User`s guide

372 XgOS User’s Guide • September 2014
Basic Upgrade Process
If you are upgrading from XgOS 3.5.0 to XgOS 3.6.0 or later, you do not need to keep
the Oracle Fabric Interconnectr software and host driver software in exact
synchronicity. In fact, XgOS software and host driver software can be upgraded
independent of each other. However, you should keep the XgOS software and the
host driver software reasonably in sync. For example, running 3.6.0 XgOS with 3.5.0
Xsigo host driver software provides you with a more optimized environment than
running Xsigo 3.6.0 XgOS with 2.8.5 Xsigo host drivers.
To minimize service interruption, use the following process to upgrade your
systems:
1. Upgrade the OS on one Oracle Fabric Interconnect.
While this upgrade is in process, servers that use this Oracle Fabric Interconnect.
as their primary vNIC connection fail over to using their secondary vNIC. This
way, they are isolated from the newer software for which their drivers are
possibly not compatible.
Follow the steps in “Upgrade OS on the Oracle Fabric Interconnect” on
page 20-373 to upgrade the OS on the primary Fabric Director.
2. Upgrade the host drivers, the HCA firmware, and possibly the option ROM on
each server.
After you upgrade each server, it reboots. When it comes back up, it re-establishes
a connection to its primary vNIC. This way, the server is now connected to an
Oracle Fabric Interconnect with a new XgOS using upgraded (and therefore
compatible) host drivers.
Follow the steps in one of the following procedures to upgrade each of your host
servers:
■ “Upgrade Linux Host Servers That Boot Locally” on page 20-376
■ “Upgrading Linux Hosts In a SAN Boot Environment” on page 379
■ “Upgrade VMware Host Servers” on page 20-380
■ “Upgrading Windows Host Servers” on page 20-381
3. Once all servers are upgraded, upgrade the OS on the second Oracle Fabric
Interconnect.
Follow the steps in “Upgrade OS on the Oracle Fabric Interconnect” on
page 20-373 to upgrade the OS on the secondary Oracle Fabric Interconnect.
You should read the complete upgrade instructions before attempting any system
upgrade. For information about upgrading Oracle’s Fabric Manager, see the Oracle
Fabric Manager User’s Guide.