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

2 Rolling upgrades
Overview
Rolling upgrades are supported from the Matrix Server, MxDB for SQL Server, and
MxFS for CIFS 3.6.x and 4.0.0 releases.
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.
Upgrade considerations
When upgrading Matrix Server, you should be aware of the following:
• 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.
• The 4.1.0 version of the stand-alone PolyServe Management Console can be
used during the upgrade to connect to servers running the earlier release. How-
ever, there can be a long delay when opening the console on a server running
the earlier version. The console should be used only to view the cluster status; do
not make configuration changes other than those specified in the upgrade pro-
HP PolyServe Software 4.1.0 upgrade guide 7