You can add additional MediaAgents to an Air Gap Protect Network Storage Pool.
Procedure
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From the CommCell Browser, expand to Storage Resources > Storage Pools.
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Right-click the Air Gap Protect storage pool, and then click Add > Add StorageMediaAgents.
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In the Share Mount Path dialog box, select the MediaAgents that you want to add to the Network Storage Pool.
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Click OK.
 
Result
The MediaAgent is shared with all the available storage (mount paths) in the Storage Pool.