09-Sep-2024

Potential Service Interruptions: Tuesday, 10-Sep-2024 @ 10:00 AM

On Tuesday, 10-Sep-2024 @ 10:00 AM, maintenance will be performed on the CLASSE virtual machine cluster. Although no interruptions are expected, you may experience a momentary pause in access to the following servers and services.

• RSLogixApp
• Vault
• WinAPP2
• galaxy and galaxy-dev
• sr2 (stockroom)
• accserv (/nfs/acc/libs)
• AppsAnywhere
• GitLab
• JupyterHub
• NoMachine
• CHESS userdb database
• chswana01
• Pritunl
• ScreenConnect
• Globus
• Central License Server - lnxlm

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

On Tuesday, 10-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.

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.

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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.

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Questions or problems? Submit a service request (or email service-classe@cornell.edu).

Other resources:

• CLASSE-IT Home Page
• Previous newsletters

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