[lqcd-users] December 17 Compute Cluster Power Outage

[Wesley Moore]

Dear Users,

On December 17th, there will be a power outage affecting all compute clusters to allow a contractor to install new PDUs. The outage window will begin at 6:00 AM. Due to the nature of the work, we can only provide a general timeframe, and we expect the interruption to last most of the day. Full recovery time is still to be determined.
As always, we will prioritize restoring core production services first so jobs can resume as quickly as possible.
Affected services include, but are not limited to:

  *
General compute cluster availability (Farm & QCD)
  *
JupyterHub
  *   Tape library

Systems expected to be unaffected by the outage:

  *   Interactives (ifarm &. qcdi)
  *   Lustre filesystems
  *   Work disk filesystems
  *   code.jlab.org and associated runners

To reduce the impact on users, we will keep Maintenance Day (December 16th) very light to help ensure no user-facing disruptions to running jobs ahead of the outage.

We will provide updates as more information becomes available.

Best regards,
Wesley, on behalf of the Scientific Computing Operations Team
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