Many services were affected by a GPFS filesystem issue this morning. An NFS server in our GPFS cluster failed, affecting filesystem access generally, and services that rely on filesystem access. Systems were affected by at least 10am, and possibly much earlier. The filesystem was restored to normal operation before 2pm. A VMWare host server also failed earlier this weekend and may have contributed to this morning's problems. It, too, was restored to operation by CIS this afternoon. All services should be back to normal now.