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Most recent machine room temperature readings were:
-Server front:
78.1 F / 25.6 C
at
Saturday May 10 18:30 EDT.
-Cold air vent:
55.3 F / 12.9 C
at
Saturday May 10 18:30 EDT.
The highest readings were:
-Server front:
98.1 F / 36.7 C
at
Friday March 10 06:40 EST.
-Cold air vent:
65.1 F / 18.3 C
at
Saturday December 9 15:30 EST.
The lowest readings were:
-Server front:
51.6 F / 10.8 C
at
Friday January 30 08:10 EST.
-Cold air vent:
37.8 F / 3.2 C
at
Wednesday January 17 04:00 EST.
This graph shows the machine room temperature over the last four days.
We have installed a TempTrax 2000 in our machine room to monitor the temperature and alert us if it goes outside pre-set bounds.
The probe has a rs232 interface and uses a simple and well-documented protocol. We wrote a simple daemon, tempd.c, that samples the temperature every 10 minutes, and makes an entry in /var/log/templog:
1049914980 72.7 1049914985 73.3 1049915005 71.5
The first number is the time in seconds from the Unix epoch, the second is the temperature.
This graph shows machine room temperature
from April 2003, with some gaps.
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