How to Monitor The FAN SPEED In Exadata Rack Using 'DCLI commnd'

Asset ID:	1-71-1517534.1
Update Date:	2016-10-24
Keywords:

Solution Type Technical Instruction Sure

Solution 1517534.1 : How to Monitor The FAN SPEED In Exadata Rack Using 'DCLI commnd'

Applies to:

Exadata Database Machine X2-2 Full Rack - Version All Versions to All Versions [Release All Releases]
Oracle Enterprise Linux 4.0
All Exadata

Goal

Monitor The FAN SPEED In Exadata Rack Using 'DCLI commnd'

Solution

Prerequisite:

For 'DCLI' to work properly, authentication key should be checked first. Step are listed below.

Check for keys first :

# ls ${HOME}/.ssh

If you have a id_rsa and id_rsa.pub *or* id_dsa and id_dsa.pub, then you have SSH keys generated. If not, then you will
need to generate them using the following command :

# ssh-keygen -t rsa -b 1024 -P "" -f ~/.ssh/id_rsa
Generating public/private rsa key pair.

Now, you have to propagate these keys to each host :

# dcli -l root -g /tmp/all_group -k

You will be prompted for a password for root on each of the nodes listed in /tmp/all_group. If you have never connected, you will also be asked to confirm the SSH key fingerprint for
each host. Once this is done, then the dcli command mentioned in the "ANSWER" section should work fine.

Answer :

To record the entire rack reading into a single file make use of the dcli command :

#dcli -l root -g /root/all_group 'ipmitool sensor | egrep -i FB' > ALL_FAN-RPM.txt

Comments:

On x2-2 Cell node , There are 6 Fan Modules
This means each Fan Modules has 2 Fans in each Module [ Dual Fan of 60×28mm 10400/9500 RPM ]

On x2-2 DB node , There are 4 Fan Modules
This means each Fan Module has 4 Fans in each Module [ 40x56mm, 15300 RPM Fan ]

How to check the fan speed use ipmitool command to check the tach reading :

# ipmitool sensor | egrep -i FB
or
# ipmitool sdr |grep -i TACH

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