Establish an HA Partnership

In this topic, you will create a partnership between two storage servers. In order to do this, configuration must be performed from both servers.

Very Important:

WARNING:  If you have an existing configuration on a SANmelody storage server and you want to add a partner, it is very important to begin step 1 (below) using the new “unconfigured” storage server.  and follow the instructions below. This will preserve the existing configuration. Please read the instructions carefully, as they will instruct you when and what to do on both storage servers.

If you are configuring SANmelody software for the first time, you may begin the instructions below from either storage server because both are considered “unconfigured.”

Before beginning:

• The first storage server used to begin configuration will be referred to as “Server1.”

• Ensure both storage servers have SANmelody software installed and running.

• If you are configuring for the first time, at this point both servers are in Read/Write mode in standalone configurations.

To Create a Partnership:

Configuration begins on Server1:

1. Check the status bar to ensure Server1 is in Read/Write mode. (The status bar is available when the Storage Server component is selected. The Lock button on the toolbar is used to toggle between modes. Refer to Read + Write/Read Only Switch.)
   

2. In the SANmelody snap-in, select the Storage Server component in the console tree.

3. In the right pane, right-click the server name and choose Partner… from the shortcut menu. The Storage Server Properties box opens to the Partner tab.

4. In the Operations area, click Allow Incoming Partner and click OK.
   

5. You will receive a message that your local configuration will be replaced by the configuration of the incoming partner. Click Continue if this is correct; otherwise, click Cancel and begin from the other storage server. (The DataCore Storage Domain Server service will be restarted. Please be patient, it may take a few seconds to perform this operation.)
   

6. Wait until you will receive a message to close MMC. Click OK in the message.
   

7. Close Computer Management on Server1.

 

Now, configuration is performed on Server2:

1. On Server2, in the SANmelody snap-in, select the Storage Server component in the console tree.

2. In the right pane, right-click the server name and choose Partner… from the shortcut menu. The Storage Server Properties box opens to the Partner tab.

3. In the Operations area of the Partner tab, click Add Partner and enter the computer name of the partner (Server1). Click OK.
   

4. You will receive a message that the configuration on this computer will be distributed to the partner. Click Continue.
   

5. You will see a progress bar as the partnership is being established.

6. You will receive a message when the partnership is complete and to apply the configuration. Click OK to the message.
   

   NOTE: If the partnership is denied, you will get a message that the server is Unreachable (the nodes cannot communicate), No License (not licensed for HA), or Refused (already has a partner.

7. Click the Apply button on the toolbar.

8. You will see a message asking if you would like to re-apply the configuration. Click OK on the message.

9. You will see a message that you are applying a blank configuration. If this is an initial configuration, this is expected and you can click OK; otherwise please click Cancel and ensure you are applying the correct configuration before proceeding.

10. You will see a message that the configuration was successfully applied. Click OK on the message.

11. This operation may take from a few seconds to a minute. When it is complete, you will see the partner name and status in the right pane under the Partner column. Your partnership is now complete.
    

 

Establish an HA Partnership