Calendar

ICS Computing Support Maintenance Calendar

SYSTEM: Cybertron and Unicron Network Appliance Filers

DATE: TBD

START TIME: TBD

DURATION: 2 hour

Reason: Firmware upgrade. Upgrading OnTAP8 to the latest version.

Affects: There is no downtime associated with this work, however a small number of users may experience degraded performance on home or extra directories.

SYSTEM: Sensoria-mysql database server

DATE: 2/8/2018

START TIME: 1300

DURATION: 1 hour

Reason: Generate a mysql dump of the sensoria-mysql database

Affects: The database will be placed in read-only mode for this maintenance. Any writes to the database server will hang until the mysql dump operation is complete and tables unlocked.

SYSTEM: ns1.ics.uci.edu ns2.ics.uci.edu

DATE: 1/4/2018

START TIME: 2:30pm

DURATION: 10 minutes

Reason: Con added ns6.service.uci.edu into production. Since it didn't allow internal view, our lookup to uci.edu domain would go to the root domain and hit their external view dns servers and have an odd result. Adding forwarding zone for uci.edu to lookup from ns1.service and ns2.service resolves this issue for lookups internally.

Affects: Users should not notice any difference. It should stabilize lookups to uci.edu.

SYSTEM: All Intel Base Linux Hosts

DATE: TBD

START TIME: TBD

DURATION: 2 hour

Reason: Operating system updates are required to patch significant security vulnerability on ALL intel based computers.

Affects: Users will see intermittent downtime on all hosts and related services throughout the maintenance window.

SYSTEM: All systems where the Vagrant Package is installed.

DATE: 1/3/2017

START TIME: 1300

DURATION: 2 hour

Reason: Routine update to the vagrant package in order to install compatibility with latest VirtualBox package.