How Does the ShadowSnap Agent Pair with a Datto Device?



This article explains the process behind pairing the ShadowSnap agent with a Datto device.


The ShadowSnap agent protects local physical and virtual Windows machines in conjunction with Datto's business continuity appliances: SIRIS, Virtual SIRIS, ALTO, and Virtual ALTO. In order begin the pairing process, the ShadowSnap agent needs to be installed on the target machine.

For more information about installing the ShadowSnap agent, see the article: Installing the ShadowSnap Agent


The ShadowSnap agent can be paired with a Datto device through the Agent Installation Wizard. For the steps to add an agent, see the knowledge base article: Agent Installation Wizard

During the process, the Datto device searches the database for the associated StorageCraft license for the new ShadowSnap agent. Prior to pairing, the installation of ShadowSnap and StorageProtect, an unique product key is given to that specific agent in which is put into our database. This represents the "handshake" between the ShadowSnap agent and the StorageCraft Activation Server.

This product key is directly connected to how the ShadowSnap agent is paired. It is able to be added through hostname, IP Address, or through FQDN. Once that connection is made, the Datto device searches the target machine to ensure that network connectivity is available as well as checking the state of the VSS writers.

After the ShadowSnap agent has confirmed the connection, the Datto device will create a directory that's directly connected to the ZFS file system as well as the device. This is known as the ZFS storage pool. As the final step after being added, it creates the agent's settings based on the critic given in the Remote Web such as backup settings, offsite sync, and any other configurations selected in the installation wizard.

Troubleshooting Resources

In the event that agent communication as failed, here are some articles that go in further detail about the potential issue:

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