✎ 2020 Winter Maintenance Notifications [Support Wiki]

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======Maintenance Notifications Winter 2020=====

===== Downtime Notice: Openlab Circinus Hosts =====

  * Date:  **3/23/2020**
  * Start Time:  **0800**
  * Duration:  **Approximately 8 hours**
  * Reason:  **The latest security and kernel updates will be installed on each host.  After installation, hosts will be turned off for about one hour to rewire power and networking for the hosts. **  
  * Affects:  **All services on each host including SSHD, Slurm, and SGE.**

===== Downtime Notice: https://hub.ics.uci.edu =====

  * Date:  **3/20/2020**
  * Start Time:  **0800**
  * Duration:  **Approximately 3 days**
  * Reason:  **The system has suffered some catastrophic failures requires a complete rebuild.**  
  * Affects:  **The personal hubs from https://hub.ics.uci.edu will be unavilabled.**

===== Partial Openlab Failure 2/6/2020 =====

  * [[requesttracker:dtr:74115|Partial outage on openlab cluster 2/6/2020 from 0820-1030 due to failed PDU]]

=====Downtime: hub.ics.uci.edu 3/23-3/25 =====

The kubernetes cluster running hub.ics.uci.edu will be reinstalled during Spring break.  We anticipate 1-3 days of downtime.

=====Kubernetes/hub.ics.uci.edu outage 1/30/2020=====

  * [[https://swiki.ics.uci.edu/doku.php/requesttracker:dtr:74024?do=edit|DTR #74024]]


===== Downtime Notice:  Multiple IGB Hosts =====

  * Date:  **1/6/2020**
  * Start Time:  **0800**
  * Duration:  **Approximately 2 hours**
  * Reason:  **The latest security and kernel updates will be installed on each host and then the host will be rebooted **  
  * Affects:  **All services on each host including SSHD, httpd and SAMBA.**

===== Downtime Notice: Cantor Storage Host =====

  * Date:  **3/20/2020**
  * Start Time:  **0800**
  * Duration:  **Approximately 4 hours**
  * Reason:  **The system has suffered a disk failure.**  
  * Affects:  **Any home or extra directories residing on the host will be inaccessible.**

==== SYSTEM ====


  * dover-1
  * dover-2
  * nebula-1
  * nebula-2
  * nebula-3
  * nebula-4
  * nebula-5
  * nebula-6
  * nebula-7
  * sequel-1
  * sequel-2
  * sequel-3
  * sequel-4
  * sequel-5
  * sequel-6
  * lambda
  * c1ccccc1-33

===== Storage Servers Relocation =====

A few servers will need to be moved in order to make room for the new IGB storage units.

==== astro-boy and cell-universe ====

  * Date:  1/22/2020
  * Start Time:  0800
  * Duration:  Approximately 4 hours
  * Reason:  Make room for new IGB storage
  * Affects:  All home and extra directories on theses hosts will be unavailable during move

==== nerve ====

  * Date:  1/23/2020
  * Start Time:  0800
  * Duration:  Approximately 4 hours
  * Reason:  Make room for new IGB storage
  * Affects:  All home and extra directories on theses hosts will be unavailable during move