How to correctly backup GCEMS files when upgrading IMG software versions
Introduction:
When upgrading the Dialogic IMG Integrated Media Gateway (IMG) software to a newer build it is recommended that you back up certain Dialogc® Gate Control Element Management System (GCEMS) directories in order to preserve any existing configuration and license files.
Due to the way IMG software works, all installs must be done as root; however, some of the files written to during the install need to have the permissions of the excelsw user.
This article describes how to backup the correct files without overwriting any of the permissions set on the directories and at the same time compresses the backup so it take up less space.
Procedure:
To correctly back up the correct files and directories before an upgrade you will need to do the following:
1. In GCEMS ClientView, select the configuration object. On this object, click on the Query all tags and Refresh config buttons to update the configuration model within GCEMS
2. Also in ClientView, select File -> Save Configuration File. This will save a file with a .csa suffix containing the system configuration with the same name as the Configuration object in ClientView.
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3. Run the following commands to backup the configuration, license and appdata directories
tar -pcvzf config.tgz /opt/dialogic/common/config/*
tar -pcvzf license.tgz /opt/dialogic/common/license/*
tar -pcvzf appdata.tgz /opt/dialogic/common/appdata/*
The options for the tar command above are defined as follows:
p == preserve permissions
c == create archive
v == verbose (print names while making tar)
z == gzip
f == tar file name
In the list of commands the f must be the last command before the archive file name.
After the backup, move these files to a location other than /opt/dialogic (preferably to a backup server) as the new install will be placed in this location.
This will correctly back up the above directories if they are needed after the upgrade.
If the files are needed again
To uncompress a file use:
tar -pxvzf filename.tgz
The options for the tar command above are defined as follows:
p == preserve permissions
x == extract archive
v == verbose (print names while making tar)
z == unzip
f == tar file name
As with the tar command to compress the files the f must be the last command before the archive file name.
Product List:
Dialogic IMG Integrated Media Gateway
Dialogic Gate Control Element Management System (GCEMS)