Mirrored Redundancy is a licensing model that allows a pair of ThinManager Servers to be synchronized with the same configuration so the thin clients can receive their configuration from the backup TMS if the primary ThinManager Server goes down. It is different from full redundancy in that ThinManager can only be run on the primary ThinManager Server. There is not a ThinManager interface in a mirrored installation.
If the primary ThinManager Server fails the thin clients will boot from the secondary ThinManager Server but the configuration cannot be changed until the primary ThinManager Server is returned to service.
Full Redundancy has two fully functional and licensed ThinManager Servers. If the primary ThinManager Server is unavailable the secondary ThinManager Server will provide the configurations to thin clients. Changes to the configuration can be made on either ThinManager Server.
See Redundancy for more details.
To set up Mirrored redundancy:
This section will cover the highlights of Mirrored licensing. See ThinManager Licensing for full details.
When a pair of ThinManager Servers are auto-synchronized the Licensing window will display the Installation ID of both ThinManager Servers.
Licensing Dialog Box - Synchronized ThinManager Servers
The Installation ID at the bottom of the window is used to obtain the License File from the ThinManager license site. Mirrored licenses and Enterprise Server licenses require the Installation ID of both ThinManager Servers for activation.
Go to the ThinManager License Site to activate the license as described in ACP Licensing.
Login and select the Activate License link.
Mirrored License Activation
When a license is a Mirrored license or an Enterprise Server license then the ThinManager License Activation site will ask for the Installation ID of the secondary ThinManager Server in addition to the Installation ID of the primary ThinManager Server.
After the first Installation ID is entered and submitted, the site will recognize the license and ask for the second Installation ID.
Enter the Installation ID of the secondary ThinManager Server into the Mirrored Installation ID field and select the Submit button.
The license will download as described in ThinManager Licensing.
Add the license as described in ThinManager Licensing..
Added Licenses
Once a Mirrored license is added the Licensing window will display the license with both ThinManager Servers as the location.
ThinManager will display both ThinManager Servers on the Licenses tab of the Details pane.
License Tab
When a Mirrored license is activated the mirrored ThinManager Server will allow thin clients to boot from it but it does not allow the ThinManager to run and allow configuration changes like a fully redundant ThinManager Server allows.
Mirrored ThinManager Server
The Mirrored ThinManager Server will show a message indicating that the ThinManager is not allowed to display the ThinServer data.
Note: A fully redundant ThinManager Server with a complete set of duplicate licenses will allow the display of the ThinServer data and will allow changes to the configuration.
Updated 7/19/2007