EXADATA -- installing DST fixes for 2016

Recently installed DST patches to Exadata Cells, and I must say it is pretty straight forward.
The approach to be followed is no different than the action plan documented in "Exadata Instructions as Turkey Continues on Daylight Savings Time From 2016 (Doc ID 2195169.1)"
I have done this demo for making Exadata cells to be aligned with the recent Turkish DST rule change. ( Turkey decided to not to observer DST rules any more, Turkey decided to stay in ETC+3)

The most important thing to be done is to check the OS release of our Cells in order to decide the correct tzdata patches for our CELL OS nodes.

[root@osrvcel01 ~]# cat /etc/redhat-release

Red Hat Enterprise Linux Server release 5.5 (Tikanga)

It is also important to ensure the image version is up-to-date enough for updating the tzdata packages.
Note : this approach is applicable for Oracle Exadata Storage Server Software between 11.2.2.4.2 to 12.1.2.3.3 , in short Release 11.2 to 12.1.

Note that, the Exadata in this demo is a quarter rack Exadata X3-2.

[root@osrvcel01 ~]# imageinfo

Kernel version: 2.6.18-238.12.2.0.2.el5 #1 SMP Tue Jun 28 05:21:19 EDT 2011 x86_64

Cell version: OSS_11.2.2.4.2_LINUX.X64_111221

Cell rpm version: cell-11.2.2.4.2_LINUX.X64_111221-1

Active image version: 11.2.2.4.2.111221

Active image activated: 2012-01-23 16:26:35 +0200

Active image status: success

Active system partition on device: /dev/md5

Active software partition on device: /dev/md7

In partition rollback: Impossible

Cell boot usb partition: /dev/sdm1

Cell boot usb version: 11.2.2.4.2.111221

Inactive image version: undefined

Rollback to the inactive partitions: Impossible

After checking these prereqs, we just update our Os packages using rpm commands, as depicated below..
No reboots, no restarts are needed.

[root@osrvcel01 rpmler]# rpm -Uvh --nodeps tzdata-2016g-2.el5.x86_64.rpm 

warning: tzdata-2016g-2.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 1e5e0159

Preparing...                ########################################### [100%]

   1:tzdata                 ########################################### [100%]

[root@osrvcel01 rpmler]# rpm -Uvh --nodeps tzdata-java-2016g-2.el5.x86_64.rpm 

warning: tzdata-java-2016g-2.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 1e5e0159

Preparing...                ########################################### [100%]

   1:tzdata-java            ########################################### [100%]

[root@osrvcel01 rpmler]# date

Tue Nov  1 11:34:15 +03 2016