Which file system is primarily used in Linux server environments?

The file system primarily used in Linux server environments is Ext4. This file system is the fourth extended file system and is a successor to Ext3, providing several advantages and enhancements that make it suitable for a range of applications, including server environments. Ext4 supports large file sizes and large volumes, which is beneficial for servers that handle significant amounts of data.

Additionally, Ext4 features improved performance and reliability through its journaling capabilities, which help to prevent data corruption and improve recovery times after unexpected shutdowns. It also introduces features like extents (contiguous blocks of space) for efficient storage management and delayed allocation, which optimizes disk write performance.

Other file systems mentioned, such as NTFS and FAT32, are primarily used in Windows environments, while HFS+ is associated with Apple’s macOS. Thus, they do not match the requirements and optimization found in Linux systems, making Ext4 the preferred choice in that context.