Guidelines for SharePoint Online Access Nodes

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Verify that the access nodes for SharePoint Online meet the guidelines. Access nodes are virtual machines, cloud instances, or physical servers that run backups and other operations.

Note: For high availability (which is recommended for the first full backup), use 2 or more access nodes.

Environment

Medium

Large

Service accounts or apps

5 or more

10 or more

Data backed up each day

500 GB

1 TB

Guidelines

CPU or vCPU for the access nodes

4 cores

8 cores

RAM for the access nodes

8 GB

16 GB

Access nodes

  • Normal availability: 1

  • High availability: 2 or more

  • Normal availability: 1

  • High availability: 2 or more

Note: Ensure that at least 100 GB of space is available on the access node.

To fetch the size and the number of items in a site collection, see Powershell Script to Fetch Site Level Statistics.