The system will have varying levels of acoustic output based on utilization. If the system is at idle it will be very quiet, but if the system is being highly utilized it will put out much more heat and cause the fans to run at much higher RPM.
If this is a parity array then a rebuild will cause the controller to perform many calculations above normal operations. It will also cause all of the drives in the array to put off more heat while the controller reads from each of them.
If the fans continue at high RPM after the rebuild is complete then I would suggest reviewing the thermals throughout the system.
I assumed so. Let me wait for few more days as I'm getting the replacement disk from DELL. Once I have replaced and once the RAID is built, will see the fan check once again.
Currently all 6 - 7 fans are running at 9100 RPM average and will it be a problem if this continues to run so? maybe for a week or two until I replace and rebuild the array??
It was due to the degraded RAID array I assume. I have received the replacement disk today and have added it to the server which started its rebuild. Once after the reboot, rebuilt was all okay and the RAID returned to its normal state while fan RPMs have dramatically gone down to 6k from 9k.
Seems like that the server was detecting RAID failure as some sort of an external failure or something else. However, things went back to being normal now.
Daniel My
10 Elder
•
6.2K Posts
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April 3rd, 2016 16:00
Hello
The system will have varying levels of acoustic output based on utilization. If the system is at idle it will be very quiet, but if the system is being highly utilized it will put out much more heat and cause the fans to run at much higher RPM.
If this is a parity array then a rebuild will cause the controller to perform many calculations above normal operations. It will also cause all of the drives in the array to put off more heat while the controller reads from each of them.
If the fans continue at high RPM after the rebuild is complete then I would suggest reviewing the thermals throughout the system.
Thanks
azkerm
16 Posts
0
April 4th, 2016 01:00
Hi Daniel,
I assumed so. Let me wait for few more days as I'm getting the replacement disk from DELL. Once I have replaced and once the RAID is built, will see the fan check once again.
Currently all 6 - 7 fans are running at 9100 RPM average and will it be a problem if this continues to run so? maybe for a week or two until I replace and rebuild the array??
azkerm
16 Posts
0
April 10th, 2016 12:00
Hi Daniel,
It was due to the degraded RAID array I assume. I have received the replacement disk today and have added it to the server which started its rebuild. Once after the reboot, rebuilt was all okay and the RAID returned to its normal state while fan RPMs have dramatically gone down to 6k from 9k.
Seems like that the server was detecting RAID failure as some sort of an external failure or something else. However, things went back to being normal now.
Thank for the help!