SIRIS, ALTO, and NAS: Agent limits on BCDR devices



This article outlines agent limits on Datto BCDR devices


  • Datto SIRIS
  • Datto ALTO


The following chart displays Datto device models that have limits on the number of agents that you can add, and what those limits are.

Model Agent Limit
SIRIS 3 X1 1
SIRIS 3 X2 2
SIRIS 3 X4 4
ALTO 2 4
ALTO 3 4
Archived and paused agents count toward the total number of agents on your Datto device.
Unlike SIRIS 3 X, the newer SIRIS 4 X series of appliances do not have agent limits; however, certain per agent billing terms may apply. Contact your Datto Sales Executive for more information on per agent billing considerations.

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