![]() With EFS, you can have hundreds or thousands of instances accessing the file system simultaneously. EBS volumes are limited to a single instance, and, more importantly, then can only be accessed by one instance at a time. While both EBS and EFS offer great features, these two storage solutions are actually built for two completely different uses. Keep in mind, however, that when retrieving data using this tier, you incur an additional cost ($0.01 per GB transferred). The cost of using the AWS EFS Infrequent Access tier storage is drastically lower-$0.025 per GB per month. EFS Standard tier storage costs $0.30 per GB per month. No infrastructure or application changes are needed on your end because EFS handles everything for you behind the curtain.Īs with most AWS services, EFS only charges customers for what they use. Using it only requires you to enable a lifecycle management which will move your data based on the desired policy. Now, in addition to offering Standard storage, EFS also offers Infrequent Access. This feature greatly expands the possible use cases for EFS.ĮFS has also received an update recently, gaining a new storage tier. For those running a hybrid cloud environment, AWS EFS can be used by on-premises instances as well. The use of EFS is not limited to the AWS cloud. Your applications and services need only attach the file system to be ready to go. One upside of using EFS is that your existing environment won’t require any changes. When used more heavily, however, AWS EFS can offer as much as 10 GB/sec along with 500,000 of IOPS. This is a somewhat strange choice, and, as a result, the performance of EFS can be a bit underwhelming for low utilization. When the size of the EFS’s file system scales, so does its performance. On the surface AWS EFS sounds like a simple service but there is a lot more to it when you dig a bit deeper. This means that the file system will actually go up or down in size as you add files to it or remove files from it. AWS EFS is a fully managed service that is automatically scalable. It was designed to work with Linux instances (and with support for both 4.0 and 4.1 Network File System (NFS) protocols), and it offers durable, highly available storage that can be utilized by thousands of servers at the same time. What is AWS EFS?Īmazon EFS is a storage service that provides a shared elastic file system with virtually unlimited scalability support. However, this means that they are limited to one AZ, so you can’t move a volume around unless you create a snapshot of it and recreate it elsewhere. $0.125/GB + an additional $0.065 per provisioned IOPSĮBS volumes are designed to be very durable, and they are replicated within the Availability Zone (AZ). You can also read more about AWS EBS: HDD vs SSD Cloud Block Storage and how they are priced here:Ī low-cost volume for frequently accessed and throughput intensive workloadsĪ cheap volume for less frequently accessed dataĪ volume designed for latency-sensitive transactional workloads Our block storage series introduces EBS block level storage and digs into the two main block storage categories: SSD-backed and HDD-backed volumes.Īt the moment, there are four volume types being offered by EBS. When they are mounted they can be used as any other block storage. Note that elastic block store volumes persist separately from EC2 instances and can be attached and detached at any time. It provides a high performance option for many use cases, and it can be used for various databases (both relational and non-relational), for a wide range of applications, and for big data analytics.ĮBS works by providing volumes, which are collections of small network attached blocks that you see as “disks.” Volumes come in different types, and whether you need the best possible performance and require a single-digit millisecond latency or you’re just looking for a high throughput, there is an EBS volume that meets your needs. What is AWS EBS?ĪWS EBS is a block storage service designed to be used exclusively with EC2 instances. Elastic File System (EFS), two extremely popular storage options, to see which one is best for which situations. We will compare Elastic Block Store (EBS) vs. This article will consider one very common example of this type of choice: making a decision about appropriate storage options. What was a proper choice in the past may not be the right one today. The ever-changing nature of the AWS cloud-which includes constant updates to existing services, as well as the introduction of new ones-can make choosing the right service challenging. ![]() Most of the time, there are multiple offerings available that meet your requirements. When working with the AWS cloud, you often find yourself asking which service should you use to meet a specific need.
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