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Amazon S3 vs EBS vs EFS

	Amazon S3	Amazon EBS	Amazon EFS
Type of storage	Object storage	Block level storage for EC2 instances	POSIX-compliant file storage for EC2 instances
Features	Accessible to anyone or any service with the right permissions, delivers performance for workloads that require the lowest-latency access to data from a single EC2 instance	Lowest, consistent performance, designed for a single EC2 instance	File system interface, file system access semantics, concurrently-accessible storage for multiple EC2 instances
Max Storage Size	Virtually unlimited	16 TiB for one volume	Unlimited system size
Max File Size	5 terabytes	Equivalent to the maximum size of your volumes	47.9 TiB for a single file
Performance (Latency)	Low, for mixed request types, and integration with CloudFront	Lowest, consistent; SSD-backed storages include the highest performance Provisioned OPS SSD and General Purpose SSD that balance price and performance	Low, consistent; use Max I/O mode for higher performance
Performance (Throughput)	Multiple GBs per second; supports multi-part upload	Up to 2 GB per second. HDD-backed volumes include throughput intensive workloads and Cold HDD for less frequently accessed data	10+ GB per second. Bursting Throughput mode scales with the scales with the size of the file system. Provisioned throughput mode offers higher dedicated throughput than bustring throughput
Durability	Stored redundantly across multiple AZs; has 99.999999999% durability	Stored redundantly in a single AZ	Stored redundantly across multiple AZs
Availability	S3 Standard – 99.99% availability S3 Standard-IA – 99.9% availability S3 One Zone-IA – 99.5% availability S3 Intelligent Tiering – 99.9%	Has 99.999% availability and 99.9% SLA. Runs in multi – AZ
Scalability	Highly scalable	Manually increase/decrease your memory size. Attach and detach additional volumes to and from your EC2 instance to scale	EFS file systems are elastic, and automatically grow and shrink as you add and remove files
Data Accessing	One to millions of connections over the web; S3 provides a REST web services interface	Single EC2 instance in a single AZ	One to thousands of EC2 instances or on-premises servers, from multiple AZs, regions, VPCs, and accounts concurrently
Access Control	Uses bucket policies and IAM user policies. Has Block Public Access settings to help manage public access to resources	IAM Policies, Roles, and Security Groups	Only resources that can access endpoints in your VPC, called a mount target, can access your file system; POSIX-compliant user and group-level permissions
Encryption Methods	Supports SSL endpoints using the HTTPS protocol, Client-Side and Server-Side Encryption (SSE-S3, SSE-C, SSE – KMS)	Encrypts both data-at-rest and data-in-transit through EBS encryption that uses AWS KMS CMKs	Encrypt data at rest and in transit. Data at rest encryption uses AWS KMS. Data in transit uses TLS
Backup and Restoration	Use versioning or cross-region replication	All EBS volume types offer durable snapshot capabilities	EFS to EFS replication through third party tools or AWS DataSynch
Pricing	Billing prices are based on the