Ongoing

Any ongoing service-related issues are listed in this category.

April IRIS Server Patching

April 10, 2026 by Lars Rohrbach

Microsoft will release their patches for the month on Tuesday, April 14th, 2026. Various IRIS Windows and Linux servers will be patched and rebooted Tuesday, Wednesday, or Thursday.

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.

PRINT, WINTERM, and WDS will automatically patch and reboot Wednesday, April 15th, at 3:00am. WINTERM may be unavailable until 10:00am Wednesday, depending on additional software updates.

On Thursday, April 16th, 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.

Cory Hall partial power outage, Thursday, April 16, 2026

April 9, 2026 by Lars Rohrbach

Campus Facilities Services is scheduled to perform an urgent repair, replacing the main circuit breaker serving Cory Hall’s 188 Lab and 1st floor Mezzanine. An email from Logan Baldini, our Director of Facilities and Capital Projects, already went out on April 8 to Cory Hall occupants.

Work will take place Thursday, April 16, 8:15pm — 11:15pm. Power will be shut down for most of the south and west side of Cory Hall, including stairwells. Detailed room breakdown is available via Google Doc, attached to the email sent out by Logan.

We do not expect to lose power to our network switches and routers in Cory Hall during this work. If we do have unexpected power loss to our network equipment, then access to services hosted in Cory Hall (e.g. any research or instructional servers in 165 Cory) will be affected; we will monitor our equipment, but would expect service to resume once the electrical work is completed.

NetApp Fileserver Migration, Saturday April 18, 2026

April 3, 2026 by Lars Rohrbach

We are scheduling a NetApp migration to new hardware, from 8am to Noon on Saturday, April 18, 2026.

All Home directories and Project shares (CIFS/SMB and NFS) will experience disconnection during the migration 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. Because this is a migration to new hardware, clients may experience a series of short (minutes-long) disconnections as volumes complete their migration steps.

When maintenance is completed, NFS clients may 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.