How much does AWS S3 cost if we choose to backup G Suite data to Amazon AWS S3 storage?
If you choose to store your backup data in an AWS S3 bucket, there is a separate cost for S3 storage. AWS S3 pricing can be complicated. You can find detailed information at https://aws.amazon.com/s3/pricing/.
When backing up to the AWS S3 cloud, CubeBackup employs S3 Standard-Infrequent Access storage. Based on our statistical data, the average cost of S3 cloud storage is about $0.013/GB/Month ($13/TB/Month).
CubeBackup employs incremental backups. After the first backup, only new or modified data is retrieved from the Google cloud. So, subsequent backups should not take up a lot of storage space.
During the first month, the cost of S3 may be 2 or 3 times higher than expected ($0.013/GB/Month). This is because Amazon AWS charges for S3 API requests, and CubeBackup may generate a large number of AWS S3 API requests during the initial backup. However, after this initial backup, subsequent backups are incremental so that only new or modified data will be uploaded to the S3 bucket, and therefore your S3 costs should stabilize at about $0.013/GB/Month.
Google Docs native files, like documents and spreadsheets, take up no space on Google Drive, but they do take up space when exported to backup storage. Gmail attachments will be downloaded with BASE64 encoding, which makes the backup files approximately 37% larger than their binary format. Thus, the space of G Suite backups may be 30%-40% larger than their size in the Google cloud.
Wasabi is a more affordable option than AWS S3, and CubeBackup supports backing up to Wasabi. However, based on our testing, the stability and throughput capabilities of Wasabi are unfortunately not as good as that of AWS S3 storage.