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31 Posts
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1853
April 18th, 2015 10:00
DD660 Temperature issue
Being an EMC and particularly DataDomain fanatic I finally saved some money and bought a used DD660 for my home lab. the unit arrived and had to do a new install and all is good.
I have the unit with the cover on and sitting on a table. I live in Florida so the temperature in the house must be around 75F which is not bad at all.
So at times the unit runs smooth and quiet, and then it flips to very loud from the fans, this is while the unit is idle (meaning no streams, data, users, shares, etc) the fans will run in full.
I have compared two events, one when the fans are running low and one when running on high and there is no real difference in temperature. If you see the capture below you will see that when running in low the temperature was actually higher than when running on high which makes no sense to me. Except for the front panel which reads the temperature as 27C/81F.
I remember reading somewhere that some DD660 had a temperature reading issue and I think I got one of them. So I did a test and sprayed a compressed air can upside down on the metal plate on the back of the left control of the unit and the fans and noise immediately when down.
Has anyone seen this before? Any way to replace the temp sensor or get a new control unit? I feel like a new pet owner that just found has a sick puppy...
FANS RUNNING LOW
# system status
This command may take up to a minute to complete. Please wait...
Enclosure 1
Fans
Description Level Status
---------------- ----- ------
Mid-plane fan #0 low OK
Mid-plane fan #1 low OK
Mid-plane fan #2 low OK
Mid-plane fan #3 low OK
Mid-plane fan #4 low OK
Mid-plane fan #5 low OK
Mid-plane fan #6 low OK
Mid-plane fan #7 low OK
Mid-plane fan #8 low OK
Mid-plane fan #9 low OK
---------------- ----- ------
Temperature
Description C/F Status
-------------- ------- ------
CPU 0 Relative -52/-94 OK
Baseboard 41/106 OK
Mid-plane 33/91 OK
Front panel 23/73 OK <======
-------------- ------- ------
Power Supply
Description Status
-------------- ------
Power module 1 OK
Power module 2 OK
-------------- ------
FANS RUNNING HIGH
# system status
This command may take up to a minute to complete. Please wait...
Enclosure 1
Fans
Description Level Status
---------------- ------ ------
Mid-plane fan #0 high OK
Mid-plane fan #1 high OK
Mid-plane fan #2 medium OK
Mid-plane fan #3 high OK
Mid-plane fan #4 high OK
Mid-plane fan #5 high OK
Mid-plane fan #6 high OK
Mid-plane fan #7 high OK
Mid-plane fan #8 high OK
Mid-plane fan #9 high OK
---------------- ------ ------
Temperature
Description C/F Status
-------------- ------- ------
CPU 0 Relative -51/-92 OK
Baseboard 39/102 OK
Mid-plane 33/91 OK
Front panel 27/81 OK <======
-------------- ------- ------
Power Supply
Description Status
-------------- ------
Power module 1 OK
Power module 2 OK
-------------- ------
Thanks
Paul
bobt5
49 Posts
0
April 21st, 2015 15:00
The DD660/690 series has a known issue with the front panel temperature sensor. See KB article 181464 https://support.emc.com/kb/181464.
If your BMC version is less than ver 72, you are affected.
========== HARDWARE CONFIGURATION ==========
GENERATED: 2013-07-22 06:12:15 GMT
Hardware VPD Information
------------------------
Motherboard
Board Product : S5000PSL
Board Serial : QSSL81100610
Board Part Number : E11025-102
BMC
Device Revision : 1
Firmware Revision : 0.61 <<<<<<<<<< Less than 72
IPMI Version : 2.0
There isn't much that can be done for it from your end. The bios is not available for customer download or installation. All bios upgrades for DD660/690 systems are done at the factory. The option that support has is to initiate a chassis swap for systems under support.
You can contact me directly on this, robert.thibodeau at emc.com