System Status

  • Hardware and software maintenance will be performed on the GPFS storage used by Grace and Grace-next, beginning Monday, March 27th.
    The maintenance is expected to be complete by the end of day, Wednesday, March 29th. During this time, logins will be disabled, and Grace’s storage will not be accessible from any cluster.

Cluster Maintenance

To perform critical updates and minimize downtime, regular maintenance will be performed on each cluster on a rotating schedule. Scheduled maintenance periods typically start on a Monday and run through the end of the following Wednesday. During maintenance, logins will be disabled, jobs will not run and cluster storage may be unavailable. Communication will be sent to users both 4 weeks and 1 week prior to the maintenance period.

Scheduled maintenance will be canceled if insufficient justification exists prior to the planned start. Communication will be sent immediately if a maintenance window is being canceled.


  • Mar 6-8 2017 Milgram
  • Mar 27-29 2017 Grace
  • Apr 17-19 2017 Omega
  • May 15-17 2017 Ruddle
  • Jun 12-14 2017 Grace
  • Aug 7-9 2017 Farnam
  • Sept 11-13 2017 Milgram
  • Oct 9-11 2017 Omega
  • Nov 6-8 2017 Ruddle
  • Dec 11-13 2017 Grace
  • Dec 15 2017 Omega Decommission

Note: Maintenance windows for Omega will include the HEP and G&G nodes.