S3 Storage Gateways Flashcards
What is the idea behind Amazon Storage Gateway?
Connecting an on-premises software app with cloud-based storage for smart storage (mixing cloud storage and on-premises storage).
What are the three types of Amazon Storage Gateways?
- File Gateway
- Volume Gateway
- Gateway Virtual Tape Library
How do data backups work in Amazon Storage Gateways?
- Data is backed up asynchronously to S3 in the form of EBS Snapshots
What does NFS stand for?
Network File System
How are files stored in Amazon File Gateway?
- Files are stored as S3 buckets
- Once objects are transferred to S3, they get managed as native S3 objects, and bucket policies apply directly to them.
How are files accessed in an Amazon File Gateway?
Files are accessed through an NFS mount point
What are the two types of Amazon Volume Gateways? In what key ways do they differ?
- Storage Volumes let you keep all of your data on premises (thus on-premise data is the primary storage)
- Cached Volumes let you keep your frequently accessed data on-premises (thus S3 is your primary data storage)
At a high level, what do Amazon Stored Volumes do?
- Store primary data locally, while asynchronously backing it up to AWS
What is the high-level benefit of Amazon Stored Volumes?
- On-premises applications get low latency access to their entire datasets.
- AND you get durable, off-site backups
At a high level, how do Amazon Cached Volumes work?
- Lets you use S3 as your primary data storage while retaining frequently accessed data in your storage gateway.
What is the high-level benefit of Amazon Cached Volumes?
It minimizes the need to scale on-premises storage
Suppose you are worried about your data storage capacity and need a “quick win” moving from on-premises to cloud. Which gateway volume solution is more appropriate? Why?
Cached Gateway, because you dont need to scale your current storage to use it
How can you bring a system that runs on tapes into Amazon S3?
Use amazon’s Virtual Tape Library (VTL)
