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The Inventory Manager collects data from your instances, including operating system and application versions. Inventory Manager can collect data for the following:

 Operating system name and version

 Applications and filenames, versions, and sizes

 Network configuration, including IP and media access control (MAC) addresses

 Windows updates, roles, services, and registry values

 CPU model, cores, and speed

You choose which instances to collect data from by creating a regionwide inventory association by executing the AWS‐GatherSoftwareInventory policy document. You can choose all instances in your account or select instances manually or by tag. When you choose all instances in your account, it's called a global inventory association, and new instances you create in the region are automatically added to it. Inventory collection occurs at least every 30 minutes.

When you configure the Systems Manager agent on an on‐premises server, you specify a region for inventory purposes. To aggregate metadata for instances from different regions and accounts, you may configure Resource Data Sync in each region to store all inventory data in a single S3 bucket.