One Zone storage classes store data redundantly within a single AZ. Standard storage classes store data with and across multiple AZs. What storage classes does Amazon EFS offer?Īmazon EFS offers you the choice of creating file systems using Standard or One Zone storage classes. For bursting throughput mode file systems, monitor the BurstCreditBalance metric and alert on a balance approaching zero to operate your file system at its burst rate. If these values are equal, you’re consuming your entire amount of throughput, and should consider configuring provisioned throughput or increasing the amount of throughput configured. If you use custom CloudWatch dashboards or another monitoring tool, you can also create a CloudWatch metric math expression that compares MeteredIOBytes to PermittedThroughput. With the Amazon EFS console, you can use the Percent Throughput Limit graph to monitor your throughput use. PermittedThroughput and MeteredIOBytes reflect your metered throughput limit and usage, respectively, after metering read requests at a 1:3 ratio to other requests. You can monitor your throughput using Amazon CloudWatch. The TotalIOBytes, ReadIOBytes, WriteIOBytes, and MetadataIOBytes metrics reflect the actual throughput your applications are driving. Q: How do I monitor my read and write throughput usage? Please see the documentation on File System Performance for more information. The amount of throughput you can deliver depends on the throughput mode you choose. Provisioned throughput is designed to offer the highest levels of throughput consistency while providing a predictable billing experience. Use Provisioned Throughput if you know your workload’s peak throughput requirements and you expect your workload to consume a higher share (more than 5% on average) of your application’s peak throughput capacity. With Elastic Throughput, throughput performance automatically scales with your workload activity, and you only pay for the throughput you use. Use Elastic Throughput if you’re unsure of your application’s peak throughput needs or if your application is very spiky, with low baseline activity (such that it uses less than 5% of capacity on average when you provision for peak needs). What throughput modes are available for my file system?īy default, Amazon EFS file systems are built to provide throughput that scales with the amount of storage in your file system and supports bursting to higher levels for up to 12 hours a day.įor throughput-intensive workloads, EFS offers two options for delivering higher levels of performance independent of your file system storage: Elastic Throughput and Provisioned Throughput. With Amazon EFS, there is no minimum fee or setup costs, and you pay only for what you use. Amazon EFS is designed to be highly durable and highly available. Tens, hundreds, or even thousands of compute instances can access an Amazon EFS file system at the same time, and Amazon EFS provides consistent performance to each compute instance. They also support full file system access semantics, such as strong consistency and file locking.Īmazon EFS file systems can automatically scale from gigabytes to petabytes of data without needing to provision storage. With a few selections in the AWS Management Console, you can create file systems that are accessible to Amazon Elastic Compute Cloud (EC2) instances, Amazon container services ( Amazon Elastic Container Service, Amazon Elastic Kubernetes Service, and AWS Fargate ), and AWS Lambda functions through a file system interface (using standard operating system file I/O APIs). Amazon Elastic File System (EFS) is designed to provide serverless, fully elastic file storage that lets you share file data without provisioning or managing storage capacity and performance.
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