Downtime: Wednesday, December 10, 2008

On Wednesday, December 10, 2008, we will have a scheduled downtime from 4:00am to 8:00am EST.

This downtime only affects users of the beowulf clusters (c2, c3, and hbar). All other services (e.g., e-mail, web, databases, file servers, and cycle servers) will remain operational.

Scheduled work includes:

  • Move the nodes in the test cluster (c3) into the production cluster (c2).
  • Upgrade the production cluster (c2) to Rocks 5.
  • Decommission the hbar cluster with its single compute node.

With the participation of Jennifer Rexford, Fei-Fei Li, and David Blei, we are adding 14 additional nodes to the cluster. Eleven of these nodes have 16 GB RAM (instead of 8 GB RAM) and 8 cores per node (instead of 4 cores per node).

The hbar cluster was created specifically so that users could experiment with an 8-core machine. The expansion of c2 makes hbar obsolete. As a result, we will decommission hbar.