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From:
<address@hidden>Date: Mon, Oct 3, 2016 at 2:45 PM
Subject: [Notifier] Mesa Lab / COLO Data Center Power Down SCHEDULED OUTAGE on 10/8/16
To:
SCHEDULED OUTAGE NOTIFICATION
Beginning Saturday, October 8th, the NCAR Colocation Data Center will be shut down to facilitate standard cooling plant maintenance. Operations begin at 06:00 on October 8th and are scheduled to end at 18:00 on October 8th.
Program system administration teams have been provided details on the work taking place. If you have questions regarding impacts to your program, check with your system administration team.
If you require additional information send your questions to:
address@hidden.
CISL Service Outage Information:
- NETS MLDC 10G Ethernet switches will lose connectivity while NETS reconfigures ml-mr-j1-es. All other Ethernet switches in the MLDC and in other areas of the Mesa Lab will remain up and connectivity will be available. The work on ml-mr-j1-es affects ml-mr-j2-es, ml-mr-j3-es, ml-mr-c7-gs, ml-mr-c9-gs, and ml-mr-c5-gs. The planned window for this work is 6:30 a.m. to 8 a.m.
- DNS: Internal DNS servers at ML are expected to remain up except for dnsi1 (128.117.64.44). External DNS servers at ML will be temporarily unavailable between 6:30-9am and dnsx1 (192.43.244.39) will remain down for the duration of the power down. DNS master servers, the remaining slave servers, and DNS servers at NWSC will remain up. DNS interruptions and slowness should be minimal assuming devices are configured to also resolve DNS queries with other servers. Infoblox hosted DNS and DHCP will failover to the NWSC node.
- The license servers for Mathematica and the PGI compilers will be down. However, Matlab on Yellowstone WILL NOT be affected because it uses a different license server for Matlab.
- UCAR web services: jira, drupal sites and
wiki.ucar.edu will be down.
- ExtraView (CISL Help Desk ticketing system) will be down. - Please contact CASG at x4300 or
307-996-4300.
- ML Active Directory Domain Controller: Windows CIT domain authentication should remain unaffected as two other domain controllers at different sites will be up.
- Cisco Anyconnect VPN will remain up, but without redundancy.
-
colopower.ucar.edu - Will be unavailable from 06:30 - 08:00.
- The CrashPlan backup service will be down during this time for both internal and external use.
SERVICES THAT WILL BE OFFLINE BETWEEN 6:30 and 9am:
- UCAS Password Changes via web: Changing UCAS passwords will be unavailable via the web at
https://kpasswd.ucar.edu/ but will remain available on Kerberized workstations. UCAS password authentication, Role Principal initiation, and Role Principal authentication will remain in service.
- UCAS Token Authentication: The external radius server at ML will be down and therefore systems configured to the external radius server will not allow token authentication (yubikey and cryptocard) to work until service is restored after the networking work is completed in the morning. This should not affect most staff and university users.
- The Mailman system, and mail to a few mailboxes inside UCAR, will be down, but will be returned to service after networking work is completed.
- External DNS: ML External DNS service will be temporarily offline during this time window.
Additional Power Down information can be found at:
https://wiki.ucar.edu/display/powerdown/ML+Colocation+Power+Down
START: Sat Oct 8 2016 6:00 AM MDT
DURATION: 12 hours
SERVICES AFFECTED
Mesa Lab / COLO Data Center Power Down
CONTACT
Jasen Boyington
address@hidden
303-497-1859
Posted by Jasen Boyington
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