Notices

Revision as of 18:58, 20 August 2013 by Steve410 (talk | contribs)

Unplanned service outages

gradx.cs.jhu.edu - Down at this time. Hardware issues. Undergoing troubleshooting to determine the source of the problem.

Planned outages

MAJOR motherboard repair of rtfm.cs.jhu.edu, one of our main CS Grad/Research Net file system servers, will create up to (but hopefully, much shorter than) 6-hour planned downtime for the Grad/Research Network. Our hardware service/repair company will be on-site completing repairs.

Outage will begin at 12am (midnight), Thursday, 8/22, and will last until 6am (or earlier) Thursday.

During that time, the following services will be unavailable:

  • Email in or out on the Grad/Research Net will be disabled. (Connections to smtp.cs.jhu.edu and pop.cs.jhu.edu will fail during that time. However, incoming mail to CS should queue at an alternative server.)
  • Email on the Undergrad Net will be disabled during this time (as CS Ugrad e-mail addresses are registered via a server on the CS Grad Net.)
  • DNS will only be available if you've configured your computer with a secondary DNS server. If you don't have a secondary server in your computer's DNS defined, please add 128.220.2.7 You may notice a delay in DNS name resolution when falling back to the secondary server.
  • Grad/Research Net user accounts/home directories will be inaccessible during the downtime.
  • Access to any of our Grad/Research Net linux clients (including gradx and masters1 through masters16, as well as Dr. Smith's pllab machines that we maintain) will be unavailable
  • peregrine.cs.jhu.edu (our Solaris login server) will be unavailable
  • Our mysql server, mysql.cs.jhu.edu, will be unavailable.
  • Samba shares will be unavailable.
  • Your Grad/Research Net web pages will be unavailable. (The webserver is expected to be serving minimal pages, mostly notices, during that time.)