30-Aug-2024

Network Disruptions: Tuesday, 03-Sep-2024 @ 10:00 AM

On Tuesday, 03-Sep-2024, between 10:00 AM and 11:00 AM, please expect brief network disruptions as we commission an upgraded hardware component. If you have any questions or concerns, please submit a ServiceRequest.

GitLab Update: Tuesday, 03-Sep-2024 @ 11:00 AM

On Tuesday, 03-Sep-2024, at 11:00 AM, the CLASSE GitLab will be unavailable for approximately one hour for a series of updates. Please submit a ServiceRequest if you have any questions or concerns.

LNS Protected Wifi

Please be aware that LNS Protected wifi is not meant for use in the Wilson Lab and Newman Lab office spaces. If you are connected to LNS Protected wifi in those spaces, the signal is likely to be weak and unreliable; please switch to Cornell's RedRover or eduroam wifi instead. The only areas with reliable LNS Protected wifi are:

• Wilson Lab: L0, CESR tunnel, Sector 7, East and Center modules
• Newman Lab: high-bay area in basement

Compute Farm Upgrade to AlmaLinux 9

Over the next few months, we will be upgrading the CLASSE Compute Farm from Scientific Linux 7 (EL7) to AlmaLinux 9 (EL9). During this upgrade, any submitted jobs will default to running on SL7 nodes, for legacy compatibility with some executables. However, if you wish to submit jobs to Alma9 nodes, please use the "-l os_name=el9" SGE GridEngine flag. To see which nodes are running Alma9 (and the queues on those nodes), please type "qhost -q -l os_name=el9". When the upgrade nears completion, we will change the default operating system from SL7 to Alma9. If you have any questions or concerns, please submit a ServiceRequest.

---

General network and server maintenance will occur every Tuesday from 12:00 noon to 2:00 PM. The CLASSE-IT group will always announce any expected disruptions in our NewsLetter and via CLASSE-IT-NEWS-L, but with the size and complexity of our network there is always the potential for something to go wrong. We will do our best to contain all network maintenance and planned outages to Tuesdays from 12:00 noon to 2:00 PM.

Unless other arrangements have been made, CLASSE-managed Windows systems may be updated and rebooted on Tuesday morning at 2:00 AM, so please avoid critical or lengthy operations at that time. For more details, please see SystemExpectations.

---

Questions or problems? Submit a service request.

Other resources:

• CLASSE-IT Home Page
• Previous newsletters

---