3.6.0 Matrix Server Upgrade Guide (5697-7085, February 2008)

Chapter 3: Rolling Upgrades 17
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Rolling Upgrade Procedures
The rolling upgrade procedure does not require any matrix downtime.
Each server is removed from the matrix, upgraded, and then returned to
the matrix.
There are two procedures:
Upgrade Matrix Server and reinstall the operating system. See page
18.
Upgrade Matrix Server without reinstalling the operating system. See
page 20.
Rolling Upgrade Considerations
You should be aware of the following when upgrading Matrix Server to
the 3.6.0 release:
Servers can be upgraded one-at-a-time during the rolling upgrade.
The server with the numerically highest primary IP address must be
upgraded first. Then continue to upgrade the servers in descending
order of IP address, with the server with the lowest primary IP
address being upgraded last.
It is important to upgrade all nodes in the matrix within a short time
frame. We do not recommend running the matrix for an extended
period of time with only some of the nodes upgraded to 3.6.0. This
release introduces a new configuration data repository and a new
logging facility that do not become fully functional until all nodes are
upgraded. If the matrix is only partially upgraded, alerts raised by
nodes running 3.6 will be improperly logged by nodes running 3.4.
Also, until the entire matrix is upgraded, many services that are run
on 3.6 nodes must be run as local system administrator.
Maintenance operations performed via MxDB for SQL Server are not
supported while the matrix includes a mix of 3.6.0 and 3.4.x servers.
Do not change the state of virtual SQL Servers until all of the nodes
have been upgraded to 3.6.0.
During the upgrade, the PolyServe Management Console will show
the version of Matrix Server that is currently running on the server to