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FYI: let’s try to get our pass 2 GMN cooking done before this long outage of the tape silo!
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<div>Andrew <br>
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<div dir="ltr"><span style="background-color: rgba(255, 255, 255, 0);">puckett.physics.uconn.edu</span></div>
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Begin forwarded message:<br>
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<div dir="ltr"><b>From:</b> Bryan Hess via Jlab-scicomp-briefs <jlab-scicomp-briefs@jlab.org><br>
<b>Date:</b> December 4, 2023 at 1:16:47 PM EST<br>
<b>To:</b> jlab-scicomp-briefs@jlab.org, lqcd-users@jlab.org<br>
<b>Subject:</b> <b>[Jlab-scicomp-briefs] Jefferson Lab Data Center Maintenance work Jan 2 - 8, 2024</b><br>
<b>Reply-To:</b> Bryan Hess <bhess@jlab.org><br>
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Dear All,</div>
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Following the Jefferson Lab shutdown in January 2024, several service-affecting data center changes are scheduled. The work will be begin starting Tuesday Jan 2<sup>nd</sup> to avoid conflicts with with the beam schedule for physics. </div>
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<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">The Tape Library will be out of service Tuesday Jan 2<sup>nd</sup> until Monday, Jan 8<sup>th</sup>. The library
will be modified to add additional tape drive expansion room and a second robotic accessor. Tape storage tools, including jcache and LQCD srm tools, will not be available during that time. Farm jobs requiring files from tape will queue until the library reconfiguration
is completed. Farm jobs running from disk will continue to be scheduled. </span></li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">A single day power outage for compute clusters including the farm and LQCD is being coordinated with Facilities
Management during this period. Additional information will follow once a date is fixed. </span></li><li style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">A Slurm upgrade to the farm is planned during this week. Although Slurm upgrades are typically transparent to user
jobs, there is the possibility that the queue of pending jobs will need to be cleared. Additional information about the timing will follow. The Slurm upgrade will add new GPU and CPU scheduling capabilities, patch security issues, and prepare the farm for
the AlmaLinux 9 upgrade. </span></li></ul>
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For any questions or concerns please submit a <a href="https://jlab.servicenowservices.com/scicomp" title="https://jlab.servicenowservices.com/scicomp" id="LPlnk844168" class="OWAAutoLink">
Service Now</a> Incident.</div>
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