Helium cluster maintenance for March 2012


The Helium administrative team has scheduled a maintenance downtime for the Helium cluster. The target date for this outage is March 9, 2012. Based on the type of work that will need to be done, this will be a complete outage. The outage will start at 6:00 AM on March 9 and it is anticipated that the cluster will be back up by March 10, 2012. Please let me know if there are any questions or concerns about this maintenance downtime.

Some of the items planned for this maintenance are:

  • update the Infiniband subnet manager routing algorithm to hopefully alleviate congestion on the fabric
  • tune the Lustre file system to make it behave better with smaller files and I/O requests
  • increase home account quotas to 1-TB