The following is a tentative maintenance downtime scheduled for the 2019-2020 academic year. The majority of downtimes are the first Tuesday of each month but some may be moved to accommodate holidays or the academic calendar.
Please note: This schedule can, and likely will change, to respond to vendor software updates, critical security patches released off-schedule, or unplanned problems. We will update this page as soon as any decisions are made that affect the schedule.
Types of downtimes:
Center-wide – all services at CCR affected
Cluster-wide – all clusters affected but no other services
Cluster-specific – some, but not all, clusters affected but no other services
Cloud – all cloud services affected but no other CCR services
Dori Sajdak
The following is a tentative maintenance downtime scheduled for the 2019-2020 academic year. The majority of downtimes are the first Tuesday of each month but some may be moved to accommodate holidays or the academic calendar.
Please note: This schedule can, and likely will change, to respond to vendor software updates, critical security patches released off-schedule, or unplanned problems. We will update this page as soon as any decisions are made that affect the schedule.
Types of downtimes:
Center-wide – all services at CCR affected
Cluster-wide – all clusters affected but no other services
Cluster-specific – some, but not all, clusters affected but no other services
Cloud – all cloud services affected but no other CCR services
Services to be Updated:
FreeIPA – LDAP & authentication servers
Foreman – Installation servers - clusters affected
DNS – 1-2 times per year; done during center-wide downtimes only
Isilon Storage – 1-2 times per year; center-wide
Arista Networking – once per year; center-wide
GPFS Storage – once per year; cluster-wide
SLURM – all clusters affected; aim to update 4 times/year; dependent on software release schedule
Cloud - affects the CCR research cloud only; no other services affected
Downtime Dates & Tentative Update Plan
6/25/19 - Cluster-wide: Operating system updates & reboot
7/23/19 - CENTERWIDE: Details
8/13-14/19 - CENTERWIDE: Details
8/26/19 - Fall classes Begin
9/24/19 - Cluster-wide: Details
10/29/19 - Cluster-wide: Details
11/26/19 - Cluster-wide: Details
12/6/19 - last day of classes
12/16/19 - last day of final exams
12/17/19 - Cluster-wide: Details
1/21/20 - Cluster-wide: Details
1/27/20 - Spring classes begin
2/25/20 - Cluster-wide: Details
3/16-21/20 - Spring recess
3/17/20 - Cluster-wide (moved due to spring recess): Details
4/28/20 - CENTERWIDE: Details
5/8/20 - last day of classes
5/16/20 - last day of exams
5/26/20 - Cluster-wide Details
6/30/20 - Cluster-wide Details
8/4/20 - Cluster-wide Details
9/1/20 - Cluster-wide Details
Academic Year 20-21 Schedule coming soon