HP ProLiant DL360 G6 reporting missing fan

Are you receiving an error, or are you just concerned that there's no fan present in slot #2?

The HP ProLiant DL360 G6 server uses three or four dual-fan block modules, depending on if the system is equipped with dual CPUs or a single CPU. (The extra fan module comes in the kit with the single processor option kit). Do you have a full fan block in the slot or a blank? On single-CPU models, there's a plastic blank in fan location #2 (empty in the photo below).

• What are the specs of the systems you've purchased?
• A dual-CPU DL360 G6 will not boot with a missing fan module.
• How are you receiving alerts about the fan failures?
• If these are dual-CPU units, make sure the fan connector for slot #2 on the motherboard is fully engaged.

Since these are Linux and you have the HP agents installed, quickly post the output of the following commands:

hplog -v # This will show the HP IML log and the alerts tied to the fan failures.

hplog -t # This will show the temperature zones.

hplog -f # This will show the fan ID and status.

I'd like to see if these are consistent with what you're seeing from hpasmcli.

Post the server firmware and CPU configuration if you can. You can get a concise summary of both with:

dmidecode -t 1 | egrep '(Manufacturer|Product|Serial)'; dmidecode -t processor| egrep '(Socket|Version)'

e.g.

[root@LAS ~]# dmidecode -t 1 | egrep '(Manufacturer|Product|Serial)'; dmidecode -t 0 | egrep '(Version|Release)'; dmidecode  -t processor| egrep '(Socket|Version)'
        Manufacturer: HP
        Product Name: ProLiant DL380 G6
        Serial Number: 2UXxxxx6KT      
        Version: P62
        Release Date: 05/05/2011
        Socket Designation: Proc 1
        Version: Intel(R) Xeon(R) CPU X5570 @ 2.93GHz            
        Upgrade: Socket LGA1366
        Socket Designation: Proc 2
        Version: Intel(R) Xeon(R) CPU X5570 @ 2.93GHz            
        Upgrade: Socket LGA1366

All else, if your firmware version (Release Date) is older than the output I posted above, update the firmware for the server.

According to the HP DL360 G6 User Guide, the fan 2 is only necessary when the second processor is present:

The User Guide of the HP DL380 Gen8 goes into a little more detail in the extra-fan-issue and suggest that installing the additional fan without a second processor is not going to work:

For a single-processor configuration, four fans and two blanks are required in specific fan bays for redundancy. A fan failure or missing fan causes a loss of redundancy. A second fan failure or missing fan causes an orderly shutdown of the server. Installing more than the required number of fans in a single-processor configuration is not a supported configuration. For a dual-processor configuration, six fans are required for redundancy. A fan failure or missing fan causes a loss of redundancy. A second fan failure or missing fan causes an orderly shutdown of the server.