Livermore Computing (LC) will be conducting facility work that requires two full power outages of Buildings 451 and 4525. Based on the availability of LLNL and LC electricians and staff, the outages are scheduled from July 30-August 3 and October 15-19, 2015. The two outage schedules are detailed below:

Outage 1 Outage 2
July 30 Oct. 15 4 PM All Open Computing Facility (OCF) production systems taken off-line and powered down. Running jobs will be cancelled, but queued jobs should not be lost.
July 31 Oct. 16 7 AM Power to B4525 and B451 office tower and computer room turned off.
Aug. 2 Oct. 18 6 PM Power to B4525 and B451 office tower and computer room restored.
Aug. 3 Oct. 19 Noon All OCF production clusters and services restored and available.

Visual representation of power outage timeline provided in chart above.

The power outages will impact the following LC services and resources:

  • no electrical power to offices B451 and B4525
  • All Collaboration Zone (CZ) and Restricted Zone (RZ) OCF production systems unavailable
  • CZ and RZ High Performance Storage System (HPSS) archival storage will be unavailable
  • CZ and RZ Atlassian Tool Suites will be unavailable (e.g., Confluence, Jira, Stash)

The following LC services and resources will not be impacted by the power outages:

  • All secure Computing Facility resources and production systems
  • The green network resources: Green Data Oasis and Green Linux Compute Cluster

PDF of TB503 (rev 2) for download and distribution.