What is the primary difference between ext4 and ext3 file systems?

  • Ext4 supports larger file sizes and filesystems
  • Ext3 has better journaling capabilities
  • Ext4 has a faster file system check on boot
  • Ext3 offers improved data compression
The primary difference between ext4 and ext3 file systems is that Ext4 supports larger file sizes and filesystems. Ext4 extends the maximum file size from 16 terabytes to 1 exabyte and supports filesystems up to 1 exabyte, whereas Ext3 has limitations in this regard. This makes Ext4 more suitable for modern storage needs.
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