Block and File Storage Flashcards
What is Amazon FSx?
Fully managed third-party file system
It has two file systems to choose from:
Amazon FSx for Windows File Server for Windows based Applications
Amazon FSx for Lustre for compute-intensive workloads
Remember for exam questions:
- Integration with S3 is just possible with FSx for Lustre!!
- Supports Distributed File System Replication (DFSR) in Single-AZ
Amazon FSx for Windows file server supports DFS namespaces and DFS replication.
What is AWS Storage Gateway for?
- Is a Service that enables you to connect your on premise storage to AWS.
- On Premise you deploy either an File Gateway, an Volume Gateway or an Tape Gateway.
These are all virtual appliances (Devices) - You can deploy them on VMware, Hyper-V or KVM or hardware appliance
- Encryption in transit over AWS Direct Connect or Internet
File Gateway:
- File gateway provides a virtual on-premises file server
- Store and retrieve files as objects in Amazon S3
- Use with on-premises applications, and EC2-based applications that need file storage in S3 for object-based workloads
- File gateway offers SMB or NFS-based access to data in Amazon S3 with local caching
Volume Gateway:
- Block based Storage protocol using iSCSI
- We the following to modes:
- Cached volume mode
The entire dataset is stored on S3 and a cache of the most frequently accessed data is cached on-site
- Stored volume mode
the entire dataset is stored on-site and is asynchronously backed up to S3 (EBS point-in-time snapshots).
Snapshots are incremental and compressed.
Tape Gateway:
- Used for backup with popular backup software
- Each gateway is preconfigured with a media changer and tape drives.
Supported by Backup Exec, etc.
- All data transferred between the gateway and AWS storage is encrypted using SSL
- All data stored by tape gateway in S3 is encrypted server-side with Amazon S3 Manages Encryption Keys
What is the General Purpose SSD (gp2) volumes for?
General Purpose SSD (gp2) volumes offer cost-effective storage that is ideal for a broad range of workloads. These volumes deliver single-digit millisecond latencies and the ability to burst to 3,000 IOPS for extended periods of time.
Between a minimum of 100 IOPS (at 33.33 GiB and below) and a maximum of 16,000 IOPS (at 5,334 GiB and above), baseline performance scales linearly at 3 IOPS per GiB of volume size. AWS designs gp2 volumes to deliver their provisioned performance 99% of the time. A gp2 volume can range in size from 1 GiB to 16 TiB.
In this configuration the volume will provide a baseline performance of 750 IOPS but will always be able to burst to the required 3,000 IOPS during periods of increased traffic.
