AWS Certified Solutions Architect Professional SAP-C02 Practice Question
A financial services company is re-architecting a legacy application for AWS. The application consists of both Windows and Linux servers that require concurrent, low-latency access to a shared data repository. The Windows servers use the SMB protocol, while the Linux servers use the NFS protocol. A critical requirement is to have a single, unified storage solution that provides simultaneous multi-protocol access to the same dataset. Additionally, the solution must support efficient, block-level, incremental replication to a different AWS Region for disaster-recovery (DR) purposes. The company wants a fully managed AWS service to minimize operational overhead. Which solution should a solutions architect recommend?
Use Amazon FSx for OpenZFS. Mount the same NFS exports from both Windows and Linux servers.
Use Amazon FSx for Windows File Server. Configure Linux servers to access the same SMB share via the SMB protocol.
Use Amazon FSx for Windows File Server for the SMB clients and Amazon EFS for the NFS clients. Configure AWS DataSync to perform ongoing replication between the two file systems.
Use Amazon FSx for NetApp ONTAP. Configure a single volume with multi-protocol access for both SMB and NFS clients and use SnapMirror for cross-Region replication.
Amazon FSx for NetApp ONTAP is the only fully-managed AWS file-storage service that natively delivers concurrent SMB and NFS access to the same data. FSx for ONTAP's multiprotocol feature lets Windows hosts connect over SMB while Linux hosts mount the identical volume over NFS, meeting the application's requirement for a single data repository .
FSx for ONTAP also includes NetApp SnapMirror, which performs block-level, incremental-forever replication to another FSx for ONTAP file system-including across AWS Regions-with recovery-point objectives as low as 5 minutes . This satisfies the cross-Region DR requirement without third-party tools.
Why the other options are not suitable:
Using FSx for Windows File Server plus Amazon EFS with AWS DataSync creates two independent file systems. DataSync copies occur on a schedule, so the data isn't truly shared in real time and consistency windows remain-violating the "single, unified repository" requirement.
FSx for OpenZFS exposes storage only through NFS (and optional S3 access points). Windows servers could mount it via NFS, but SMB access is unavailable, so the multi-protocol requirement is unmet .
FSx for Windows File Server with Linux clients using SMB gives all hosts SMB access, but Linux clients would no longer use NFS. More importantly, Windows FSx lacks a native block-level cross-Region replication feature comparable to SnapMirror, so the DR requirement still fails.
Therefore, Amazon FSx for NetApp ONTAP with a multiprotocol volume and SnapMirror replication is the optimal-and only fully managed-choice.
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