The Department of Mathematics server room MATH-843 (Gauss Haus) has been around for many years. With the increase in our computer equipment and the age of the Gauss Haus infrastructure, such as electricity and cooling, over the last year we started looking at upgrading the Gauss Haus infrastructure.

When we started investigating the upgrade of the Gauss Haus we found that IT@P provided a colocation room in the MATH basement in MATH-B60. After evaluating the cost to upgrade MATH-843 compared to the the yearly cost of the colocation room, we decided it was more cost-effective to move the Gauss Haus computers to MATH-B60 than upgrade the Gauss Haus, which would have been a very expensive upfront cost.

The MATH-B60 colocation room is a controlled access room and we will be provided 1.5 racks of space, air conditioning, and uninterrupted power supply (UPS) electrical power. I believe MATH-B60 is a much better environment for our computer equipment, and with the UPS power we should not have the power disruptions that we experienced in MATH-843.

To move our computer equipment from MATH-843 to MATH-B60 will require computer downtime. To reduce the impact on math users, we have decided to make the move over two days during spring break. The first day will require that the entire network be taken down which implies that there will not be any computer services during this time period. The second day will only require certain computers to be taken down at different times and will only effect different users at different times.

SCHEDULE OF EVENTS OVER SPRING BREAK

MARCH 11, 2008 6:00AM

  1. Shutdown the entire MATHNET. All equipment in MATH-843 will be turned off and no services will be available.
  2. Move and install computers zorn + Falcon Raid, conon (LDAP server), zada (Web Server), mailrelay + sonicwall firewall, and peano (dhcp server) into racks in MATH-B60
  3. Startup computers in MATH-B60 and test that all equipment is up and running and on the network.
  4. Startup computers in MATH-843 and test that all equipment is up and running and on the network.
  5. At this time all desktop workstations (not including Sunray clients) and laptops should be up and have access to the network. The desktop workstations (not including Sunray clients) and laptops should not be affected by the move on March 12.

MARCH 12, 2008, 8:00AM

  1. Shutdown bers, bessel and bohr in MATH-843.
  2. Move and install bers, bessel and bohr in racks in MATH-B60
  3. Startup bers bessel and bohr and test that all sunray servers are up and running and on the network..
  4. At this time all Sunray clients should be be able to connect to a Sunray server.
  5. The remaining equipment in MATH-843 will be shutdown and moved in no particular order. Before we move the remaining equipment we will send a shutdown notice to users giving them time to save any data and log off.

NOTE

  1. Do not plan on running any long compute intensive applications during this time period as they will be killed.
  2. We do not have a time of completion for the two days so we will put status information on the math computing web page. If you cannot access www.math.purdue.edu after 6:00AM on March 11 then assume all systems are down. When the math web server is up up you will be able to go to http://www.math.purdue.edu/computing and find status information on the move and related equipment.