4 minute readApplies to: v4

How to set up per-server configuration when using high availability (HA)

By default, all servers share the same configuration files when configured for high availability (HA). This means that they connect to the same SCOM server, use the same Open Access loopback URL, use the same Data Warehouse etc.

If a server needs to use a different or unique configuration to the other servers then there are two things to consider:

  • When using multiple SCOM servers or SQL servers we recommend that these are load balanced, for example using a SQL Listener or load balanced SCOM.

  • If these services cannot be load balanced then 'configuration redirections', as described below, can be set up to give each server its own unique copy of a configuration which is not shared over HA.

Configuring different SCOM servers

You may wish to configure each Squared Up server to use a different SCOM server, as an alternative way of ensuring Squared Up remains up if one of the SCOM servers goes down. You can do this by defining separate SCOM connectivity settings for each server, for example, one Squared Up server pointing at SCOM server 1 and the other at SCOM server 2. To do this, follow the steps below, running the haconfigs command on the HA server that you want to target at a different SCOM server and using the file name scom.json.

Configuring different Open Access loopback URLs

You can also configure different Squared Up servers to use different Open Access loopback addresses. To do this set the loopback as normal for the Primary server and then follow the steps below running the haconfigs command on the Secondary server and using the file name openaccess.json to set a different loopback URL for the Secondary server.

Connecting to different Data Warehouse database instances

If you wish to configure Squared Up servers to use different Data Warehouse database instances follow the steps below, running the haconfigs command with the file name connections.json. This will only work if the database instances are for the same Data Warehouse and the same Management Group.

Configuration redirections

  1. On the server that you wish to have a different configuration, such as your Secondary Squared Up server, open a command prompt as an administrator (from Start > Run type command prompt, rightclick on the Command Prompt icon and click Run as administrator).

  2. Change to the Squared Up installation location, for example type:

    cd C:\inetpub\wwwroot\SquaredUpv4

  3. Run the squaredup4 haconfigs --filename=<filename> command to create a unique local-only configuration, where <filename> is the configuration file you wish to make unique for this server.

    For example:

    • squaredup4 haconfigs --filename=scom.json to create a unique SCOM server address configuration for this server

    • squaredup4 haconfigs --filename=connections.json to point this server to a different Data Warehouse

    • squaredup4 haconfigs --filename=openaccess.json to add a unique Open Access loopback URL

  4. After running the command, you will automatically be presented with an elevated Notepad, allowing the file to be edited for use on the local server only:

    squaredup4 haconfigs --filename=<filename>

  5. Edit the file as required, and save your changes.

  6. For some configurations to come into effect, you will need to recycle the SquaredUpv4 application pool. This tool does not automatically recycle the application pool after making or editing a configuration. You can recycle the SquaredUpv4 application pool from IIS or by running the command squaredup4 recycle.

Viewing redirects

You can view which configurations are unique to the current server by running squaredup4 haconfigs with no additional arguments. This will also show how the local file is different to the HA-shared copy:

squaredup4 haconfigs to see how the local configuration differs from the share

Editing an existing redirect

If you run squaredup4 haconfigs --filename=<filename> where there is already a redirect in place for <filename>, an elevated notepad will be opened to allow you to edit the local configuration file.

Removing redirects

To remove a redirect, run squaredup4 haconfigs --filename=<filename> --delete

A manual confirmation is required to finish deletion.

To remove a redirect/local configuration

How to configure High Availability (HA)

Troubleshooting Open Access

How to configure Windows authentication when Squared Up is installed on load balanced servers

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