1.8 Monitoring Ambient Temperature of Servers

Maintaining environmental temperature conditions within design specification for Oracle Exadata Rack helps achieve maximum efficiency and targeted component service lifetimes. The impact of validating the ambient temperature range is minimal. The impact of corrective actions will vary depending on the environmental conditions.

The ambient temperature range for operating Oracle Exadata Rack is 5 to 32 degrees Celsius (41 to 89.6 degrees Fahrenheit). However, for maximum efficiency and component longevity, the optimal temperature range is 21 to 23 degrees Celsius (70 to 74 degrees Fahrenheit). For details, see Temperature and Humidity Requirements.

Use the following command as the root user on the first database server in the cluster to verify the temperature on all servers in the cluster:

dcli -g /opt/oracle.SupportTools/onecommand/all_group -l root 'ipmitool sunoem cli "show /SYS/T_AMB" | grep value'

The following is an example of the output from the command:

dm01db01: value = 21.440 degree C
dm01db02: value = 21.440 degree C
dm01db03: value = 22.190 degree C
...
dm01db08: value = 21.940 degree C
dm01cel01: value = 22.000 degree C
dm01cel02: value = 22.000 degree C
dm01cel03: value = 23.000 degree C
...
dm01cel14: value = 22.080 degree C

If the output is outside the ambient temperature range, then investigate and correct the problem. The following items should be checked:

• Sufficient air flow into the rack

• Room temperature is within the specified range

• Rear of rack is clear of obstructions