Upgrade Dell PowerFlex to v3.6.x

Preparing to upgrade two-layer configuration—Linux and ESX-based

Steps to perform before upgrading PowerFlex components in a two-layer configuration, where SDCs are deployed on ESXi-based servers, and the other components are deployed on Linux-based bare metal servers.

1. Install one of the following on the PowerFlex Gateway and PowerFlex presentation server nodes, as described in detail in the system requirements in the Getting to Know Dell PowerFlex Guide:

   Option	Example
   Oracle JRE 1.8 build 301	Linux: rpm -i jre-8uXX-linux-x64.rpm Windows (for the PowerFlex Gateway only): Double-click the file: jre-8uXX-windows-x64.exe
   OpenJDK JDK 8 build 302.b08 or OpenJDK 11.0.12.0.7 NOTE:JAVA 8 is not supported on PowerFlex v3.6.3 and later versions. For more information, see Dell PowerFlex 3.6.2 Release Notes.	Refer to the following information: Linux: https://jdk.java.net/archive/ Windows (for the PowerFlex Gateway only): https://github.com/ojdkbuild/ojdkbuild#downloads-for-windows-x86_64

2. Download and extract the PowerFlex packages.
   You need the packages for your base version and for the latest version (the version to which you are upgrading).
3. For data networks using IPv6, if you plan to implement a floating virtual IP address for the MDM, disable the IPv6 DAD setting on the node's relevant interfaces, using the command:

    sysctl net.ipv6.conf.<interface_name>.dad_transmits=0

4. If you intend to use the CHAP component authentication feature after the upgrade, make the necessary preparations to ensure that you upgrade all system components now. Systems containing any components running PowerFlex versions lower than v3.5 do not support CHAP authentication.
   NOTE:Upgrade to v3.5 sets the CHAP authentication feature to DISABLED, and passwords will be all-zero. To enable the feature, after the upgrade is complete on all system components, follow the post-installation procedures described in the Configure and Customize Dell PowerFlex.