Multimedia Server losing power during high LAN traffic

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denywinarto

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Aug 1, 2012
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We have a multimedia server with the following specs :

Azrock Z87 (10 SATA slots) Motherboard
I3 processor
8GB dual channel RAM
Seasonic 660 watt Gold X-Series
9 HDD's 2x 6TB, 4x 4TB the rest is 3TB
Cooler (Forgot the brand, but it was good enough to keep the temperature down)

This server is shared with a number of client with samba..
Problem is, when there's a high traffic.. e.g alot of clients copying from server, the server suddenly shutdown..
The power supply was replaced just 2 weeks ago (because it's still covered in 5y warranty)
But the problem occurs again this week..
We're quite concerned because multiple TB's of HDDs + power loss is not a good thing..

We're still trying to identify the cause, but our primary suspect is PSU, because it's related to power loss
But the PSU is almost in new condition (2 weeks)
The temperature was pretty normal.. 38-41 after power loss
Lack of PSU Watt doesn't make sense either because we dont use VGA, and max watt per HDD is 25w isn't it?
So 25 x9 = 225 watt
And after power loss it's booting just fine, if it's too much it wouldn't boot right?
If it's the system i highly doubt it because usually it would restart.. not shutting down..
The HDD is not corrupted, we transfer data everyday.

So anyone have any idea what might cause this sudden power loss during high LAN traffic?

 
Solution
Karsten75
Your VRMs or other on-motherboard controllers could be overheating, depending on airflow. Install Open Hardware Monitor and have it log temperatures and voltages. Then check the logs to see if something spike *before* shutdown. Reporting on temperature or any other observation "after Restart* is pretty pointless.

On a different note, that's an insane configuration and if you have no backup/RAID, you're walking naked in the street. That's 37TB of data....
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Karsten75

Karsten75

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Oct 15, 2009
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Your VRMs or other on-motherboard controllers could be overheating, depending on airflow. Install Open Hardware Monitor and have it log temperatures and voltages. Then check the logs to see if something spike *before* shutdown. Reporting on temperature or any other observation "after Restart* is pretty pointless.

On a different note, that's an insane configuration and if you have no backup/RAID, you're walking naked in the street. That's 37TB of data....
 
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Solution
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denywinarto

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Aug 1, 2012
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Will give this a try, thanks for the tips.
Yeah, forgot to say we're using UPS with auto-shutdown as well..
So at least it's safe from sudden electricity loss... (until this problem happens)
We found it's too costly to backup the entire data,
usually when a drive fails it shows some symptoms such as locking or speed drop and we immediately replace it..




You used same motherboard?
What were the symptoms ?
We transfer files to the HDDs everyday and the speed was normal i think.. If it's ethernet wouldn't there a problem in data transfer?
 
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GhislainG

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Jul 16, 2008
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Not the same motherboard, but the system would shut down. Other systems were not affected and the transfer speed was fine. If your Azrock Z87 motherboard has an Intel LAN controller (some do, some don't), then I would look elsewhere. I doubt 2 PSUs would cause that issue; but bulged capacitors or another defective component on the motherboard could.
 
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