INFO-VAX Thu, 24 Apr 2008 Volume 2008 : Issue 228 Contents: Re: DS10L bootable IDE/Compact Flash option? Re: DS10L bootable IDE/Compact Flash option? Re: DS10L bootable IDE/Compact Flash option? Re: HSD52 dead reduced raidset Re: HSD52 dead reduced raidset Re: Intel Itanium RAS Comparison with X86 Re: Intel Itanium RAS Comparison with X86 Re: Intel Itanium RAS Comparison with X86 Re: Intel Itanium RAS Comparison with X86 Re: MCR clusterwide SHOW TIME ---------------------------------------------------------------------- Date: Wed, 23 Apr 2008 10:50:36 -0700 (PDT) From: Rod Subject: Re: DS10L bootable IDE/Compact Flash option? Message-ID: <0c6c7131-5c0b-4db6-8ff3-aa7e8e12b941@b1g2000hsg.googlegroups.com> On Apr 23, 2:12=A0pm, "David Turner, Island Computers" wrote: > We had some that worked with Alpha DS10 and other alpha systems that had. > The SD cards worked but we had loads of errors on CF I'm not fixated on CF. "Plain CD" goes up to 4GBy. Any specific product model/mfgr detail for the successful SD offerings? ------------------------------ Date: Wed, 23 Apr 2008 10:52:43 -0700 (PDT) From: Rod Subject: Re: DS10L bootable IDE/Compact Flash option? Message-ID: On Apr 23, 1:56=A0pm, "FredK" wrote: > You are correct. =A0The error message indicates that the SRM coudn't open = the > device - so it never got to the point of trying to read from it. =A0What d= oes > SHOW DEVICE from the SRM console give you? As indicated in my original post, SHO DEVICE displayed: >>>sho dev dqa0.0.0.13.0 DQA0 SAMSUNG CF/ATA 04/05/06 (white space removed to avoid wrapping). I have no idea why it displays 04/05/06 ------------------------------ Date: 23 Apr 2008 15:49:12 -0500 From: koehler@eisner.nospam.encompasserve.org (Bob Koehler) Subject: Re: DS10L bootable IDE/Compact Flash option? Message-ID: In article <480f4e8b$0$7267$c3e8da3@news.astraweb.com>, JF Mezei writes: > > or does backup/image take care of this ? Backup/image will take care of this for you. ------------------------------ Date: 23 Apr 2008 15:23:07 -0500 From: koehler@eisner.nospam.encompasserve.org (Bob Koehler) Subject: Re: HSD52 dead reduced raidset Message-ID: In article , "Richard B. Gilbert" writes: > > Well, it shows that Digital made, or at least supplied, good stuff. I'm > not sure that I would want to have that drive in any sort of critical > service. Has that drive been powered up more or less continuously? Or > has it been sitting on the shelf most of the time? Except for occaisional unannounced power outages those drives run all the time. ------------------------------ Date: Wed, 23 Apr 2008 20:31:05 -0400 From: "William Webb" Subject: Re: HSD52 dead reduced raidset Message-ID: <8660a3a10804231731y1ca20be0ic28184cdacb41759@mail.gmail.com> On Tue, Apr 22, 2008 at 8:38 PM, Richard B. Gilbert wrote: > > Antonio Carlini wrote: > > > "Richard B. Gilbert" wrote in > > news:LOednXulcqgIe5DVnZ2dnUVZ_umdnZ2d@comcast.com: > > > > > Bob Koehler wrote: > > > > > > > Most likely the electronics failed but the platters still held the > > > > data. > > > > > > > > > > > I suppose it happens that way occasionally. I'm not convinced, > > > however, that it is a common failure mode. Given a decent environment > > > to work in, the electronics can be expected to outlast the moving > > > parts by a substantial margin. > > > > > > > I've sold two old (working but no longer required) drives on a "popular > internet auction site". In both cases the kinds of questions I was asked > made me suspect that they were being used as donors. In both cases I was > right and in both cases the buyer sent an email thanking me for saving the > data. Someone in the office has also sucessfully performed a board-ectomy > and recovered data. > > > > So electronics failure certainly does happen. > > > > Another spurious data point while I'm here. When RAID fails spectacularly, > the failure mode always seems to be: drive failed, swapped in a spare, > second drive died before the replacement had had enough copied on to it. > > I don't know whether RAID 6 will help, since I suspect that as the 2nd > replacement drive is coming online a 3rd one will die (drives tend to be > installed all together and all from the same batch, so they're roughly the > same age and have done roughly the same amount of work, so I'm never > surprised that they often decide to peg it synchronously!). > > > > This suggests, to me, that people are expecting more than the hardware can > deliver. Five years of service from a drive is quite a lot. In the case of > the very latest 15,000 RPM drives, it's probably two or three lifetimes! > > Where possible, I would try to retire older drives to non-critical service. > Drives are not THAT expensive, especially when compared with the cost of > restoring a few hundred gigabytes that may, or may not, have been backed up > recently. My personal experience suggests that backups will not be done > unless someone is cracking the whip!! > We spend several million dollars a year on our backups. WWWebb ------------------------------ Date: 23 Apr 2008 15:34:43 -0500 From: koehler@eisner.nospam.encompasserve.org (Bob Koehler) Subject: Re: Intel Itanium RAS Comparison with X86 Message-ID: In article <480f4afe$0$31175$c3e8da3@news.astraweb.com>, JF Mezei writes: > Not asking stuff specific to JSTARs: Are there any concerns about hard > disk drives being used in aircraft, especially military ones that may be > called to make "interesting "manoeuvers that create a couple of Gs or go > through turbulence etc ? I doubt JSTARS or other large military aircraft go though any maneuvers that your laptop can't survive, but I'm not so sure about fighters. A couple of Gs, whether from turbulence or other, should not be a problem for a laptop drive. I know I've done worse to my laptop. I do know that we've looked at using laptop drives for space flight. Some company buys lots of laptop drives and qualifies them to see which will make it. I don't know of anyone who's actually done it. ------------------------------ Date: 23 Apr 2008 15:48:12 -0500 From: koehler@eisner.nospam.encompasserve.org (Bob Koehler) Subject: Re: Intel Itanium RAS Comparison with X86 Message-ID: In article <6795a6F2npagmU2@mid.individual.net>, billg999@cs.uofs.edu (Bill Gunshannon) writes: > > When I am not on active duty I do my military duty in Gettysburg. Perkins > is the only place open early enough and with service fast enough for me to > have breakfast before I have to report to work. And I am definitely a > breakfast person. Of course, a Denny's would be better. :-) Now we > can start a new thread on where to eat when yu are in the middle of nowhere. > I don't recall whether it's at the end of Ivanson or Grand, but its on the corner of First Street, on your left as you face the tracks. And they close at about 6:00, so no late dinners for you flatlanders. Identifying the town is today's challenge. Perkins and Denny's can't touch the quality of the food. ------------------------------ Date: Wed, 23 Apr 2008 21:18:52 +0100 From: "John Wallace" Subject: Re: Intel Itanium RAS Comparison with X86 Message-ID: <4qmdnepmp80sBJLVnZ2dnUVZ8uidnZ2d@plusnet> "Bob Koehler" wrote in message news:v9kmmM2pMJof@eisner.encompasserve.org... > In article <480f4afe$0$31175$c3e8da3@news.astraweb.com>, JF Mezei writes: > > > Not asking stuff specific to JSTARs: Are there any concerns about hard > > disk drives being used in aircraft, especially military ones that may be > > called to make "interesting "manoeuvers that create a couple of Gs or go > > through turbulence etc ? > > I doubt JSTARS or other large military aircraft go though any > maneuvers that your laptop can't survive, but I'm not so sure > about fighters. A couple of Gs, whether from turbulence or other, > should not be a problem for a laptop drive. I know I've done worse > to my laptop. > > I do know that we've looked at using laptop drives for space flight. > Some company buys lots of laptop drives and qualifies them to see > which will make it. I don't know of anyone who's actually done it. > Better not tell that to Raytheon, who were (are?) responsible for the flight-ready militarised Alphastations and GS320s which were (are?) used in the JSTARS project (see e.g. http://www.airforce-technology.com/projects/jstars/). Neither Raytheon's suppliers nor their customers would be impressed if their expensive on-board kit could trivially be replaced by off the shelf stuff from DECdirect or whatever. Apart from the fact that your average datacentre doesn't move very much (earthquakes excepted), and the power supply quality on-aircraft vs in-datacentre, there's also the small matter of the temperature variations on an aircraft (with not much aircon) vs the typical datacentre environment. But that's perilously close to RAS, and that would be On Topic, so I'm outta here (for now). ------------------------------ Date: 23 Apr 2008 22:20:01 GMT From: billg999@cs.uofs.edu (Bill Gunshannon) Subject: Re: Intel Itanium RAS Comparison with X86 Message-ID: <679r0hF2nr54pU1@mid.individual.net> In article , koehler@eisner.nospam.encompasserve.org (Bob Koehler) writes: > In article <6795a6F2npagmU2@mid.individual.net>, billg999@cs.uofs.edu (Bill Gunshannon) writes: >> >> When I am not on active duty I do my military duty in Gettysburg. Perkins >> is the only place open early enough and with service fast enough for me to >> have breakfast before I have to report to work. And I am definitely a >> breakfast person. Of course, a Denny's would be better. :-) Now we >> can start a new thread on where to eat when yu are in the middle of nowhere. >> > > I don't recall whether it's at the end of Ivanson or Grand, but its > on the corner of First Street, on your left as you face the tracks. > And they close at about 6:00, so no late dinners for you flatlanders. > > Identifying the town is today's challenge. The location sounds like Lovejoy's in Laramie, WY. > > Perkins and Denny's can't touch the quality of the food. They are fine for bacon and eggs. 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: Wed, 23 Apr 2008 21:32:33 +0000 (UTC) From: helbig@astro.multiCLOTHESvax.de (Phillip Helbig---remove CLOTHES to reply) Subject: Re: MCR clusterwide SHOW TIME Message-ID: In article <20080423094826.GB85906@mech-aslap33.men.bris.ac.uk>, Anton Shterenlikht writes: > Why does > > $ mcr sys$system:sysman do show time > %SYSMAN-I-OUTPUT, command execution on node OKAPI > 23-APR-2008 10:38:14 > $ > > brings me to DCL prompt again, but > > $ mcr sys$system:sysman set env/cluster > %SYSMAN-I-ENV, current command environment: > Clusterwide on local cluster > Username SYSTEM will be used on nonlocal nodes > > SYSMAN> > > doesn't exit SYSMAN? Because it makes no sense to exit immediately after setting the environment? > How can I use MCR to SHOW TIME on all cluster nodes? SYSMAN> CONFIGURATION SHOW TIME ------------------------------ End of INFO-VAX 2008.228 ************************