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Table of Contents
Spring Quarter 2018 Maintentance Events
Calendar
Summer Break Maintenance
- Date: 6/18/2018
- Time: All Day
IGB and Instructiona OS Maintenance
Affected Hosts: All IGB Computing Hosts and ll instructional computing hosts
Reason: Installation of the latest kernel and security patches. Includes mitigation for the Meltdown and Spectre and Meltdown vulnerabilities.
Impact:
- ALL IGB managed hosts in the affected groups will receive the latest OS patches.
- ALL IGB hosts will be rebooted.
- Instructional hosts will be rebooted
Cisco Switch Power switchover
Affected Hosts: richard-castle, dover-1, dover-2, adrian-monk, tiamat, odin, disney, christopher-eccleston, liz-shaw, tom-baker, addison
Reason: Cisco switch is currently on a redundant power supply. When the RPS is turned off, it is expected for the Cisco switch to cut over to the main power.
Impact: All the hosts listed will lose network connection if the Cisco switch doesn't switch over to the main power as expected. Network connection should be back online in about 10 minutes.
MySQL Server Outage
Time: 0700 Duration: 30 minutes
Affected Hosts: mysql0.ics.uci.edu
Reason: This is being done in order to make a new slave to the master MySQL server.
Impact: Services dependent on central database server will be unavailable. This includes most ICS web apps.
GitLab Server Outage
Time: 0800
Duration: 8 Hours
Affected Hosts: gitlab.ics.uci.edu (rockford-v3.ics.uci.edu)
Reason: This is being done in order to upgrade Gitlab to the latest version.
Impact: All Gitlab functions will be unavailable during the upgrade.
Hitachi Fiber Upgrade
SYSTEM: ICS Hitachi Storage
DATE: 4/16/2018
START TIME: 0700
DURATION: 1 hour
REASON: Old fiber is being swapped with new ones to add more speed and bandwidth to the storage device.
AFFECTS: People with data on the device, ugrads that use the scratch space, and vagrant users can see some downtime.
Mail server migration
SYSTEM: SMTP (kate-beckett-v1, nancy-drew-v1, adrian-monk-v3), IMAP (columbo-v0, addison-v3, rockford-v4), MDA (kate-beckett-v5, nancy-drew-v5)
DATE: 4/10/2018
START TIME: 0700
DURATION: 1 hour
REASON: These hosts are being moved to the new haproxy servers.
AFFECTS: Mail hosts are all affected by this change.
