4.1.0 HP Polyserve Matrix Server Upgrade Guide (T5392-96067, October 2010)

3 Non-rolling upgrades
Overview
If you are not performing a rolling upgrade, you can use one of the following methods
to upgrade the matrix:
• To minimize overall downtime, divide your servers into two groups and then up-
grade one group at a time while the other group runs the matrix. This method
minimizes downtime.
• Upgrade all servers at once.
Upgrades are supported from the 3.6.x releases only.
Custom installations of Matrix Server
When you upgrade Matrix Server, the Installer looks for the matrix configuration files
in the location where Matrix Server is currently installed and then applies the
configuration files to the new installation.
If you perform a custom installation of Matrix Server 4.1.0 and specify a new location
for the matrix software, the Installer will not be able to locate the existing configuration
files. To avoid this problem, take one of these steps:
• If Matrix Server is currently installed in a custom location, install Matrix Server
4.1.0 in the same location.
• If you need to install the 4.1.0 release in a different location, copy the backup
configuration files (see Back up the existing matrix, page 5) to that location
before installing Matrix Server 4.1.0.
HP PolyServe Software 4.1.0 upgrade guide 13