EEF85257401_= Content-Type: text/html; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable



Rich Jordan <jordan@ccs4vms.com> wrote on 02/2= 6/2008 05:41:29 PM:

> On Feb 26, 4:41 pm, "Richard Maher" <maher...@hotspamnotm= ail.com>
> wrote:
> > Hi,
> >
> > IIRC there was talk a while back of HP working on Infiniband as a cluster
> > interconnect; whatever happened to that? It's just that someone in the
> > c.l.cobol conference posted a couple of IBM links and it jogged my memory.
> > Maybe some kick-arse Orrible Oracle Cache-Fusion stats for VMS clusters
> > would go someway to highlighting Rdb's unhealthy and misguided obsession
> > with single-node configurations?
> >
> > HARDWARE:
> >   IBM System z10 Enterprise Class -- The forward-thinking mainframe for the
> > twenty-first century
> >
> > http://www.ibm.com/vrm/newsletter=5F10577=5F2548=5F62970=5Femail= =5FDYN=5F1IN/WKle...
> >
> > OPERATING SYSTEM (preview)
> >   Preview: z/OS V1.10 -- Raising the bar and redefining scalability,
> > performance, availability, and economics
> >
> > http://www.ibm.com/vrm/newsletter=5F10577=5F2548=5F63032=5Femail= =5FDYN=5F1IN/WKle...
> >
> > Cheers Richard Maher
>
> I think I remember a seminar some years ago down in the chi-pit here > in ill annoy where Terry Shannon was present and infiniband and ZLE
> were discussed as up and coming.  Never heard about it again though.

From the current Roadmap:

"Support of Clusters over TCP/IP – Planne= d for OpenVMS V8.4 is support of the passing of SCS (host-to-host cluster communi= cation) over the TCP/IP protocol through existing LAN adapters (rather than a speci= fic SCS protocol as is true today).  This allows DT customers expanded flexibility in terms of long-distance cluster communications options.<= /font>

"New Cluster Interconnect – New IC Techno= logies –  OpenVMS will be working on support for the latest low-latency interconnect technologies, targeted at the Integrity Servers only.  Cu= rrent thinking is that RDMA/iWARP technologies are candidates, although the goal is to align the VMS support to the solution that will be embraced by the other HP O/S environments so a “standard” interconnect model is= used." --=_alternative 00631EEF85257401_=-- ------------------------------ Date: Mon, 03 Mar 2008 09:35:05 -0800 From: "Tom Linden" Subject: Drives for HSG80 Message-ID: I am currently uing 73.4 GB Seagate drives. Will larger drives, say 146 or 300GB work? Note I didn't say supported. Tom -- PL/I for OpenVMS www.kednos.com ------------------------------ Date: 3 Mar 08 13:11:58 EST From: cook@wvnvms.wvnet.edu (George Cook) Subject: Re: Drives for HSG80 Message-ID: In article , "Tom Linden" writes: > I am currently uing 73.4 GB Seagate drives. Will > larger drives, say 146 or 300GB work? Note I didn't > say supported. The HSG80 drive support matrix includes a number of 146GB drives. HSG software V86g-12 or later is required to support them. George Cook WVNET ------------------------------ Date: 3 Mar 2008 07:00:31 -0600 From: koehler@eisner.nospam.encompasserve.org (Bob Koehler) Subject: Re: Leap Year Message-ID: In article , Hein RMS van den Heuvel writes: > Unreachable. > If p1 is empty, then p2 must be empty Not true. In the following P1 will test as empty but not P2: $ @a.com "" beetle ------------------------------ Date: 3 Mar 2008 07:04:18 -0600 From: koehler@eisner.nospam.encompasserve.org (Bob Koehler) Subject: Re: Long term archiving of VMS stuff Message-ID: In article <47cb0c45$0$90268$14726298@news.sunsite.dk>, =?ISO-8859-1?Q?Arne_Vajh=F8j?= writes: > > I would assume they stop doing something if it is declared illegal > in court. > > If not because of proper respect for the law then because the risk > of not doing so would be too high. A great many people would follow that logic, but the EU's experience with Microsoft is otherwise. ------------------------------ Date: 3 Mar 2008 13:53:18 GMT From: billg999@cs.uofs.edu (Bill Gunshannon) Subject: Re: Long term archiving of VMS stuff Message-ID: <632e6dF257ok7U1@mid.individual.net> In article <47ca4969$0$31253$c3e8da3@news.astraweb.com>, JF Mezei writes: > VAXman- @SendSpamHere.ORG wrote: > >> This is one of the reasons that I'm reluctant to buy new intel based Macs. >> Am I or am I not paying Billzebub tax because a new Mac can run Weendoze? >> Nobody in the Apple camp has been able to clarify this. > > Intel based MACs use EFI as console environment. Windows does not > support EFI booting on its 8086 versions (32 or 64 bits versions). > > Intel Macs do not come with any windows licenses. You can buy a > shrinkwrapped version of Windows, and use the "bootcamp" software from > OS-X which customises a windows install partition with drivers and EFI > boot support. > > So you can safely buy an intel mac confident no money will go to > microsoft unless you go and buy a version of windows. > > You cannot buy an empty intel mac and just install Windows on it. It > needs bootcamp from OS-X. So, in essence, what you are saying is the if you want to buy MAC hardware you have to pay the MAC tax because without OS-X it won't boot something else. Now, I wonder where they learned a trick like that? bill -- Bill Gunshannon | de-moc-ra-cy (di mok' ra see) n. Three wolves billg999@cs.scranton.edu | and a sheep voting on what's for dinner. University of Scranton | Scranton, Pennsylvania | #include ------------------------------ Date: 03 Mar 2008 14:04:59 GMT From: VAXman- @SendSpamHere.ORG Subject: Re: Long term archiving of VMS stuff Message-ID: <47cc058a$0$15168$607ed4bc@cv.net> In article <632e6dF257ok7U1@mid.individual.net>, billg999@cs.uofs.edu (Bill Gunshannon) writes: >In article <47ca4969$0$31253$c3e8da3@news.astraweb.com>, > JF Mezei writes: >> VAXman- @SendSpamHere.ORG wrote: >> >>> This is one of the reasons that I'm reluctant to buy new intel based Macs. >>> Am I or am I not paying Billzebub tax because a new Mac can run Weendoze? >>> Nobody in the Apple camp has been able to clarify this. >> >> Intel based MACs use EFI as console environment. Windows does not >> support EFI booting on its 8086 versions (32 or 64 bits versions). >> >> Intel Macs do not come with any windows licenses. You can buy a >> shrinkwrapped version of Windows, and use the "bootcamp" software from >> OS-X which customises a windows install partition with drivers and EFI >> boot support. >> >> So you can safely buy an intel mac confident no money will go to >> microsoft unless you go and buy a version of windows. >> >> You cannot buy an empty intel mac and just install Windows on it. It >> needs bootcamp from OS-X. > >So, in essence, what you are saying is the if you want to buy MAC >hardware you have to pay the MAC tax because without OS-X it won't >boot something else. Now, I wonder where they learned a trick like >that? How is that a tax? -- VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)COM "Well my son, life is like a beanstalk, isn't it?" http://tmesis.com/drat.html ------------------------------ Date: 3 Mar 2008 14:42:26 GMT From: billg999@cs.uofs.edu (Bill Gunshannon) Subject: Re: Long term archiving of VMS stuff Message-ID: <632h2iF257ok7U3@mid.individual.net> In article <47cc058a$0$15168$607ed4bc@cv.net>, VAXman- @SendSpamHere.ORG writes: > In article <632e6dF257ok7U1@mid.individual.net>, billg999@cs.uofs.edu (Bill Gunshannon) writes: >>In article <47ca4969$0$31253$c3e8da3@news.astraweb.com>, >> JF Mezei writes: >>> VAXman- @SendSpamHere.ORG wrote: >>> >>>> This is one of the reasons that I'm reluctant to buy new intel based Macs. >>>> Am I or am I not paying Billzebub tax because a new Mac can run Weendoze? >>>> Nobody in the Apple camp has been able to clarify this. >>> >>> Intel based MACs use EFI as console environment. Windows does not >>> support EFI booting on its 8086 versions (32 or 64 bits versions). >>> >>> Intel Macs do not come with any windows licenses. You can buy a >>> shrinkwrapped version of Windows, and use the "bootcamp" software from >>> OS-X which customises a windows install partition with drivers and EFI >>> boot support. >>> >>> So you can safely buy an intel mac confident no money will go to >>> microsoft unless you go and buy a version of windows. >>> >>> You cannot buy an empty intel mac and just install Windows on it. It >>> needs bootcamp from OS-X. >> >>So, in essence, what you are saying is the if you want to buy MAC >>hardware you have to pay the MAC tax because without OS-X it won't >>boot something else. Now, I wonder where they learned a trick like >>that? > > How is that a tax? The same way having to pay MS to run Linux on a PC is an MS Tax. I am just amazed at how people willingly accept behavior from some companies that they condemn MS for. bill -- Bill Gunshannon | de-moc-ra-cy (di mok' ra see) n. Three wolves billg999@cs.scranton.edu | and a sheep voting on what's for dinner. University of Scranton | Scranton, Pennsylvania | #include ------------------------------ Date: 03 Mar 2008 16:47:48 GMT From: VAXman- @SendSpamHere.ORG Subject: Re: Long term archiving of VMS stuff Message-ID: <47cc2bb4$0$15206$607ed4bc@cv.net> In article <632h2iF257ok7U3@mid.individual.net>, billg999@cs.uofs.edu (Bill Gunshannon) writes: >In article <47cc058a$0$15168$607ed4bc@cv.net>, > VAXman- @SendSpamHere.ORG writes: >> In article <632e6dF257ok7U1@mid.individual.net>, billg999@cs.uofs.edu (Bill Gunshannon) writes: >>>In article <47ca4969$0$31253$c3e8da3@news.astraweb.com>, >>> JF Mezei writes: >>>> VAXman- @SendSpamHere.ORG wrote: >>>> >>>>> This is one of the reasons that I'm reluctant to buy new intel based Macs. >>>>> Am I or am I not paying Billzebub tax because a new Mac can run Weendoze? >>>>> Nobody in the Apple camp has been able to clarify this. >>>> >>>> Intel based MACs use EFI as console environment. Windows does not >>>> support EFI booting on its 8086 versions (32 or 64 bits versions). >>>> >>>> Intel Macs do not come with any windows licenses. You can buy a >>>> shrinkwrapped version of Windows, and use the "bootcamp" software from >>>> OS-X which customises a windows install partition with drivers and EFI >>>> boot support. >>>> >>>> So you can safely buy an intel mac confident no money will go to >>>> microsoft unless you go and buy a version of windows. >>>> >>>> You cannot buy an empty intel mac and just install Windows on it. It >>>> needs bootcamp from OS-X. >>> >>>So, in essence, what you are saying is the if you want to buy MAC >>>hardware you have to pay the MAC tax because without OS-X it won't >>>boot something else. Now, I wonder where they learned a trick like >>>that? >> >> How is that a tax? > >The same way having to pay MS to run Linux on a PC is an MS Tax. > >I am just amazed at how people willingly accept behavior from some >companies that they condemn MS for. There a big difference. M$ doesn't sell the hardware. Apple are selling their hardware and with it comes Apple OS X. If M$ was in the PeeCee biz and sold a PeeCee with Weendoze, I'd see no problem. Joe PeeCee maker, however, should not be folding into the price of his hardware a "tax" to M$ simply because it *could* run Weendoze. -- VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)COM "Well my son, life is like a beanstalk, isn't it?" http://tmesis.com/drat.html ------------------------------ Date: Mon, 03 Mar 2008 10:51:21 -0700 From: Keith Parris Subject: Re: newgroup decline Message-ID: JF Mezei wrote: > But now that there is very little invokvement from VMS engineering, and > very few new features in the pipeline, there isn't much to discuss. You apparently haven't been reading the Roadmap or the New Features manuals lately. There's still a strong stream of new releases and new features: consider support for IP as a native OpenVMS cluster interconnect, for example. There is a high level of activity in the OpenVMS IT Resource Center Forums, and I suspect much of the volume of technical discussions has moved from here to there. ------------------------------ Date: Mon, 3 Mar 2008 04:07:04 -0800 (PST) From: sampsal@gmail.com Subject: Re: Noob File-Transfer (License to .com) Question Message-ID: <961e1480-66b3-40fe-ac09-ee3a041c6613@59g2000hsb.googlegroups.com> What I have done is burnt my licenses (named ) onto a CD using my Mac (should work fine on Windows as well) in ISO 9660 format. I then pop the CD into the VMS box and mount it with the /OVERRIDE=ID and /UNDEF=(STREAM_LF:132) options and run the .COM files. So briefly: ------------------------------ Date: Mon, 3 Mar 2008 04:11:59 -0800 (PST) From: sampsal@gmail.com Subject: Re: Noob File-Transfer (License to .com) Question Message-ID: <3c230fbe-a63c-4a38-b057-98b4cd016496@e31g2000hse.googlegroups.com> On Mar 3, 12:07=A0pm, samp...@gmail.com wrote: > What I have done is burnt my licenses (named ) onto a > CD using my Mac (should work fine on Windows as well) in ISO 9660 > format. > > I then pop the CD into the VMS box and mount it with the /OVERRIDE=3DID, /= MEDIA=3DCDROM > and /UNDEF=3D(STREAM_LF:132) options and run the .COM files. > > So briefly: Oops, hit Send by accident, so the commands to issue are similar to the following: (This assumes there are two files on the CD, BASE.COM and LAYER.COM, and DKAxxx is your CD device) MOUNT DKAxxx: /OVERRIDE=3DID /MEDIA=3DCDROM /UNDEF=3D(STREAM_LF:132) @DKAxxx:BASE.COM @DKAxxx:LAYER.COM ------------------------------ Date: 3 Mar 2008 07:18:53 -0600 From: koehler@eisner.nospam.encompasserve.org (Bob Koehler) Subject: Re: Noob File-Transfer (License to .com) Question Message-ID: <1qAGnPIs+L$W@eisner.encompasserve.org> In article <6d1r95-q63.ln1@boss.home.folkerts-net.de>, Ralf Folkerts writes: > > What I did: I saved the License-Mail, removed the Headers etc. so that > only a Text-File containg the License-Info was left. As I work on Linux > I also converted the File to DOS-Formatm put both, the Unix- and the > DOS-Format into a iso-FS, burned that on CD and mounted on VMS. > Getting a DOS format file or a UNIX format file to read corretly from an ISO CD may depend on the proper use of /undefined_fat on the mount command: For the DOS file: $ mount/media_format=cdrom/undefined_fat=stream_cr device: label For the UNIX file: $ mount/media_format=cdrom/undefined_fat=stream device: label If you copy the file from the CD with it mounted without the correct /undefined_fat, you may be able to recover the data by doing DUMP and determining what meta-data is actually present in the file as well as whether any meta-data mangling occurred. Once the meta-data is mangled it's an unecessary PITA do fix it. ------------------------------ Date: 3 Mar 2008 07:21:05 -0600 From: koehler@eisner.nospam.encompasserve.org (Bob Koehler) Subject: Re: Noob File-Transfer (License to .com) Question Message-ID: In article , Ralf Folkerts writes: > > One more question: Once TCP/IP is up and running, can I painles transfer > the License-File and expect it to be of a valid Commandprocedure-File? > Or would I still have to perform some kind of conversion? You can painlessly transfer the file via FTP if it looks like a valid text file (no embedded ^M and no missing line breaks) on the original system and you specify ASCII (text) transfer format in your FTP client. FTP will convert to/from FTP standard ASCII transfer mode on both ends and the file will be correct on both ends. ------------------------------ Date: Mon, 3 Mar 2008 04:59:15 -0800 (PST) From: AEF Subject: Re: Swapping new disks into a shadow set Message-ID: <6b301b62-6494-4cbd-827c-eecb9e6d0947@b1g2000hsg.googlegroups.com> On Mar 2, 8:12 pm, tadamsmar wrote: > On Feb 29, 6:24 pm, AEF wrote: > > > > > On Feb 29, 5:03 pm, tadamsmar wrote: > > > > I will be replacing the 2 physical disk drives in a shadow set > > > shortly. > > > > The easiest way I can think of is to: > > > > 1. Dismount dka100: > > > 2. Power down > > > 3. Swap out dka100: > > > 4. Reboot on dka0: > > > 5. Merge the shadow set > > > 6. Dismount dka0: > > > 7. Power down > > > 8. Swap out dka0: > > > 9. Reboot on dka100: > > > 10. Merge the shadow set > > > > Is there a better way? > > > Are you doing minimum boots? Otherwise won't your startup procedure > > attempt to mount both disks in the shadow set? Or fail to mount either > > depending on your command? > > > Be sure not to include MOUNT commands for your system disk shadow set > > (if you have one) in your startup procedures. Otherwise you risk > > overwriting current data! (See the Vol. Shad. manual for the actual > > possible scenario.) > > > AEF- Hide quoted text - > > > - Show quoted text - > > I don't think any disks are added to the shadow set at startup. > > But I probably should make a tape image before I start this just for > safety. It's *system disk* shadow sets that you have to not do this for. System disk shadow sets are automatically reconstructed during the boot. Non-system disk shadows sets are not and *do* need commands in the startup procedures to mount. It's only *system disk* shadow sets that you should not have startup commands for. AEF AEF ------------------------------ Date: Mon, 3 Mar 2008 06:17:49 -0800 (PST) From: tadamsmar Subject: Re: Swapping new disks into a shadow set Message-ID: <197a2f1b-b6e6-4dc1-a231-7d20d0b79673@o77g2000hsf.googlegroups.com> A two member shadowset for the system disk. Not sure. The new drives should be about the same size, the vendor is sending them as replacements, I don't have the exact specs. There are 2 DS10s, not clustered. 7.3.2 VMS On Feb 29, 4:30=A0pm, Jim Mehlhop wrote: > I am assuming dka100 and dka0 are members of some shadowset. I am > guessing it is the system disk that you are shadowing but not sure. > Are the new drives the same size as the old drives? =A0Are we talking > about more than one system? =A0what version of VMS > > > > tadamsmar wrote: > > I will be replacing the 2 physical disk drives in a shadow set > > shortly. > > > The easiest way I can think of is to: > > > 1. =A0Dismount dka100: > > 2. =A0Power down > > 3. =A0Swap out dka100: > > 4. =A0Reboot on dka0: > > 5. =A0Merge the shadow set > > 6. =A0Dismount dka0: > > 7. =A0Power down > > 8. =A0Swap out dka0: > > 9. =A0Reboot on dka100: > > 10. =A0Merge the shadow set > > > Is there a better way?- Hide quoted text - > > - Show quoted text - ------------------------------ Date: Mon, 3 Mar 2008 06:57:40 -0800 (PST) From: tadamsmar Subject: Re: Swapping new disks into a shadow set Message-ID: <84903384-6eab-426f-b385-c9e163fe815a@s37g2000prg.googlegroups.com> On Mar 3, 7:59=A0am, AEF wrote: > On Mar 2, 8:12 pm, tadamsmar wrote: > > > > > > > On Feb 29, 6:24 pm, AEF wrote: > > > > On Feb 29, 5:03 pm, tadamsmar wrote: > > > > > I will be replacing the 2 physical disk drives in a shadow set > > > > shortly. > > > > > The easiest way I can think of is to: > > > > > 1. =A0Dismount dka100: > > > > 2. =A0Power down > > > > 3. =A0Swap out dka100: > > > > 4. =A0Reboot on dka0: > > > > 5. =A0Merge the shadow set > > > > 6. =A0Dismount dka0: > > > > 7. =A0Power down > > > > 8. =A0Swap out dka0: > > > > 9. =A0Reboot on dka100: > > > > 10. =A0Merge the shadow set > > > > > Is there a better way? > > > > Are you doing minimum boots? Otherwise won't your startup procedure > > > attempt to mount both disks in the shadow set? Or fail to mount either= > > > depending on your command? > > > > Be sure not to include MOUNT commands for your system disk shadow set > > > (if you have one) in your startup procedures. Otherwise you risk > > > overwriting current data! (See the Vol. Shad. manual for the actual > > > possible scenario.) > > > > AEF- Hide quoted text - > > > > - Show quoted text - > > > I don't think any disks are added to the shadow set at startup. > > > But I probably should make a tape image before I start this just for > > safety. > > It's *system disk* shadow sets that you have to not do this for. > System disk shadow sets are automatically reconstructed during the > boot. Non-system disk shadows sets are not and *do* need commands in > the startup procedures to mount. It's only *system disk* shadow sets > that you should not have startup commands for. If I understand correctly, my system does not do that. I am running 7.3.2. To make sure, I dismounted dka100 and rebooted. After the system came back up dka100 was still dismounted. There was a shadowset consisting of the boot disk dka0, but the dka100 member was not automatically added. > > AEF > > AEF- Hide quoted text - > > - Show quoted text - ------------------------------ Date: Mon, 3 Mar 2008 07:07:44 -0800 (PST) From: Volker Halle Subject: Re: Swapping new disks into a shadow set Message-ID: <837f3cfb-5c90-44ec-b9e9-26f7d68d9122@47g2000hsb.googlegroups.com> The system disk shadowset is automatically restored to the state is was in BEFORE the shutdown. So if you dismount DKA100: before shutdown, it will remain dismounted after the boot. Volker. ------------------------------ Date: Mon, 03 Mar 2008 08:17:53 +0100 From: Michael Kraemer Subject: Re: Wide drives on VAXstation 4000-60 Message-ID: Stanley F. Quayle schrieb: > On 29 Feb 2008 at 0:23, Chris Scheers wrote: > >>I have a need to set up a VAX test environment with 4GB drives. >>[...] [hardware pain omitted] >>Can anyone provide a suggestion on how to get this to work? Is there >>some switch setting I am missing? > > > You could "switch" to an emulation solution and ditch all the hardware... You could as well switch to emulated sex and ditch all the hardware ... ------------------------------ Date: Mon, 03 Mar 2008 20:27:42 +0200 From: =?ISO-8859-1?Q?Uusim=E4ki?= Subject: Re: Wide drives on VAXstation 4000-60 Message-ID: <47cc42ec$0$15002$9b536df3@news.fv.fi> FrankS wrote: > On Feb 29, 1:23 am, Chris Scheers wrote: >> Can anyone provide a suggestion on how to get this to work? Is there >> some switch setting I am missing? > > I remember there was this DWZZA thing, but I never used one. I > believe it will allow you to connect the VS4000 to a BA356 without the > BA35X. > > More info here: > http://vt100.net/mirror/mds-199909/cd3/storage/dwzzauga.pdf > > Then, you'd also have to go out and find one. Perhaps eBay or Island? In fact, the DWZZ*'s are Differential to Sigle-ended converters. DWZZA converts a 8-bit ("narrow") SE bus to a Differential bus and the DWZZB converts a 16-bit ("wide") SE bus to Differential. Usually they are used to connect a Differential Host Bus Adapter to a BA350 (8-bit) or to a BA356 (16-bit). In the former case would the DWZZA be the right converter and in the latter case the DWZZB. But in the actual case it is not needed. ------------------------------ Date: 3 Mar 2008 18:32:31 GMT From: billg999@cs.uofs.edu (Bill Gunshannon) Subject: Re: Wide drives on VAXstation 4000-60 Message-ID: <632uhvF2546kvU1@mid.individual.net> In article <47cc42ec$0$15002$9b536df3@news.fv.fi>, Uusimäki writes: > > In fact, the DWZZ*'s are Differential to Sigle-ended converters. > DWZZA converts a 8-bit ("narrow") SE bus to a Differential bus I would assume they are LVD. There isn't by any chance a jumper somewhere on these that would make them work with HVD, is there? :-) bill -- Bill Gunshannon | de-moc-ra-cy (di mok' ra see) n. Three wolves billg999@cs.scranton.edu | and a sheep voting on what's for dinner. University of Scranton | Scranton, Pennsylvania | #include ------------------------------ End of INFO-VAX 2008.126 ************************