What are the differences between cached and stored modes in Volume Gateway?

1. Volume Gateway (Stored mode) : Data is stored locally i.e., on-prem and a backup is copied to AWS.

2. Volume Gateway (Cached mode): data is stored in AWS (S3) and frequently accessed data are cached locally.

What are the main types of storage interfaces in AWS Storage Gateway?

1. Volume Gateway (Stored mode)
2. Volume Gateway (Cached mode)

Why would I choose cached mode over stored mode for my setup?

If you want to minimize on-prem storage but need fast access to frequently used data then you can choose cached mode over stored mode.
In the cached mode the primary data is located in AWS (S3) and the frequently accessed data us available in local cache.

Which gateway mode stores the entire dataset on-premises while asynchronously backing it up to AWS?

In storage gateway, Does file gateway has cached and stored mode?