# Guidelines for SharePoint Online Access Nodes

Verify that the access nodes for SharePoint Online meet the guidelines. Access nodes 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.

## Related Topics

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

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