AWS Storage Gateway vs Borg: What are the differences?
Developers describe AWS Storage Gateway as "Connect your on-premises IT environment with AWS’s storage infrastructure for data backup and disaster recovery". The AWS Storage Gateway is a service connecting an on-premises software appliance with cloud-based storage. Once the AWS Storage Gateway’s software appliance is installed on a local host, you can mount Storage Gateway volumes to your on-premises application servers as iSCSI devices, enabling a wide variety of systems and applications to make use of them. Data written to these volumes is maintained on your on-premises storage hardware while being asynchronously backed up to AWS, where it is stored in Amazon Glacier or in Amazon S3 in the form of Amazon EBS snapshots. Snapshots are encrypted to make sure that customers do not have to worry about encrypting sensitive data themselves. When customers need to retrieve data, they can restore snapshots locally, or create Amazon EBS volumes from snapshots for use with applications running in Amazon EC2. It provides low-latency performance by maintaining frequently accessed data on-premises while securely storing all of your data encrypted. On the other hand, Borg is detailed as "A deduplicating backup program that optionally supports compression and authenticated encryption". It is a deduplicating backup program. It provides an efficient and secure way to backup data. The data deduplication technique used makes it suitable for daily backups since only changes are stored. The authenticated encryption technique makes it suitable for backups to not fully trusted targets.
AWS Storage Gateway and Borg belong to "Data Backup" category of the tech stack.
Some of the features offered by AWS Storage Gateway are:
- Gateway-Cached Volumes – Gateway-Cached volumes allow you to utilize Amazon S3 for your primary data, while retaining some portion of it locally in a cache for frequently accessed data.
- Gateway-Stored Volumes – Gateway-Stored volumes store your primary data locally, while asynchronously backing up that data to AWS.
- Data Snapshots – Gateway-Cached volumes and Gateway-Stored volumes provide the ability to create and store point-in-time snapshots of your storage volumes in Amazon S3.
On the other hand, Borg provides the following key features:
- Space efficient storage
- Data encryption