Data Center and systems outage, Monday, March 6, 2017.

In order to install a new breaker panel in the building 240 data center, electric power needs to be taken down for a subsection of the data center – unfortunately that section comprises the bulk of the computers in the room.

This outage will effectively take down the computers in the 240 data center. The outage window is expected to be from 9AM until 3PM on that day. The CELS IT systems affected will be:

* The CELS Linux/Unix services, including: file servers (project directories, home directories), login.mcs.anl.gov, building 240 linux desktops and linux print services, compute servers (see https://wiki.mcs.anl.gov/IT/index.php/General_MCS_Questions#computeservers for the list of compute servers), jenkins.cels.anl.gov, buildbot.mcs.anl.gov

* UPDATE: wired desktop networks for MCS, LCF, and CELS.

* accounts.mcs.anl.gov

* BIO divisional servers (Y Drive, X Drive, print server – use CIS server instead)

* SVN repositories hosted at repo.anl-external.org.

* The license servers for PGI, NAG, starcd, mathematica, totalview, idl, and accelrys.

* other project-specific systems and services not provided by CELS IT – expect to get announcements from the systems administrators of those systems.

The following will *not* be affected:

* Most websites hosted by CELS systems (including wikis, confluence, wordpress)

* E-mail list servers

* License servers for Intel, esgee, matlab

* ANL Authentication (anl.gov domain accounts, Single Sign On, etc.)

* ANL or externally provided apps (Exchange, Box, Workday, etc.)

* Building 240 office-side operations. Only the data center will be affected.

We apologize for the inconvenience. This outage was scheduled to coincide with scheduled downtimes already lined up for the primary systems in the room. Due to the scope of the work being provided, there is no way to perform this work in a safe manner without this level of power outage.