# Amazon S3 (Simple Storage Service)

You can use the Commvault software to back up and restore Amazon S3 (Simple Storage Service) and fully S3 compatible storage.

## Backups

### Backups You Can Perform

- Full backups

- Incremental backups

- Synthetic full backups

### Data You Can Back Up

- Amazon S3 general purpose buckets and objects

- Amazon S3 Express One Zone directory buckets and objects

- Amazon S3 Files (filesystem interface on S3)

  Backup is performed by protecting the underlying S3 bucket associated with the S3 Files filesystem. Backup operations interact directly with S3 APIs rather than the mounted filesystem. The backup operates at the object level while preserving filesystem metadata including file data, directory structure, timestamps, and basic attributes.

- With full and incremental backups, you can back up the following data at the object level:

  - Metadata of the object

  - ACLs of the object

  - Tags of the object

  Note

  After a full backup, if the tag or the ACL of an object is modified, but the data has not changed, then the next incremental backup does not include that object. Incremental backups include only objects whose data has changed.

- For S3 Compatible storage, see S3 Compatible Storage.

### Data You Cannot Back Up

- Older versions of an object

- Files and folders without a name.

- Files and folders that contain a forward slash ("/") in their names.

- Glacier Deep Archive data and Glacier Flexible Retrieval (formerly Glacier) data in the Amazon S3 storage class.

  You can view the archive objects in the failed items list of the backup job.

## Restores

### Destinations You Can Restore To

- The original location (in place)

- To a different Amazon S3 account, and to the following cloud storages (out-of-place):

  - Azure Blob

  - Azure Files

  - Google Cloud

  - Ali Cloud

  - IBM cloud

  - Azure Data Lake Gen2

- Disk

### Data You Can Restore

- Data, along with the metadata

  Note

  You cannot restore metadata to a different cloud storage system.

- ACLs

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