155
D14049.05
February 2009
Grey Headline
(continued)
TANDBERG
VIDEO COMMUNICATIONS SERVER
ADMINISTRATOR GUIDE
Introduction
Getting started
Overview and
status
System
configuration
VCS
configuration
Zones and
neighbors
Call
processing
Bandwidth
control
Firewall
traversal
Appendices
Applications
Maintenance
Upgrading software
!
For security reasons we recommend that you change the
default
admin
administrator password after upgrading to
X4.
It is possible to install new releases of the VCS software on your
existing hardware. Software upgrades can be performed in one
of two ways:
using the web interface (HTTP/HTTPS
•
)
- this is the
recommended process
using secure copy (SCP/PSCP
•
)
.
This section describes how both of these methods are used to
perform upgrades.
You can also upgrade the VCS software using TMS. See
the TMS guide for more information.
For specific information about upgrading and downgrading
for peers in a cluster, refer to the
Upgrades and
downgrades
section of the Clustering chapter.
Prerequisites
The upgrade requires you to have:
a valid Release key. This is required for upgrades to a major
•
release, e.g. X3.1 to X4.0; it is not required for dot releases,
e.g. X4.0 to X4.1)
a software image file.
•
Contact your TANDBERG representative for more information on
how to obtain these.
Backing up before upgrading
The VCS’s existing configuration will be restored after performing
an upgrade. However, we recommend that you make a backup of
the configuration before upgrading. How you do this will depend
on the version of software currently running.
Versions prior to X3.0
Use the command line interface to log on to the VCS.
1.
Issue the command
2.
xConfiguration
.
Save the resulting output to a file, using cut-and-paste or some
3.
other means provided by your terminal emulator.
To restore your configuration:
Remove the
1.
*c
from in front of each command.
Paste this information back in to the command line interface.
2.
Version X3.0 and later
Backups can be made automatically. See the
Backup and
restore
section for full details.
Upgrading and option keys
All existing option keys will be retained through the upgrade from
one version of software to the next, including upgrades to the
next major release. However, we recommend that you take note
of your existing option keys before performing the upgrade.
New features may also become available with each major release
of VCS software, and you may need to install new option keys if
you wish to take advantage of these new features. Contact your
TANDBERG representative for more information on all the options
available for the latest release of VCS software.
Installing and restarting
Upgrading software is a two-stage process. Firstly, the new
software image is uploaded onto the VCS. At the same time,
the current configuration of the system is recorded, so that this
can be restored after the upgrade. During this initial stage the
system will continue running on its existing software version, and
all normal system processes will continue.
The second part of the upgrade involves restarting the system. It
is only during the restart that the VCS installs the new software
version and restores the previous configuration.
This means that you can upload the new software to your
system at any time, and then wait until a convenient moment
(for example, when no calls are taking place) to install the new
version by rebooting the system. However, this also means
that any configuration changes made between the upload and
the reboot will be lost once the system restarts using the new
software version.
Overview
