✎ ICS Maintenance September 21, 2016 [Support Wiki]

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====== ICS Maintenance September 21, 2016 ======

We will be making multiple potentially disruptive changes to ICS systems on this day.


===== Overview =====

    * **Impacting**: SPF Email Implimentation, see below. (RT Ticket #59623)
    * **Impacting**:  Openlab CentOS7 Update and new SGE queue
    * Cisco Network Firmware Update.
    * Operating System Patches for all hosts begins 9/18.
    * Libya UPS Maual Reconditioning in critical rack A05. (RT Ticket #59847) 
    * Move Brenhall Screen Content to Tier 1 File Server (RT Ticket #59959)
    * ICS Mailman List will no longer automatically respond to new subscribers.
    * Software Updates (default version will be set to the latest instaleld)
      * Virtual Box
      * Java
      * R
      * Mathematics 
      * SAS
      * Matlab

===== SPF Implementation =====

After this change, email that does not originate on a mail server that is identified in the ICS SPF record may be rejected or tagged as spam at the destination.  See [[:services:email-settings|email settings]] for more important information about how this affects uesrs at ICS.

===== Openlab CentOS7 Update, Patch and SGE Complex Asignements =====

All Openlab Linux Hosts, inlcuding odin and milky-way, will be updated to the lastest version of CentOS7 Version and rebooted.  Openlab hosts running CentOS6 will be reinstalled with the latest version of CentOS7.

A new [[:services:sun_grid_engine:tips_and_tricks|SGE]] queue of openlab hosts running CentOS7 is available now as "[[:services:sun_grid_engine:queues|openlab.q]]".

The exclusive, h_vmem and s_vmem complexes will be assigned on all hosts in the openlab.q.  This will allow users to specify queues with exclusivity or high memory requirements.    [[services:sun_grid_engine:tips_and_tricks|Sun Grid Engine]]

You may experience the openlab CentOS7 environment now by logging into openlab7.ics.uci.edu.



===== Operating System Patches =====

Lates patches will be applied to all CentOS5, CentOS6 and CentOS7 hosts.  Hosts will not be rebooted.


===== Virtual Box Update =====

All ICS systems with Virtual Box currently installed will be updated to the latest available.  **Any running Virtual Box instances will be shutdown.**



===== Openlab Upgrade to CentOS7 =====

All ICS Openlab hosts will be upgraded to CentOS7 for the Fall Quarter 2016.  Faculty may test out this new environment today by logging into openlab7.ics.uci.edu.


===== Samba 4 Deployment =====

The Samba 4 servers will be deployed in place of the Samba 3 servers.  It is important that anyone who has their files opened through the Samba server should close any file connections opened on the desktop as the samba connection will be dropped.