Scheduled Maintenance

NetApp Fileserver Maintenance, Friday November 28, 2025

November 12, 2025 by Lars Rohrbach

We are scheduling a NetApp ONTAP upgrade, to apply a necessary update to our NetApp fileservers, from 8am to 12pm on Friday, November 28, 2025.

All Home directories and Project shares (CIFS/SMB and NFS) may experience disconnection during the update that may cause data loss on active, open files. Please close your open files and save them before Friday morning. Services (e.g. webservice) that depend on this storage will also be temporarily down or unresponsive.

When maintenance is completed, NFS clients should automatically resume normal operation, but a reboot should help if they don’t. CIFS clients (such as Windows and MacOS) may need to remount filesystems, or simply be rebooted.

November IRIS Server Patching

November 7, 2025 by Lars Rohrbach

Microsoft will release their patches for the month on Tuesday, November 11th, 2025. Various IRIS Windows and Linux servers will be patched and rebooted Tuesday, Wednesday, or Thursday.

PRINT, WINTERM and WDS will automatically patch and reboot Wednesday, November 12th, at 3:00am. WINTERM may be unavailable until 10:00am Wednesday, depending on additional software updates.

Linux servers lists.eecs, iris2.eecs (for access to the network and roster databases) will be patched and rebooted Wednesday night. DNS servers cronus and themis may also be briefly unavailable while rebooting at approximately 8:00pm Tuesday.

On Thursday, November 13th, the departmental DHCP server is scheduled for downtime from about 9am to 9:30am (actual downtime is expected to be shorter than scheduled). Linux login servers login.eecs/login-mfa.eecs will also be patched and rebooted around this time.