![]() Some Windows applications might not work on EFS or be feature-complete without access to a native Windows SMB file share. ![]() Windows has long provided an NFS client and server. FSx, the key attribute of the former is that it uses NFS, one of the first network file sharing protocols native to Unix and Linux. But since the Lustre file system is designed for high-performance computing workloads that typically run on compute clusters, users tend to know when they need it and when they don't.Įditor's note: For the purposes of this article and the comparison to EFS, all other references to FSx will pertain to the Windows variant. ![]() When AWS rolled out FSx for Windows, it also added FSx for Lustre. It's also deployed on redundant infrastructure and takes daily Volume Shadow Copy Service ( VSS) snapshots that are stored on S3. Its resilient design automatically replicates data within an AZ. AWS manages, monitors and patches FSx infrastructure. It is conceptually analogous to Amazon Relational Database Service.īecause FSx runs on Windows, it is compatible with any server application designed for on-premises Windows Server environments. FSx for Windows, on the other hand, is a managed Windows Server that runs Windows Server Message Block (SMB)-based file services. File systems are distributed across availability zones (AZs) to eliminate I/O bottlenecks and improve data durability. Amazon FSx basics and differences from EFSĪmazon EFS is a managed NAS filer for EC2 instances based on Network File System (NFS) version 4. That may or may not be the case, but our goal here is to sort out the confusion and provide guidance on the usage scenarios for each AWS file service. In fact, when AWS rolled out FSx late last year, some industry observers thought it was positioned to eventually replace EFS in the AWS portfolio. Given that Windows servers are often deployed for file sharing, FSx for Windows seems to overlap rather significantly with Amazon Elastic File System ( EFS), the managed network-attached storage (NAS) service. Amazon FSx for Windows File Server is the latest example of the challenges that come with so many choices.
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