====== 2019 Winter Quarter Maintenance Schedule ======


===Andromeda Cluster Offline===

* Downtime Notice *

  * SYSTEM: Andromeda 1-40
  * DATE: 3/27/2018
  * START TIME: 0730
  * DURATION: 2 hours
  * AFFECTS:
These hosts will lose power as part of the work done to fix a bad power receptacle.  

===Titan Cluster Updates===

Titan Cluster Update
* Downtime Notice *

  * SYSTEM: cronus, oceanus, hyperion, rhea, tethys, themis
  * DATE: 3/28/2018
  * START TIME: 0900
  * DURATION: 1 hours
  * AFFECTS:
These hosts will be updated with the current kernel and security patches.  Each system will be rebooted following the application of patches.

(Please note this is an estimate; systems may be up sooneror later than expected, due to unforeseeable circumstances.)
===Asterix and Cacofonix Cluster Updates===

Asterix and Cacofonix Cluster Update
* Downtime Notice *

  * SYSTEM: asterix and cacofonix clusters
  * DATE: 3/27/2018
  * START TIME: 1300
  * DURATION: 1 hours
  * AFFECTS:
These hosts will be updated with the current kernel and security patches.  Each system will be rebooted following the application of patches.

(Please note this is an estimate; systems may be up sooneror later than expected, due to unforeseeable circumstances.)


===Sensorium Cluster Updates===

Sensorium Cluster Update
* Downtime Notice *

  * SYSTEM: sensorium cluster
  * DATE: 3/27/2018
  * START TIME: 1100
  * DURATION: 1 hours
  * AFFECTS:
These hosts will be updated with the current kernel and security patches.  Each system will be rebooted following the application of patches.

(Please note this is an estimate; systems may be up sooneror later than expected, due to unforeseeable circumstances.)

===Pedigree Cluster Updates===

Pedigree Cluster Update
* Downtime Notice *

  * SYSTEM: pedigree cluster
  * DATE: 3/27/2018
  * START TIME: 0900
  * DURATION: 1 hours
  * AFFECTS:
These hosts will be updated with the current kernel and security patches.  Each system will be rebooted following the application of patches.

(Please note this is an estimate; systems may be up sooneror later than expected, due to unforeseeable circumstances.)


===Instructional Host Updates===

Instructional Cluster Update
* Downtime Notice *

  * SYSTEM: odin.ics.uci.edu, hermod.ics.uci.edu, tristram.ics.uci.edu, motorhead.ics.uci.edu, kiss.ics.uci.edu
  * DATE: 3/26/2018
  * START TIME: 0700
  * DURATION: 1 hours
  * AFFECTS:
These hosts will be updated with the current kernel and security patches.  Each system will be rebooted following the application of patches.

(Please note this is an estimate; systems may be up sooneror later than expected, due to unforeseeable circumstances.)


===Spring Quarter Software Updates ===

The following software will be updated to the indicated version during the break between Winter and Sprint quarters 2019:

  * Anaconda
  * Clamp
  * FSL
  * Julia
  * OpenJDK
  * Python
  * Vagrant 2.2.4
  * VirtualBox


===Kenya UPS battery reconditioning ===
*** Downtime Notice ***

  * SYSTEM:         Kenya
  * DATE:           3/25/2019
  * START TIME:     0900
  * DURATION:       1 hours               

==AFFECTS==

The HITACHI file server should not be affected by the UPS being powered off as the public power will take the load while the UPS battery is being drained.  If it does lose power, the following extra and auto directories would be affected:

  * wayne_scratch0
  * chenli-research0
  * communications_scratch0
  * grad_space
  * ugrad_space

===IGB 10GB switch reboot ===
*** Downtime Notice ***

  * SYSTEM:         IGB 10GB Switch
  * DATE:           3/11/2019
  * START TIME:     0800
  * DURATION:       1 hours               

==AFFECTS==

The following hosts will experience a brief outage while the switch reboots.

  * arcus-10
  * arcus-11
  * arcus-12
  * arcus-13


===Jim Rockford Network Reconfiguration ===
*** Downtime Notice ***

  * SYSTEM:         jim-rockford.ics.uci.edu and virtual machine guests
  * DATE:           1/22/2019
  * START TIME:     0700
  * DURATION:       1 hours               

==AFFECTS==

The following hosts:services may experience brief outages during this period.

  * rockford-v0.ics.uci.edu:ldap
  * rockford-v1.ics.uci.edu:staff/faculty cycle service
  * rockford-v3.ics.uci.edu:lbnamed1 (DNS load balancer).
  * rockford-v4.ics.uci.edu:imap0
  * rockford-v6.ics.uci.edu:vault0
  * rockford-v7.ics.uci.edu:gitlab-ics53w2019

(Please note this is an estimate;  systems may be up sonner later than expected, due to unforeseeable circumstances.)