1Z0-1072-25 Question 253
Select 2You are implementing an HPC (High Performance Computing) environment in Oracle Cloud Infrastructure (OCI). You have created a File Storage file system for storing large datasets and configured a mount target in the same Virtual Cloud Network (VCN) as your compute instances. However, when you attempt to mount the file system from your Linux compute nodes using NFS, the mount operation fails. Which two actions should you take to resolve this issue?
- A
Use the SMB protocol instead of NFS on your compute instances to mount the file system.
- B
Configure security lists or network security groups to allow inbound and outbound traffic on the necessary NFS ports.
- C
Create and configure an appropriate export in the File Storage service that includes the subnet or IP address range of your compute instances.
- D
Enable cross-region replication to ensure the file system is accessible from any region.
- E
Move the mount target to a different availability domain to avoid potential AD-specific performance constraints.
Show answer and explanation
Correct answers: B, C
Explanation
In OCI File Storage, ensuring the right network security configurations (ports, security lists, or network security groups) and correctly defined exports are essential for successful NFS mounts. The official OCI documentation recommends verifying that the file system export allows the correct IP addresses or subnets and that the mount target� subnet security rules permit NFS-related traffic. Refer to the Oracle Cloud Infrastructure File Storage Service documentation for details on configuring exports and security lists for NFS access.
- A. Incorrect.
Option 1 is incorrect because OCI File Storage requires NFS (Network File System) for mounting, not SMB. SMB support is not provided by the OCI File Storage service.
- B. Correct.
Option 2 is correct because you must configure network security rules to allow NFS-related traffic (for example, ports 2049, 111) so that your compute instances can communicate with the File Storage mount target.
- C. Correct.
Option 3 is correct because you need an export rule in the File Storage service that includes the correct IP addresses or subnets corresponding to your compute instances. Without this, the mount request will be blocked by the exports configuration.
- D. Incorrect.
Option 4 is incorrect because cross-region replication is a feature used for disaster recovery or data redundancy, not a requirement to make the file system mountable within the same region.
- E. Incorrect.
Option 5 is incorrect because placing the mount target in a particular availability domain can be a best practice for latency or performance reasons, but it is not the key factor in solving a basic mount failure issue. Instances can still mount a file system cross-AD as long as network routes and security rules are configured correctly.