[Halld-offline] Scheduled Outage: Farm Nodes & /work Areas – Sept 23–24

[Alexander Austregesilo]

Dear Collaborators,

Please remember the announcement below. All JLab farm nodes including 
the interactive farm, the work disk, and JupyterHub will be unavailable 
starting tomorrow at 8am. This intervention will likely last until 
Wednesday noon.

Please plan accordingly.

Best regards,

Alex


-------- Forwarded Message --------







------------------------------------------------------------------------
*From:* Wesley Moore
*Sent:* Thursday, September 11, 2025 9:49 AM
*To:* Wesley Moore via Jlab-scicomp-briefs <jlab-scicomp-briefs at jlab.org>
*Subject:* Scheduled Outage: Farm Nodes & /work Areas – Sept 23–24
Dear SciComp Users,
A *scheduled outage* is planned for *Tuesday, September 23 through noon 
on Wednesday, September 24*, affecting *all farm nodes*, including 
*ifarm* and *JupyterHub*.
*Reason for Outage:*
A *failing disk shelf* affecting the |/work| areas requires urgent 
replacement. During this window, we will also perform:

  *

    Reboots across farm nodes

  *

    Application of *Maintenance Day (MD)* system patches

  *

    Firmware updates to farm19, farm23, sciml


*Affected Systems:*

  *

    All farm nodes

  *

    |/work| areas

  *

    ifarm

  *

    JupyterHub

*Downtime Window:*

  *

    *Start:* Tuesday, September 23, 8am

  *

    *End:* By *noon, Wednesday, September 24*

While we aim to restore services as promptly as possible, this extended 
outage window allows for:

  *

    Safety of on-site personnel

  *

    Proper hardware replacement and testing

  *

    Confidence in system stability before resuming production

A follow-up *"all-clear" notice* will be sent when systems are fully 
operational.
We appreciate your understanding and patience during this essential 
maintenance.
Best regards,
*Scientific Operations Team*
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