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John R Pierce (p...@hogranch.com)

Profile | Posts (223)

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Display Name:John R Pierce
Partial Email Address:p...@hogranch.com
Posts:
223 total
142 in CentOS
38 in PostgreSQL - Bugs
43 in PostgreSQL - JDBC

5 Most Recent

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1) John R Pierce Re: [CentOS] how can I stress a server?
| +1 vote
ECC memory would have caught any memory errors, (including memory timing), and give a diagnostic...
CentOS
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Rudi Ahlers wrote:
> John, just cause the machines we use to serve web content to our
> clients doesn't use the grade of equipment you prefer to use, and can
> afford, doesn't mean equipment that other people use is inferior, or
> worthless.
>
>   

ECC memory would have caught any memory errors, (including memory
timing), and give a diagnostic and we wouldn't be having this
conversation, this system would be in production, and you'd be working
on the next customers job.


oh yeah, those 'server' motherboards generally use registered/buffered
memory, which can handle higher memory fanouts and support a full load
of memory banks robustly.



I meant to suggest the other night, go into the Intel BIOS, find the
memory settings area, and set it to custom timings, and add a clock to
each of the timings, like if its 4-4-4-12, try 5-5-5-15 (or whatever the
next increment is).     running 8GB on a desktop board, I'm guessing you 
have all slots full, this increseas the capacitive load on the address
and data bus, and makes marginal timing more marginal.


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2) John R Pierce Re: [CentOS] how can I stress a server?
| +1 vote
4 instances of mprime (www.mersenne.org), running the torture test, each set to affinity on a...
CentOS
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Rudi Ahlers wrote:
> Hi all,
>
> I have a server, with an Intel DG35EC motherboard, Q9300 CPU, 8GB
> Kingston DDRII RAM which can't take a lot of load. I have 4 XEN VPS's
> on there, which doesn't consume more than 4GBM RAM at this stage. Yet,
> the machine sky rockets at some times. I've moved the XEN VPS's to
> another server, with 4GM RAM, and it doesn't cause the same problems.
>
> So, apart from memtest86 how else can I stress test the server to find
> out what the problem is?
>   


4 instances of mprime (www.mersenne.org), running the torture test, each
set to affinity on a different CPU.

and, next time get a real server board with ECC.


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3) John R Pierce Re: [CentOS] Re: how to debug hardware lockups?
| +1 vote
in the original post he said... and upon further questioning... which is purely a desktop board...
CentOS
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Scott Silva wrote:
> Does it have any out of bandwidth management like Dell's drac or HP's ILO?

in the original post he said...

> The CPU is an Intel Q9300 Core 2 Quad, with 8 GB RAM, on an Intel Motherboard


and upon further questioning...

> The motherboard is a Intel DG35EC -
> http://www.intel.com/products/desktop/motherboards/DG35EC/DG35EC-overview.htm



which is purely a desktop board (onboard Intel graphics, etc).


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4) John R Pierce Re: [CentOS] Gigabit Lan doesn't work
| +1 vote
this intel driver is for 82567 and others.....
CentOS
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Rilawich Ango wrote:
> Hi all,
>
> I have installed Centos completely. However, the LAN doesn't work.
> Below is the message after I issue. How can I make it work?
>
> 00:19.0 Ethernet controller: Intel Corporation 82567V-2 Gigabit
> Network Connection
>   


this intel driver is for 82567 and others..
http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProductID=3003&DwnldID=15817&strOSs=39&OSFullName=Linux*&lang=eng

I'd read the readme and release notes.    chances are, you'll need to 
intsall kernel-devel in order to build this, but not the full kernel
sources as youre just building a driver module.


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5) John R Pierce Re: [CentOS] how to debug hardware lockups?
| +1 vote
midrange business desktop board. I use a DG33TL as my desktop, same thing.
CentOS
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Rudi Ahlers wrote:
> No, the motherboard doesn't support ECC RAM. The motherboard is a
> Intel DG35EC - http://www.intel.com/products/desktop/motherboards/DG35EC/DG35EC-overview.htm
>   

midrange business desktop board.     I use a DG33TL as my desktop, same 
thing.


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