AWS-EBS

• Storage Type - Block Storage, Limited storage, Increase / Decrease size manually.

• Types - General Purpose (SSD), Provisioned IOPS (SSD), Magnetic.

• Performance - Manually scale the size of the volumes without stopping instance. Baseline performance of 3 IOPS per GB for General Purpose volume. Use Provisioned IOPS for increased performance

• Data Stored- Data stored stays in the same Availability zone. Replicas are made within the AZ for higher durability

• Data Access - Can only be accessed by a single Amazon EC2 instance

• File System - Supports various file systems, including ext3 and ext4

• Encryption - Uses an AWS KMS–Managed Customer Master Key (CMK) and AES 256-bit Encryption standards

• Availability - 99.99% available

• Durability- 20 times more reliable than normal hard disks

• Availability Zone Failure - Cannot withstand AZ failure without point-in time EBS Snapshots

• Storage Size - Maximum storage size of 16 TB

• File Size Limitation - No limitation on file size in EBS disk

• Data Throughput and I/O - SSD- and HDD-backed storage types. Use of SSD backed and Provisioned IOPS is recommended for dedicated IO operations as needed.

• Faster than S3 and EFS.

• Automatic back up and snapshot.

• Accessible only via attached EC2 instance.

• File system interface.

When to use :

• Throughput scale - When performance need Single GB per sec.

• Data availability - stored redundatity in a single AZ.

• Single EC2 instance.

• Boot volumes, transactional, NoSql database, data warehouse & ETL

Benefits

• Reliable and secure storage − Each of the EBS volume will automatically respond to its Availability Zone to protect from component failure.

• Secure − Amazon’s flexible access control policies allows to specify who can access which EBS volumes. Access control plus encryption offers a strong defense-in-depth security strategy for data.

• Higher performance − Amazon EBS uses SSD technology to deliver data results with consistent I/O performance of application.

• Easy data backup − Data backup can be saved by taking point-in-time snapshots of Amazon EBS volumes.