ITS Service Status Report

Scheduled Maintenance — Resolved

YBRC Maize OS Upgrade

Services Affected: Statistics and Computation, Restricted Data YBRC services

Start Time: 03/21/2022 8:00 am

Maintenance Completed: 03/21/2022 4:03 pm

Issue Symptoms: Outage

We will be undergoing a disruptive upgrade of the back-end operating system during business hours. To perform the upgrade on the Maize cluster, we will have to take the entire cluster offline for both days. 


update 3/21 2pm: The cluster update is completed.  We are running diagnostics to make sure that the cluster update has no errors or issues.   Customer VMs are still offline.  Once this step is complete, we will begin turning VMs back on.  

update 3/21 4pm: The cluster update is complete and all machines are back up and running.  Users should be able to login to their machines.  Please let us know if you see any issues.  

Who is Impacted? Users of the restricted data YBRC service

Next Update: none

Technical Details

Service Type: Production


update 3/21 4pm: We updated the vOS from 4.5 to 4.9 and cleaned up the databases for tenants to remove some extraneous data.   In this version, the vSAN is far more tolerant of heavy system load and we should see fewer issues with contention going forward. 

Groups Notified:

  • ybrc-maize-users

Report Additional Impacts

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