Professional Cloud ArchitectDesign and plan a cloud solution architectureMedium
A financial institution is migrating its legacy mainframe applications to Google Cloud. These applications rely heavily on shared file systems for transactional data and require high throughput and low latency. The company also needs to ensure data replication for high availability within a region. Which Google Cloud storage solution meets these requirements?
- AFilestore Enterprise
- BCloud Storage Multi-Regional
- CCloud SQL with a large instance
- DPersistent Disk with regional replication
Show answer & explanationAnswer & explanation
Correct answer: A. Filestore Enterprise
Filestore Enterprise is a fully managed, highly available, and performant file storage service that supports NFSv3/NFSv4.1, making it ideal for migrating legacy applications that depend on shared file systems. Its Enterprise tier specifically offers regional replication and high performance for critical workloads.
Why the other options are wrong
- B. Cloud Storage is object storage, not a shared file system, and is not suitable for applications requiring POSIX compliance or traditional file access.
- C. Cloud SQL is a relational database service, not a shared file system for application data.
- D. Persistent Disk is block storage attached to a single VM (or replicated for DR, but not a shared file system accessible by multiple VMs concurrently for transactional data in the way NFS is).
Filestore Enterprise
A fully managed, highly available, and performant Network File System (NFS) service on Google Cloud, offering regional replication and enterprise-grade features for critical workloads.
- Managed NFS file storage (NFSv3, NFSv4.1)
- High throughput and low latency
- Regional replication for high availability
- Suitable for enterprise applications, including legacy migrations
Memory trick: Filestore Enterprise: Legacy Files Get a Cloud Upgrade.