Maintenance

Topics:
•
Removing an HA Association
•
Replacing a Dell SonicWALL Security Appliance

Removing an HA Association

You can remove the association between two Dell SonicWALL security appliances on MySonicWALL at any time. You might need to remove an existing HA association if you replace an appliance or reconfigure your network. For example, if one of your Dell SonicWALL security appliances fails, you will need to replace it. Or, you might need to switch the HA Primary appliance with the HA Secondary unit after a network reconfiguration. In either case, you must first remove the existing HA association and then create a new association that uses a new appliance or changes the parent-child relationship of the two units (see Replacing a Dell SonicWALL Security Appliance ).

To remove the association between two registered Dell SonicWALL security appliances:
1
Login to MySonicWALL.
2
In the left navigation bar, click My Products.
3
On the My Products page, under Registered Products, scroll down to find the secondary appliance from which you want to remove associations.
4
Click the product name or serial number.
5
On the Service Management - Associated Products page, scroll down to the Parent Product section, just above the Associated Products section.
6
Under Parent Product, to remove the association for this appliance:
a
Click Remove.
b
Wait for the page to reload.
c
Scroll down.
d
Click Remove again.

Replacing a Dell SonicWALL Security Appliance

If your Dell SonicWALL security appliance has a hardware failure while still under warranty, Dell SonicWALL will replace it. In this case, you need to remove the HA association containing the failed appliance in MySonicWALL, and add a new HA association that includes the replacement. If you contact Dell SonicWALL Technical Support to arrange the replacement (known as an RMA), Support will often take care of this for you.

After replacing the failed appliance in your equipment rack with the new unit, you can update MySonicWALL and your SonicOS configuration.

Replacing a failed HA Primary unit is slightly different than replacing an HA Secondary unit. Both procedures are provided in these sections:

•
Replacing an HA Primary Unit
•
Replacing an HA Secondary Unit
Replacing an HA Primary Unit
To replace an HA Primary unit:
1
In the SonicOS management interface of the remaining Dell SonicWALL security appliance (the Secondary unit), on the High Availability page, uncheck Enable High Availability to disable it.
2
Check Enable High Availability.

The old Secondary unit now becomes the Primary unit. Its serial number is automatically displayed in the Primary Dell SonicWALL Serial Number field.

3
Type the serial number for the replacement unit into the Secondary Dell SonicWALL Serial Number field.
4
Click Synchronize Settings.
5
On MySonicWALL, remove the old HA association. See Removing an HA Association .
6
On MySonicWALL, register the replacement Dell SonicWALL security appliance and create an HA association with the new Primary (original Secondary) unit as the HA Primary, and the replacement unit as the HA Secondary. See Registering and Associating Appliances on MySonicWALL .
7
Contact Dell SonicWALL Technical Support to transfer the security services licenses from the former HA Pair to the new HA Pair.

This step is required when the HA Primary unit has failed because the licenses are linked to the Primary unit in an HA Pair.

Replacing an HA Secondary Unit
To replace an HA Secondary unit:
1
On MySonicWALL, remove the old HA association as described in Removing an HA Association .
2
On MySonicWALL, register the replacement Dell SonicWALL security appliance.
3
Create an HA association with the original HA Primary, using the replacement unit as the HA Secondary as described in Replacing an HA Primary Unit .