Using APFS on High Sierra: Challenges and Considerations

The adoption of Apple File System (APFS) on macOS High Sierra for Mac users comes with its own set of challenges, particularly regarding backup compatibility and the performance of third-party applications. This article explores these challenges and provides insights for Mac users considering the use of APFS.

Introduction to APFS

Apple File System (APFS) was introduced in macOS High Sierra as a modern replacement for the older HFS file system. It aims to provide better performance, security, and efficiency, but its implementation is not without issues. This article will delve into the challenges and benefits of using APFS on a Mac running macOS High Sierra.

Challenges with APFS

One of the primary challenges with APFS is its limited support and compatibility. As the system is still under development, it faces several hurdles that impact user experience:

1. Backup Hard Drive Compatibility Issues

Currently, APFS does not offer seamless backup solutions with all third-party backup utilities. Disk utilities like DiskWarrior, Drive Genius, and TechTool Pro, which are widely used for disk management and repair, cannot yet fully support APFS. For instance, TechTool Pro purports to provide support for APFS but fails to deliver as claimed. Users are advised to implement more than one backup strategy to ensure data safety, especially in the absence of guaranteed support from third-party tools.

Tip: Use at least two different methods for backing up your data. Additionally, a third off-site backup is highly recommended in case of local disasters such as fire or system failures.

2. Incompatibility with Third-Party Applications

Another challenge lies in the compatibility of 3rd party applications with APFS. Not all applications are optimized for this new file system, which can lead to conflicting behavior and potential issues. Users should exercise caution when upgrading to APFS, especially if a significant number of their applications rely on the older HFS file system.

Tip: Carefully evaluate the compatibility of your third-party applications with APFS before making the switch. Consider testing the applications in a non-production environment first.

Automatic Format Conversion

It's worth noting that the format conversion from HFS to APFS is automatic, unless you specify otherwise. For users with older Macs equipped with spinning HDDs, the automatic conversion can impact system performance until the process is complete. In such cases, it's advisable to proceed with the format conversion during a period when your system is not in heavy use.

Conclusion

While APFS offers significant advantages, including improved security, efficiency, and snapshots, its implementation on macOS High Sierra is still evolving. Users should remain vigilant regarding backup strategies and application compatibility. By being proactive, users can ensure a smooth transition to APFS and continue to enjoy the benefits of a modern file system.

Key Takeaways: APFS is not fully supported by third-party disk utilities and apps. Implement multiple backup strategies to ensure data safety. Evaluate application compatibility before switching to APFS.