Aws Elastic File System -1

AWS Elastic File System is a Network storage location that can be mounted across multiple compute instances to share the data across the applications.

An EBS volume is an Elastic Block Storage volume which is a hard disk for an Ec2 instances attached during the time of provisioning the instances. All the data written by the applications running on the Ec2 instances will be stored locally on the EBS volume only. when we deprevision the ec2 instances, automatically the EBS volume also will be destroyed. So all the data that is being stored on the ec2 instance will be lost.

From the above, we can understand all the data that is being stored on an ec2 instance will be kept local to the instance and accessible on that instance only

That is where Amazon AWS Cloud has provided EFS (Elastic File System) which is a network location that can be mounted across the EC2 instances. using EFS we can not only share the files across the ec2 instances, we can even transfer the files between EFS and On-premise servers as well.

EFS (Elastic File System)

Features:-

1. Scalable Performance

2. Scalable Storage

3. Secured and Complaint

4. Storage Options

EFS offers 2 types of storage classes for storing the file.

1) Standard:-

Most frequently accessed data will be placed in the standard storage class, and the data placed in the standard storage will be replicated across all the AZs of the region to reduce network latency and increase IOPS. the cost of storage is very high.

1.1 higher throughtput or scaled-performance (IOPS)

1.2 low -network latency

1.3 high availability

2) One-Zone:-

The EFS is provisioned only on one subnet of the VPC, recommended to store only the data that is very likely to be used. when using one-zone storage, the cost of storage comes down to 90% compared with the standard.

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