Downtime: Tuesday, October 28, 2008

On Tuesday, October 28, 2008, we will have a scheduled downtime from 4:00am to 8:00am EDT 8:00am to 8:30am EDT.

Scheduled work includes:

  • Replace the penguins cycle servers: The three old 32-bit Intel-based machines (tux, opus, willy) will be replaced with two 64-bit AMD-based machines. The two new machines will take the names opus and tux. We will deprecate the name willy.
  • OS updates for some of our infrastructure machines

SPECIAL NOTE: As we are replacing the hardware for the Linux cycle servers, all user crontabs on these machines will be deleted. You will need to backup your crontabs before the downtime, and restore them after the downtime.

Why is it happening:

  • The penguins machines are being replaced because they are outdated and have become difficult to support.
  • The infrastructure machines are getting OS patches as part of normal maintenance.

Update 10/27/08: Because we had an emergency downtime this morning, we were able to do most of the work scheduled above. We are now having a short downtime to swap the penguins cycle servers. Other parts of the department infrastructure will remain operational.