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  Re: Severe hardware failure, loss of sleep and more 
 
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Mike L Jul 17, 2003, 03:33pm EDT Reply - Quote - Report Abuse
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Wow, Murphy's law indeed... Seems like verything is up and running very well. A few questions, however-

What is RAID10?
What is Rh9?
What are NMI errors?
And out of curiousity, what are the specs on the servers? =)



Who cares if the glass is half empty OR half full, if you're thirsty it'll all be gone anyways...
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Caveman017 Jul 17, 2003, 03:41pm EDT Reply - Quote - Report Abuse
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>> Re: Re: Severe hardware failure, loss of sleep and more

Sincerely,
Brandon G.

~~I'd like to think about myself as a very advanced computer technician but it wont happen till i get a job:)
Caveman017 Jul 17, 2003, 03:45pm EDT Reply - Quote - Report Abuse
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>> Re: Re: Severe hardware failure, loss of sleep and more
Processors: 4
Model: Intel(R) Xeon(TM) CPU 2.80GHz
Chip MHz 2799.72
Cache Size 512 KB
System Bogomips 22373.97
PCI Devices Intel Corp. 82801CA IDE U100
Intel Corp. 82870P2 P64H2 I/OxAPIC (#2)
Intel Corp. 82870P2 P64H2 I/OxAPIC
Intel Corp. 82545EM Gigabit Ethernet Controller
Adaptec AAC-RAID
Intel Corp. 82557/8/9 [Ethernet Pro 100]
ATI Technologies Inc Rage XL

IDE Devices hda: FX54++W

SCSI Devices ADAPTEC Adaptec RAID10 ( Direct-Access )


67.28 GB RAID10 15,000 RPM
2GB RAM

Sincerely,
Brandon G.

~~I'd like to think about myself as a very advanced computer technician but it wont happen till i get a job:)
Sander Sassen Jul 17, 2003, 03:56pm EDT Reply - Quote - Report Abuse
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>> Re: Re: Severe hardware failure, loss of sleep and more
Mike,

In a nutshell:

RAID0:
You can increase the performance of a storage subsystem, e.g. harddisk by using two that both write/read part of the data. This is called a RAID0, striping configuration. Basically the data is cut into even and uneven bits and each drive get either the even or uneven bits, naturally maximum data throughput doubles, as the data is formed by combining the data from both drives.

RAID1:
This configuration is meant for security, a second drive is added that exactly mirrors the first one. If either drive stops working the other one will still have all the data up to the moment the other drive stopped.

RAID10
This is a combination of the above, so a striped mirror, a total of four drives are needed which are put in RAID1 and then the second RAID1 array mirrors the first. This is what we use on the Hardware Analysis webserver. This is the best performance and security with zero downtime, as up to two drives can go defective and we'll still be able to access the data.

RH9:
RedHat 9, the latest version of the RedHat Linux operating system, you didn't think we'd run this site on Micro$oft software do you? We get better performance and uptime, as well as much more customizing done by using this open source OS.

NMI:
NonMaskableInterrupt, these are errors or warnings that tell you something is amiss at the hardware level of a PC or server.

Config of our current webserver is as follows:

Dual 2.8GHz Intel Xeons with HyperThreading
2 GB DDR266 memory, 4x512MB Crucial Registered
Tyan Tiger I7500 motherboard, Intel e7500 chipset
4 x Seagate Cheetah 15K3, 37GB, 15.000-rpm Ultra 320 HDs
HDs are in a RAID10 array, totaling 68GB in capacity
Adaptec 2200S dual channel Ultra 320 SCSI RAID controller
Chenbro 2U rack case with Zippy 460-watts powersupply
RedHat 9 Linux with Apache, PhP and MySQL

Kind regards,

Sander Sassen
Editor in Chief - Hardware Analysis
ssassen@hardwareanalysis.com
Caveman017 Jul 17, 2003, 04:00pm EDT Reply - Quote - Report Abuse
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>> Re: Re: Severe hardware failure, loss of sleep and more
sry i say 4 processors. it s 2x2.8 xeons with HT

Sincerely,
Brandon G.

~~I'd like to think about myself as a very advanced computer technician but it wont happen till i get a job:)
Mike L Jul 17, 2003, 11:48pm EDT Reply - Quote - Report Abuse
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>> Re: Re: Severe hardware failure, loss of sleep and more
Hey Brendon, how did you know that?


Who cares if the glass is half empty OR half full, if you're thirsty it'll all be gone anyways...
Mike L Jul 17, 2003, 11:48pm EDT Reply - Quote - Report Abuse
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>> Re: Re: Severe hardware failure, loss of sleep and more
Also, thanks for the info =)


Who cares if the glass is half empty OR half full, if you're thirsty it'll all be gone anyways...
Wildwood Jul 18, 2003, 12:43am EDT Reply - Quote - Report Abuse
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>> Re: Re: Severe hardware failure, loss of sleep and more
Maybe this problem should be posted in the forum as a prime example of what a PSU gone bad can do.

;)


Caveman017 Jul 18, 2003, 12:50am EDT Reply - Quote - Report Abuse
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>> Re: Re: Severe hardware failure, loss of sleep and more
sander and ICQ. gave me a HWA link with the sever stats. i wont post it w/o his okay tho.

Sincerely,
Brandon G.

~~I'd like to think about myself as a very advanced computer technician but it wont happen till i get a job:)
NickName Jul 18, 2003, 03:16pm EDT Reply - Quote - Report Abuse
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>> Re: Re: Severe hardware failure, loss of sleep and more
Holy crap! I'd thought your server untouchable. Out of curiosity...what was the total up time of the server before it went kaboom!?

Henry Martin Jul 18, 2003, 03:23pm EDT Reply - Quote - Report Abuse
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>> Re: Re: Severe hardware failure, loss of sleep and more
Are you KIDDING ME?? Old HWA members COMING BACK FROM THE DEAD?? IN ONE DAY?? First Ray Stephens, and then the LEGEND, Anonymous Poster!! May I have your autograph??:)

-----------------------------------------------------------
Space for rent
Sander Sassen Jul 18, 2003, 03:45pm EDT Reply - Quote - Report Abuse
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>> Re: Re: Severe hardware failure, loss of sleep and more
We were up since November of last year, but started rebooting about a month ago as it kept locking up. As you'll understand from reading the column there wasn't much we could do from remote, other than rebooting it.

Kind regards,

Sander Sassen
Editor in Chief - Hardware Analysis
ssassen@hardwareanalysis.com
Darren Krape Jul 18, 2003, 08:19pm EDT Reply - Quote - Report Abuse
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>> Re: Re: Severe hardware failure, loss of sleep and more
Yeaoch, I guess I can consider myself lucky that the only time I've lost a power supply, that was the worst of my problems. No doubt the next time one goes on me it will be one of those "mission critical" times when I need the system running the most. Murphy's law being what it is.

Darren Krape

Chief Graphics Designer
dkrape@hardwareanalysis.com
http://www.darrenkrape.com
#hardwareanalysis on newnet.net
Tim Jul 24, 2003, 07:46am EDT Reply - Quote - Report Abuse
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>> OMG that has GOT to suck... :(
And what company made this PSU again? Hmm lucky thing the RAID was still safe! Sander, I can honestly tell you I know what its like to deal with issues like this :( I am glad that you could get the site back up and running though, and I hope the companies will fork the replacement parts!

Tim

AMD Athlon 3800+ X2
DFI SLI-DR NF4
Enermax NoiseTaker 600W
1GB Corsair 2225 1T DDR400
1x EVGA nVidia GeForce 6600GT (No SLI, yet.)
1x 80GB WD Caviar 8mb/7200rpm
Windows 2003 Standard Server
Bawitdaba Aug 13, 2003, 02:56pm EDT Reply - Quote - Report Abuse
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>> Re: Re: Severe hardware failure, loss of sleep and more
wow this sucks :( was this due to the PSU or external stuff? maybe a surge protecter on the rack isnt a bad idea. As far as the setup it sounds like an amazing design. I assume you have one rather small IDE drive in it where RH sits and the rest of the data ect is on the raid array which can be easily moved to a new server if a problem happens. Am i right in assuming this? Also, if this is true did you ever consider making a ghost image of that HD incase of a crash? This way you can restore your OS hd and re-configure it for the new server (if thats possible, im not a total linux guru).

-Bawitdaba


"Losers complain about doing their best, winners go home and f00k the prom queen"

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