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Amazon S3 vs EBS vs EFS

Amazon S3Amazon EBSAmazon EFS
Type of storageObject storageBlock level storage for EC2 instancesPOSIX-compliant file storage for EC2 instances
FeaturesAccessible 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 instanceLowest, consistent performance, designed for a single EC2 instanceFile system interface, file system access semantics, concurrently-accessible storage for multiple EC2 instances
Max Storage SizeVirtually unlimited16 TiB for one volumeUnlimited system size
Max File Size5 terabytesEquivalent to the maximum size of your volumes47.9 TiB for a single file
Performance (Latency)Low, for mixed request types, and integration with CloudFrontLowest, consistent; SSD-backed storages include the highest performance Provisioned OPS SSD and General Purpose SSD that balance price and performanceLow, consistent; use Max I/O mode for higher performance
Performance (Throughput)Multiple GBs per second; supports multi-part uploadUp to 2 GB per second. HDD-backed volumes include throughput intensive workloads and Cold HDD for less frequently accessed data10+ 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
DurabilityStored redundantly across multiple AZs; has 99.999999999% durabilityStored redundantly in a single AZStored redundantly across multiple AZs
AvailabilityS3 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
ScalabilityHighly scalableManually increase/decrease your memory size. Attach and detach additional volumes to and from your EC2 instance to scaleEFS file systems are elastic, and automatically grow and shrink as you add and remove files
Data AccessingOne to millions of connections over the web; S3 provides a REST web services interfaceSingle EC2 instance in a single AZOne to thousands of EC2 instances or on-premises servers, from multiple AZs, regions, VPCs, and accounts concurrently
Access ControlUses bucket policies and IAM user policies. Has Block Public Access settings to help manage public access to resourcesIAM Policies, Roles, and Security GroupsOnly 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 MethodsSupports 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 CMKsEncrypt data at rest and in transit. Data at rest encryption uses AWS KMS. Data in transit uses TLS
Backup and RestorationUse versioning or cross-region replicationAll EBS volume types offer durable snapshot capabilitiesEFS to EFS replication through third party tools or AWS DataSynch
PricingBilling prices are based on the