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--- projects:maint-9-21-2016 [2016/07/29 16:53]
Hans [Scheduled Preparation Week of 6/13]
+++ projects:maint-9-21-2016 [2016/09/16 13:10] (current)
vipada [Libya UPS Manual Reconditioning in critical rack A05. (RT Ticket #59847)]
@@ Line 1: / Line 1: @@
 ====== ICS Maintenance September 21, 2016 ======
 We will be making multiple potentially disruptive changes to ICS systems on this day.
-===== Planned Maintenance =====
+===== Overview =====
-Summary
+    * **Impacting**: SPF Email Implementation, see below. (RT Ticket #59623)
+    * **Impacting**: Openlab CentOS7 Update and new SGE queue (RT Tickets #60192 and #60193)
+    * **Impacting**: Network Switch Upgrade. (RT Ticket #59949)
+    * **Impacting**: Libya UPS Manual Reconditioning in critical rack A05. (RT Ticket #59847)
+    * **Impacting**:  Perform OS Updates and Reboot IGB Computing (RT Ticket #60195)
+    * Operating System Patches for all hosts begins 9/18.  (RT Tickets #60191)
+    * ICS Mailman List will no longer automatically respond to new subscribers. (RT Ticket #60110)
+    * Move Bren Hall Screen Content to Tier 1 File Server (RT Ticket #59959)
+    * Software Updates and module default load (RT Ticket #60194)
+    * Samba4 Deployment
+    * Virtual Box Upgrade
-    * Operating System Patches
+===== SPF Implementation =====
-    * Virtual Box Update
-    * SPF Email Implimentation
-===== Scheduled Preparation Week of 6/13 =====
+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.
-|Date Time |Description |
+===== Openlab CentOS7 Update, Patch and SGE Complex Assignments =====
-|9/18 |Begin performing yum update on all non-infrastructure CentOS hosts |
-|9/21 |Release Virtual Box and Docker Update via Puppet |
-|9/21 |Default Version update for Java, R, Mathematica, SAS, Matlab|
-|9/21 |Openlab Upgrade to CentOS7 |
-|9/21 |Openlab reboot |
-|9/21 |SPF Implementation (RT Ticket #59623)|
-|9/21 |Cisco Nexus Firmware Update|
-|9/21 |Libya UPS Manual Reconditioning. (RT Ticket #59847).  Possible downttime for hosts in Rack A05.|
+  * Openlab hosts running CentOS6 will be reinstalled with the latest version of CentOS7 and rebooted.
+  * The 15day.q and 12hour.q queues will be disabled.
+  * 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 test out the Openlab CentOS7 environment today by logging into openlab7.ics.uci.edu or submitting SGE jobs to the openlab.q queue.
-\\
+===== Network Switch Upgrade =====
-===== Operating System Patches =====
+In order to facilitate the retirement of the existing border switch, existing network switches that link to it will have their up link ports moved.  This move will cause temporary network outages to the servers throughout the day.
-Lates patches will be applied to all CentOS5, CentOS6 and CentOS7 hosts.
+===== Libya UPS Manual Reconditioning in critical rack A05. (RT Ticket #59847)   =====
-===== Virtual Box Update =====
+The UPS in critical rack A05 will be reconditioned.  This process will take about an hour during which time servers in this rack that do not have dual power supplies will be unavailable.
-All ICS systems with Virtual Box currently installed will be updated to the latest available.  **Any running Virtual Box instances will be shutdown.**
+ * The sites students.ics.uci.edu and faculty.ics.uci.edu will be offline.
+===== Perform OS Updates and Reboot IGB Computing (RT Ticket #60195) ======
-===== ICS Software Library Default Version Updates =====
+OS patches will be applied to all IGB CentOS 5, CentOS 6, CentOS 7 and Ubuntu servers throughout the day.  After patches are applied the computers will be rebooted.
-We've installed new versions of some core packages in /pkg.  Beginnin on 9/21, the module loads of the following packages  (e.g. module load java) will load the most recent version in the package by default:
+===== Operating System Patches =====
-  * Java
+Latest patches will be applied to all CentOS5, CentOS6 and CentOS7 hosts.  Hosts will not be rebooted unless otherwise noted above.
-  * R
-  * Mathematica (Software is available from Support).
+===== 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.
-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]]".
-===== Openlab reboot =====
-Openlab hosts will be rebooted througout the day to upgrade the operating system to CentOS 7 or to apply the latest CentOS7 patches.
-===== SPF Implementation =====
-ICS will be adding SPF records to our DNS record.  [[https://en.wikipedia.org/wiki/Sender_Policy_Framework|More information on SPF]]
-See [[services:email-settings|email settings]]
-On September 21st, ICS will publish a list of authorized sending hosts.  After this change, email that is sent that does not originate on one of these valid email senders may be rejected.
+===== 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.
+===== ICS Mailman =====
+Auto response on all ICS Mailman lists will be turned off in order to prevent mail bombing and preserve the ICS email server reputation.