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Dear Users,</div>
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On <b>December 17th</b>, there will be a <b>power outage affecting all compute clusters</b> to allow a contractor to install new PDUs. The outage window will begin at
<b>6:00 AM</b>. Due to the nature of the work, we can only provide a general timeframe, and we expect the interruption to last
<b>most of the day</b>. Full recovery time is still <b>to be determined</b>.</div>
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As always, we will prioritize restoring core production services first so jobs can resume as quickly as possible.</div>
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<b>Affected services include, but are not limited to:</b></div>
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<div style="color: rgb(0, 0, 0);" role="presentation" class="elementToProof">General compute cluster availability (Farm & QCD)</div>
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<div role="presentation" class="elementToProof">JupyterHub</div>
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Tape library</li></ul>
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<b>Systems expected to be unaffected by the outage:</b></div>
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Interactives (ifarm &. qcdi)</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Lustre filesystems</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Work disk filesystems</li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
code.jlab.org and associated runners</li></ul>
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To reduce the impact on users, we will keep <b>Maintenance Day (December 16th)</b> very light to help ensure no user-facing disruptions to running jobs ahead of the outage.</div>
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We will provide updates as more information becomes available.</div>
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Best regards,<br>
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<b>Wesley, on behalf of the Scientific Computing Operations Team</b></div>
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