Ext2 is the first version of the filesystem created in 1993. It is stable and secure and can support volumes up to 4 TB. It doesn't have any form of journaling. It can be used for partitions that doesn't require journaling functions like boot partitions.
Ext3 is more secure and consistent compared to ext2. It has a journaling function that doesn't require a lot of disks access. It is quite slow compared to ext4. It can be used with file with high-variable dimension and server-files.
Ext4 have high performances compared to its predecessors. It uses RAM to optimize read/write operations limiting access time. It is suggested for desktop use but not so recommended for servers (considering its young age).
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Ext2 是 1993 年创建的文件系统的第一个版本。它稳定且安全，可支持高达 4 TB 的卷。它没有任何形式的日记。它可用于不需要日志功能的分区，例如引导分区。
与 ext2 相比，Ext3 更安全、更一致。它具有不需要大量磁盘访问的日志功能。与 ext4 相比，它相当慢。它可以与高可变维度的文件和服务器文件一起使用。
Ext4 与其前身相比具有高性能。它使用 RAM 来优化限制访问时间的读/写操作。建议用于桌面，但不建议用于服务器（考虑到它还很年轻）。
Ext2 is the first version of the filesystem created in 1993. It is stable and secure and can support volumes up to 4 TB. It doesn't have any form of journaling. It can be used for partitions that doesn't require journaling functions like boot partitions.
Ext3 is more secure and consistent compared to ext2. It has a journaling function that doesn't require a lot of disks access. It is quite slow compared to ext4. It can be used with file with high-variable dimension and server-files.
Ext4 have high performances compared to its predecessors. It uses RAM to optimize read/write operations limiting access time. It is suggested for desktop use but not so recommended for servers (considering its young age).