Performance - AWS Storage Services Overview

Performance

Because the AWS Storage Gateway VM sits between your application, Amazon S3, and underlying on-premises storage, the performance you experience depends upon a number of factors. These factors include the speed and configuration of your underlying local disks, the network bandwidth between your iSCSI initiator and gateway VM, the amount of local storage allocated to the gateway VM, and the bandwidth between the gateway VM and Amazon S3. For gateway-cached volumes, to provide low-latency read access to your on-premises applications, it’s important that you provide enough local cache storage to store your recently accessed data. The AWS Storage Gateway documentation provides guidance on how to optimize your environment setup for best performance, including how to properly size your local storage.

AWS Storage Gateway efficiently uses your Internet bandwidth to speed up the upload of your on-premises application data to AWS. AWS Storage Gateway only uploads data that has changed, which minimizes the amount of data sent over the Internet. To further increase throughput and reduce your network costs, you can also use AWS Direct Connect to establish a dedicated network connection between your on-premises gateway and AWS.