Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 6, 2009 at 9:08 PM, Nifty Tom Mitchell wrote: > On Mon, Apr 06, 2009 at 06:18:05PM -0500, Rahul Nabar wrote: >> On Mon, Apr 6, 2009 at 2:37 PM, John Bushnell >> wrote: > There is something important here.   The BMC is reporting a hardware > error.  This is not a Linux/RHEL/SciLinux/Fe

Re: [Beowulf] OT: Windows tex editors/processors

I am running VISTA (ugh) on one of my machines. I have been using Microsoft Works Word processor in the save txt mode. It seems to work fine with various dialects of basic, fortran, visual basic and even R. Chuck Ivie Skyvolts Inc. -- From: "Ro

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 06, 2009 at 06:18:05PM -0500, Rahul Nabar wrote: > On Mon, Apr 6, 2009 at 2:37 PM, John Bushnell > wrote: > > I never call support until after I have diagnosed a problem myself as much > > as possible.  One of the advantages of buying a batch of nodes at once is > > that you can easily

Re: [Beowulf] Rackable / SGI

On Fri, Apr 3, 2009 at 6:10 PM, Robert G. Brown wrote: >> Could SGE find a home outside of Sun? > > You mean a Linux/BSD home where somebody put a knife through the heart > of aimk so it could die die die? It's not that difficult to eliminate aimk in SGE. aimk just sets a set of variables (CFLAG

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

- "Joe Landman" wrote: > Chris Samuel wrote: > > > for i in md[0123]; do > >echo check > /sys/block/$i/md/sync_action > > done > > Are these softirq cpu hangs? Nope, these are SCSI read errors back from the drives.. I've now been asked to update the IBM driver (they don't support the

Re: [Beowulf] Scientific Linux

> I See that ScientificLinux has a huge community using it - at least in > Europe. Some big research institutes are using it (CERN for example) etc. etc. Sites analyzing LHC data must use Scientific Linux because the associated applications install themselves on a specific version (or range of ve

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 6, 2009 at 2:37 PM, John Bushnell wrote: > I never call support until after I have diagnosed a problem myself as much > as possible.  One of the advantages of buying a batch of nodes at once is > that you can easily swap components between nodes to isolate the real > problem.  You will

RE: [Beowulf] OT: Windows tex editors/processors

>Can anyone recommend a good tex editor for the Windows Vista platform? There are a lot of options out there on the > web, but many of them seem squirrely to me (too many required additional components or limited usability). While I typically use emacs for this, a few people in my office

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

Hi, Rahul Nabar wrote: > We had bought 23 Dell-SC1435-PowerEdge servers for our latest cluster > addition mid-2008. IMHO SC1435 are some kind of low-cost metal from DELL. I would not use them if I want a reliable system. Especially in HPC where one failed systems ruins your whole (maybe long ru

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

Hello, Prentice Bisbal wrote: Mark Hahn wrote: buying an extended warranty might help. buying a shrink-wrapped cluster might help too. Not really. My cluster was a "shrink-wrapped" cluster from Dell. Turns out Dell hired someone from a 3rd-party to actually turn on the cluster (for t

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

IMHO SC1435 are some kind of low-cost metal from DELL. ?I would not use ... Thanks for the comments Frank. I did not realize that the SC1435 wasn't suitable for HPC. I know it is one of the lower end systems without RemoteManagement nor hot-swappable-hardware etc. (but we don't remote manageme

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

An arrangement like this just muddies the situation even further. If I had a software problem, do I call cluster, or the 3rd-party hired to install the software? if you had a problem that could be clearly attributed to whoever sold you the package, you should call them. they sold it, and if wh

[Beowulf] Re: OT: Windows tex editors/processors

Going that route, running VMware player with a Linux pre-built Linux appliance can give you the best of both worlds. You can also do this with VirtualBox if you don't like VMware. But MikTeX & something like Vim or GNU emacs is a pretty good windows-based TeX platform. Or Scientific Workplace is p

Re: [Beowulf] OT: Windows tex editors/processors

On Mon, 6 Apr 2009, Jon Forrest wrote: Geoff Galitz wrote: Can anyone recommend a good tex editor for the Windows Vista platform? There are a lot of options out there on the web, but many of them seem squirrely to me (too many required additional components or limited usability). There's a

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 06, 2009 at 11:36:33AM -0500, Rahul Nabar wrote: > Well, Dell get's paid almost when they deliver the machines each time. Sounds like Dell wrote that part of the contract. Usually when you do a competetive bid you don't pay until the system is accepted, and that's explicitly written o

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 6, 2009 at 3:41 PM, Prentice Bisbal wrote: > > At my site, we use a locally maintained rebuild of RHEL. Whenever tech > support from any company asks if I'm using Red Hat, I say yes, since > it's a binary compatible rebuild. It's never been a problem. And I've > even sent DSET reports

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

Matt Lawrence wrote: > On Mon, 6 Apr 2009, Gerry Creager wrote: > >> Dell have told us they won't support us or accept reports of problems >> running anything but RHEL on our cluster. We therefore have one admin >> who has been brainwashed into believing RHEL is actually spelled >> "CentOS". He

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, 6 Apr 2009, Gerry Creager wrote: Dell have told us they won't support us or accept reports of problems running anything but RHEL on our cluster. We therefore have one admin who has been brainwashed into believing RHEL is actually spelled "CentOS". He calls in hardware problems and ca

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

2009/4/6 Gerry Creager : > Unless Dell explicitly tells you they won't be a party to acceptance > testing. > > We've heard that one recently. Run that by us one more time please. Lets get that clear - a manufacturer from whom you are buying of kit with public money refuses to countenance acc

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 6, 2009 at 2:53 PM, Gerry Creager wrote: > > And in the US, the Tier2 and Tier3 LHC participants are using > ScientificLinux, too.  In fact, we've a couple of researchers here who will > use no other distro.  you know, like RHEL or CentOS.  Too dangerous in their > eyes. Good to know!

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

Unless Dell explicitly tells you they won't be a party to acceptance testing. We've heard that one recently. gerry Michael Will wrote: I would expect the vendor of the shrink-wrapped cluster (DELL) to be responsible for all support, and acceptance of delivery should be dependent on meeting a

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

Jan Heichler wrote: Hallo Rahul, Montag, 6. April 2009, meintest Du: RN> On Mon, Apr 6, 2009 at 7:46 AM, Chris Samuel > wrote: > Even though we could reproduce it on 64-bit Debian > and 32-bit CentOS they wouldn't escalate the issue > until we could reproduce

Re: [Beowulf] Rackable / SGI

snip > Two of the problems with the Transputer was the lack of virtual memory > and that the the network was fixed. And the fact that the H1 was late and broken. -- Doug > > > -- > T o m M i t c h e l l > Found me a new hat, now what? > > > ___

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

Dell does have experience... and contracts... with RH for RHEL. They do not recognize CentOS officially. Rahul Nabar wrote: On Mon, Apr 6, 2009 at 7:46 AM, Chris Samuel wrote: Even though we could reproduce it on 64-bit Debian and 32-bit CentOS they wouldn't escalate the issue until we could

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

Rahul Nabar wrote: > On Mon, Apr 6, 2009 at 1:32 PM, Frank Gruellich > wrote: >> IMHO SC1435 are some kind of low-cost metal from DELL. I would not use >> them if I want a reliable system. Especially in HPC where one failed >> systems ruins your whole (maybe long running) job. > > Thanks for th

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 6, 2009 at 1:32 PM, Frank Gruellich wrote: > IMHO SC1435 are some kind of low-cost metal from DELL.  I would not use > them if I want a reliable system.  Especially in HPC where one failed > systems ruins your whole (maybe long running) job. Thanks for the comments Frank. I did not re

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 6, 2009 at 12:37 PM, Mark Hahn wrote: > what's the term of the warranty? Thanks Mark. All I have from my quote is the pretty generic "Dell Hardware Warranty Plus Onsite Service Initial Year (985-5117)" I'll have to dig deeper to find the full legal terms and conditions of the warrent

Re[2]: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

Hallo Prentice, Montag, 6. April 2009, meintest Du: PB> Mark Hahn wrote: >> buying an extended warranty might help. buying a shrink-wrapped cluster >> might help too. PB> Not really. My cluster was a "shrink-wrapped" cluster from Dell. Turns PB> out Dell hired someone from a 3rd-party to actual

Re[4]: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

Hallo Rahul, Montag, 6. April 2009, meintest Du: RN> Just making the point that CentOS (IMHO) is as good or bad a choice RN> and I wish the vendor's let me peacefully live with it! :) To each his RN> own Distro (within reasonable bounds). Well - the point is that a vendor can't debug a distro. Y

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

I put these machines into production in Aug '08. Within a month we had the first machine go bad. They hang with a amber LED and the what's the term of the warranty? logging-module clearly logs an error of the sort: "Voltage sensor (VCORE) critical error. State asserted CPU2". Machine needs a p

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

Mark Hahn wrote: > buying an extended warranty might help. buying a shrink-wrapped cluster > might help too. Not really. My cluster was a "shrink-wrapped" cluster from Dell. Turns out Dell hired someone from a 3rd-party to actually turn on the cluster (for the first time) and install all the soft

Re: [Beowulf] OT: Windows tex editors/processors

In my early LaTeX days I used MikTeX, it does work well and is worth it. Though admittedly these days I prefer to use the Windows version of gVim if I do any work in Windows. ___ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

I would expect the vendor of the shrink-wrapped cluster (DELL) to be responsible for all support, and acceptance of delivery should be dependent on meeting all requirements documented in the purchase process. How they then resolve it should not matter. THat being said, it seems quite unusual t

Re: [Beowulf] OT: Windows tex editors/processors

On Mon, 6 Apr 2009 at 10:45am, Jon Forrest wrote On Mon, Apr 6, 2009 at 4:13 AM, Geoff Galitz wrote: Can anyone recommend a good tex editor for the Windows Vista platform? There are a lot of options out there on the web, but many of them seem squirrely to me (too many required additional com

Re: Re[2]: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 6, 2009 at 11:58 AM, Jan Heichler wrote: > I See that ScientificLinux has a huge community using it - at least in > Europe. Some big research institutes are using it (CERN for example) - some > projects set it as the default distro (D-Grid - a german GRID project). > > So i don't see y

Re: [Beowulf] OT: Windows tex editors/processors

On Mon, Apr 6, 2009 at 4:13 AM, Geoff Galitz wrote: Can anyone recommend a good tex editor for the Windows Vista platform? There are a lot of options out there on the web, but many of them seem squirrely to me (too many required additional components or limited usability). Someone pointed ou

Re: [Beowulf] FPU performance of Intel CPUs

On Apr 6, 2009, at 4:13 PM, John Hearns wrote: 2009/4/5 Mark Hahn : well, in the HPC world, correctness is normally paramount, so no form of overclocking is considered much... Mark, welcome to Nehalem! http://download.intel.com/design/processor/applnots/320354.pdf They overclock themselves

Re: [Beowulf] FPU performance of Intel CPUs

In message from John Hearns (Mon, 6 Apr 2009 17:45:37 +0100): 2009/4/6 Jones de Andrade : That's a thing that rises a question for me... Will beowulfers start to accept "manufacturers auto-overclock" as a feature... ou will choose motherboards that allows you to disable this?  ;) Concerning

Re: [Beowulf] OT: Windows tex editors/processors

james bardin wrote: > On Mon, Apr 6, 2009 at 4:13 AM, Geoff Galitz wrote: > >> >> >> Can anyone recommend a good tex editor for the Windows Vista platform? >> There are a lot of options out there on the web, but many of them seem >> squirrely to me (too many required additional components or l

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

Rahul Nabar wrote: that the vendors engage in so much arm-twisting. Is there any scientific evidence that the core kernels of Debian or Fedora or CenOS (that *is* essentially RHEL isn't it?) are any less reliable then RHEL? What is / are the distros of choice on the Beowulf community? Fedora,

[Beowulf] Re: Beowulf Digest, Vol 62, Issue 27

Date: Sun, 5 Apr 2009 22:10:18 +0100 From: Tim Cutts Subject: Re: [Beowulf] Rackable / SGI To: "Andrew M.A. Cater" Cc: beowulf@beowulf.org On 5 Apr 2009, at 6:32 pm, Andrew M.A. Cater wrote: > Tim Cutts and the Sanger Inst. aren't enough to convince senior > management that Debian is workable,

Re: [Beowulf] Breaking: IBM pulls bid for Sun Microsoft+Yahoo redux

Sun could be just posturing. Sun has good engineers and good technology. Still at 9.40 per share, Sun is overpriced. If the deal doesn't go through, I'd expect Sun's stock price to fall. On 04 6, 09, at 3:57 PM, Greg Lindahl wrote: On Mon, Apr 06, 2009 at 08:50:25AM +0100, Huw Lynes wrote:

Re: [Beowulf] OT: Windows tex editors/processors

On Mon, Apr 6, 2009 at 4:13 AM, Geoff Galitz wrote: > > > > > Can anyone recommend a good tex editor for the Windows Vista platform? >  There are a lot of options out there on the web, but many of them seem > squirrely to me (too many required additional components or limited > usability). > The

Re[2]: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

Hallo Rahul, Montag, 6. April 2009, meintest Du: RN> On Mon, Apr 6, 2009 at 7:46 AM, Chris Samuel wrote: >> Even though we could reproduce it on 64-bit Debian >> and 32-bit CentOS they wouldn't escalate the issue >> until we could reproduce it on RHEL5 - which we did >> today. RN> Thanks for s

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 6, 2009 at 11:26 AM, John Hearns wrote: > Yeah. SGI is better. > > Blade goes pop, or we just even see some errors in a salinfo log. > New blade turns up via DHL from European distribution centre, or SGI > field engineer asks for it to > be held for his collection. > SGI engineer on ou

Re: [Beowulf] ssh authenticity issue

I wanted to carry out a test of parallel installation of a molecular dynamics program (amber) operating directly on the parallel computer (the ssh daemon was stopped) eh? I don't see that it _ever_ makes sense to stop sshd. The command (as user) make test < /dev/null asked to confirm the RS

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 6, 2009 at 7:46 AM, Chris Samuel wrote: > Even though we could reproduce it on 64-bit Debian > and 32-bit CentOS they wouldn't escalate the issue > until we could reproduce it on RHEL5 - which we did > today. > Thanks for sharing the anecdote Chris. I wonder if there is any clause in

Re: [Beowulf] FPU performance of Intel CPUs

2009/4/6 Jones de Andrade : > That's a thing that rises a question for me... > > Will beowulfers start to accept "manufacturers auto-overclock" as a > feature... ou will choose motherboards that allows you to disable this?  ;) > > Concerning Nehalems, of course. > I read up about this. You can alwa

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 6, 2009 at 3:08 AM, Greg Lindahl wrote: > > >From your symptoms, the power supply seems to be the next thing to > suspect. From your switch of distros, it's probably not a particular > bad Linux kernel. You have a few completely new machines that don't > hang; move the known good powe

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

2009/4/6 Rahul Nabar : > > Just wanting to hear more about how I can best resolve this issue. For > our future purchases would changing vendors help? Is there any trend > behind the quality of services from different vendors? I have only > been exposed to Dell and its frustrating customer-service s

Re: [Beowulf] OT: Windows tex editors/processors

Geoff Galitz wrote: Can anyone recommend a good tex editor for the Windows Vista platform? There are a lot of options out there on the web, but many of them seem squirrely to me (too many required additional components or limited usability). I happily use Windows as my desktop OS, even th

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 6, 2009 at 3:20 AM, John Hearns wrote: > 2009/4/6 Rahul Nabar : >> We had bought 23 Dell-SC1435-PowerEdge servers for our latest cluster >> addition mid-2008. These batch of machines has proved to be a total >> disaster from Day one. I was looking for suggestions how I should >> tackle

Re: [Beowulf] FPU performance of Intel CPUs

2009/4/5 Mark Hahn : > > well, in the HPC world, correctness is normally paramount, > so no form of overclocking is considered much... > Mark, welcome to Nehalem! http://download.intel.com/design/processor/applnots/320354.pdf They overclock themselves... ___

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

Chris Samuel wrote: - "Rahul Nabar" wrote: I contact Dell. Responses range from the clueless to absurd. First, they convinced us it was Fedora. So I shifted to CentOS. They still claim CentOS is "unvalidated" but I refuse to spend a fortune to move over to RHEL like they want me to. Not

Re: [Beowulf] Odd SuperMicro power off issues

Back in December... - "Chris Samuel" wrote: > Hi folks, > > We've been tearing our hair out over this for a little > while and so I'm wondering if anyone else has seen anything > like this before, or has any thoughts about what could be > happening ? > > Very occasionally we find one of o

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

- "Rahul Nabar" wrote: > I contact Dell. Responses range from the clueless to absurd. First, > they convinced us it was Fedora. So I shifted to CentOS. They still > claim CentOS is "unvalidated" but I refuse to spend a fortune to move > over to RHEL like they want me to. Not that this helps

Re: [Beowulf] Breaking: IBM pulls bid for Sun Microsoft+Yahoo redux

delurk [1]... - "Joe Landman" wrote: > If so, Sun's board says ... whoops? I suspect JS's group will be annoyed whilst McNealy's will be happy, according to this report of the factionalism on the board.. http://online.wsj.com/article/SB123896664697090681.html#mod=rss_whats_news_us Of cour

Re: [Beowulf] Breaking: IBM pulls bid for Sun Microsoft+Yahoo redux

Greg Lindahl wrote: On Mon, Apr 06, 2009 at 08:50:25AM +0100, Huw Lynes wrote: If true, I choose to interpret this as a very good thing. Assuming Sun doesn't declare chapter 11 next week. Sun has several billion dollars in the bank. But you did notice all the damage that Yahoo suffered from

Re: [Beowulf] Breaking: IBM pulls bid for Sun Microsoft+Yahoo redux

Huw Lynes wrote: On Sun, 2009-04-05 at 19:41 -0400, Joe Landman wrote: Not sure if you've seen this yet, but Sun appears to have rejected the IBM bid as being insufficient. The claim is that they wanted out of the exclusivity bit, likely to try to get a better deal from someone else. So it se

Re: [Beowulf] FPU performance of Intel CPUs

On Sun, Apr 5, 2009 at 11:28 PM, Mark Hahn wrote: > > I'll get an answer: is there any remarkable difference in FPU performance between Extreme and non-Extreme Intel CPUs, e.g. QX9650 and Q9650? >>> >>> of course not - the chips are the same inside, so deliver >>> exactly the perf

Re: [Beowulf] Breaking: IBM pulls bid for Sun Microsoft+Yahoo redux

On Monday 06 April 2009 09:57:48 Greg Lindahl wrote: > On Mon, Apr 06, 2009 at 08:50:25AM +0100, Huw Lynes wrote: > > If true, I choose to interpret this as a very good thing. Assuming Sun > > doesn't declare chapter 11 next week. > > Sun has several billion dollars in the bank. But you did notice

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

2009/4/6 Rahul Nabar : > We had bought 23 Dell-SC1435-PowerEdge servers for our latest cluster > addition mid-2008. These batch of machines has proved to be a total > disaster from Day one. I was looking for suggestions how I should > tackle this. Sending an email to an international email list co

[Beowulf] OT: Windows tex editors/processors

Can anyone recommend a good tex editor for the Windows Vista platform? There are a lot of options out there on the web, but many of them seem squirrely to me (too many required additional components or limited usability). I have good ones for Linux and Mac, but we do some of our work in

Re: [Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

On Mon, Apr 06, 2009 at 02:54:23AM -0500, Rahul Nabar wrote: > Eventually they send me swaps for the Motherboard and CPU. No > go. Still hangs at random. Unfortunately there is no magic bullet. I have seen bad batches of power supplies cause a problem like this. In another case, an integrator-sup

Re: [Beowulf] Breaking: IBM pulls bid for Sun Microsoft+Yahoo redux

On Mon, Apr 06, 2009 at 08:50:25AM +0100, Huw Lynes wrote: > If true, I choose to interpret this as a very good thing. Assuming Sun > doesn't declare chapter 11 next week. Sun has several billion dollars in the bank. But you did notice all the damage that Yahoo suffered from the failed Microsoft

[Beowulf] Repeated Dell SC1435 crash / hang. How to get the vendor to resolve the issue when 20% of the servers fail in first year?

We had bought 23 Dell-SC1435-PowerEdge servers for our latest cluster addition mid-2008. These batch of machines has proved to be a total disaster from Day one. I was looking for suggestions how I should tackle this. We are a fairly small university setup and I don't have much experience dealing wi

Re: [Beowulf] Breaking: IBM pulls bid for Sun Microsoft+Yahoo redux

On Sun, 2009-04-05 at 19:41 -0400, Joe Landman wrote: > Not sure if you've seen this yet, but Sun appears to have rejected the > IBM bid as being insufficient. The claim is that they wanted out of the > exclusivity bit, likely to try to get a better deal from someone else. > So it seems IBM yan