EFS
Learn about the Elastic File System service.
The Elastic File System
Elastic File System (EFS) is a network-attached file system that can span multiple AZs in a single AWS Region. As the name suggests, EFS is highly elastic and scalable. There’s no need to provision, maintain, or patch the file system hardware. EFS is serverless. We define its configuration and create the file system.
Features of EFS
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An EFS can be attached to multiple EC2 instances in different AZs. When we create an EFS, we can choose the AZs that it has to span. Once created, we can connect EC2 instances in these AZs to the EFS.
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It’s serverless. EFS can seamlessly grow to a petabyte-scale file system. It automatically grows and shrinks as files are added and removed from the file system. We only pay for the storage we use.
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It has burst capacity to allow it to achieve higher throughput levels when needed.
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It has its own security group to control access to the file system.
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It’s POSIX-compliant.
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It uses the NFS 4.1 protocol.
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It can support thousands of connections at a time and a throughput of over ten GiB/s.
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It can be encrypted using KMS keys.
EFS storage classes
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EFS Standard is designed for frequently ...