1. Other Networks
2. B548 Agronomy Server Room

The IEM server resides in a room that is climate controlled by a dedicated heat exchanger. This page presents daily plots of logged temperatures. There are four one-wire sensors measuring ambient temperature. The arrangement of these sensors has changed over the years. The current temperature observation points are:

• In Air Handler: Located at 5 feet above the floor at the intake of the heat exchanger.
• Out Air Handler: Located below the sub floor where the cooled air departs the heat exchanger.
• In Rack: Located on the front door of the rack at about 1 meter height.
• Out Rack: Located at the back of the rack at about 1 meter height.

Note that the archive begins 24 Jul 2003.

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Interesting Data Traces

• 16 May 2008
  Agronomy building looses chilled water supply, the heat exchanger later gets backed up on local 'cooler' water.
• 14 Jun 2010
  ISU Campus takes a power bump knocking out various utilities.
• 11 Aug 2010
  Flooding impacts ISU campus and the chilled water is shut off for a while.
• 24 Jun 2013
  Chilled water is turned off for an hour to check metering.
• 9 Aug 2016
  Fan bracket is repaired on heat exchanger.
• 10 Apr 2019
  Lightning strike knocks out chilled water and then power surge knocks out a few servers.
• 11 Apr 2020
  ISU FP&M shuts down chilled water supply to do some local construction work.
• 18 Mar 2022
  ISU FP&M shuts down chilled water supply to do some local construction work.
• 22 Mar 2022
  ISU FP&M shuts down chilled water supply to do some local construction work.
• 24 Aug 2023
  Fire at ISU FP&M shuts down chilled water supply.