ITS Service Status Report

Scheduled Maintenance — Resolved

BlueCat server restarts

Services Affected: BlueCat server restarts

Start Time: 05/15/2021 11:00 pm

Maintenance Completed: 05/16/2021 1:09 am

Issue Symptoms: None

Restarting four of the BlueCat DHCP servers to prevent a possible memory issue.

These servers are in redundant pairs, so there will be no interruption to the service.

Dynamic Host Configuration Protocol (DHCP) provides network configuration to computers that connect to the network, including their IP Address, subnet mask, network gateway, time server, DNS domain, etc.

Who is Impacted? guest networks, ITS buildings

Next Update: 1:30 AM

Technical Details

Service Type: Production

Server Name: adonis1, adonis2, bdds-its-cool-1, bdds-its-seb-1.umnet.umich.edu

Comments:

This will finish a little later, probably by 1:00 AM.  No impact to users.

12:54 AM - NOTICE - We have run into an issue that required restarting the BlueCat web process.  Expected downtime 10 minutes.  No impact to DNS or DHCP services.  Logged in users will be logged off.  The netreg.it.umcih.edu server will not work during this restart.

1:10 AM  Completed.

Groups Notified:

Report Additional Impacts

Contact the ITS Service Center for more information or to report additional impacts.