FAT32 vs VFAT: Key Differences in File System Design

FAT32 and VFAT are various old file system designs that were created by Microsoft. Sure, both these systems have some similarities, but there are some major differences as well. Here, in the article, we will discuss the major limitations and features of these file systems so you will have a better understanding of them.

Overview of the FAT File System

The initial version of FAT was created in 1977, and it was needed for the usage by Windows OS and MS-DOS. Since the development of this system, it has been adopted in various OSs. Also, this file system has 4 versions, such as FAT12, FAT64, FAT32, and FAT16.

Every new version that was created tried to fix some issues of the previous one, and it was successfully achieved. The major noticeable factor was the increase is cluster size in every new version, and that directly impacted the increase in the threshold of system size.

There might be some questions regarding VFAT specifically in the Linux system, so let’s try to find out more about it.

Understanding FAT32

File Allocation Table 32 is a system that was created for the management and organization of files on devices such as SD cards, hard drives, and USBs. This version has been developed as the next step after the appearance of versions 12 and 16 to increase storage capacity.

This version was released in 1996 together with Windows 95 and immediately became extremely popular due to its simplicity and broader compatibility. The major features of this version are:

• Support for the disk partitions up to 2 TB.
• It is based on the usage of way smaller clusters when compared with the previous version, and that tremendously impacts the minimization of the wasted space in the storage. The usage of smaller clusters means that there is less unused space.
• Compatibility with a huge variety of OSs, including Linux, Windows, macOS, and others.

This specific file system is really popular because of its efficiency, compatibility, and simplicity, but like any system, it also has some limitations. Here are some of them:

• This approach of storing information can be really fragmented. This means a specific file is divided into parts, and that can slow down the access time. Moreover, it can impact general performance characteristics in the long run.
• There is a limitation of 4GB when talking about the size of the file. An individual file cannot exceed this size, and that can be a huge problem for the storage of large apps or video materials.
• There are no modern features such as encryption, compression of files, and access permissions.

What Is VFAT and How It Works

VFAT is an extension of the usual FAT, which was designed in Windows 95. The initial reason for its creation was to provide support for long file names, and that was a huge improvement compared with the earlier version of the file system.

Here are some major features of VFAT:

• Increase in the file names to 255 characters, which was a huge thing compared with formats in FAT16 and 12.
• Usage of the LFN technology is needed for the storage of additional characters of the names, while at the same time keeping up with the traditional 8.3 format.
• Has compatibility with older FAT systems. This means that all the standards of the previous formats stay the same, but you get some additional bonuses.

When speaking about some limitations of VFAT, they are:

• Because VFAT is an extension, but not an individual file system, it includes some standard limitations, such as inefficiency because of the cluster size and max volume size.
• With the appearance of some modern file systems that have better security, high-performance standards, and more features, this extension has become rarely used. Among the more popular options, we can specify exFAT and NTFS.

Key Differences Between FAT32 and VFAT

Now, when you have a general understanding of 2 file systems, let’s try to understand the major difference between FAT32 and VFAT. Depending on the system compatibility, in Ubuntu partition type can be shown as VFAT and in Windows as FAT32. Let’s explore why it is happening.

Both these file systems have high compatibility with a huge variety of devices and OSs. VFAT is compatible with any version of FAT, so it is possible to use VFAT-16, 12, or 32. Whereas FAT32 has much wider compatibility with newer systems and devices, which makes it a more versatile option.

So, in the case we discussed earlier, VFAT and FAT32 are almost identical, and it doesn’t matter which one is shown in your operating system.

Besides the compatibility, there are also some other factors that should be known about. They are:

• Support for the file names. VFAT has support for longer names up to 255 characters, while FAT32 stays at the 8.3 format. The winner in terms of naming the files is obvious.
• Size and volume. VFAT supports volumes up to 2 GB, whereas FAT32 up to 2 TB. Despite the obvious difference in volumes, these systems have identical file size limitations of 4GB.
• Usage cases. VFAT is mainly used in legacy systems, and FAT32 is more appropriate for removable devices such as SD cards or USBs and in multi-OS environments.

Conclusion

Both VFAT and FAT32 are important in the evolution of the FAT systems and are used and have been used a lot. Every system has specific pluses and minuses, and we have mentioned the major ones in the article. Hope this information will be helpful.