ExpertHard1 markMultiple Choice
GCP PCA · Question 25 · Domain 2: Managing and Provisioning a Solution Infrastructure
You are migrating an on-premises application to GKE. The application requires a persistent file system that can be read and written to by multiple pods simultaneously across different nodes. Which storage solution should you provision?
You are migrating an on-premises application to GKE. The application requires a persistent file system that can be read and written to by multiple pods simultaneously across different nodes. Which storage solution should you provision?
Answer options:
A.
Persistent Disk (ReadWriteOnce)
B.
Regional Persistent Disk
C.
Filestore
D.
Cloud Storage with Cloud Storage FUSE
How to approach this question
Identify the requirement for 'ReadWriteMany' (RWX) in Kubernetes. NFS is the standard solution.
Full Answer
C.Filestore✓ Correct
In Kubernetes, when multiple pods across different nodes need to read and write to the same volume simultaneously, the volume must support the `ReadWriteMany` (RWX) access mode. Google Cloud Persistent Disks only support `ReadWriteOnce` (or ReadOnlyMany). Filestore (managed NFS) is the correct solution for RWX workloads on GKE.
Common mistakes
Assuming Persistent Disk can be mounted by multiple writers (A). It cannot.
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