File systems part II – ext3 and ext4

What are the differences between ext3 and ext4?
Journaling: Yes
Creation timestamps: No
Max file size: 16 GB – 2 TB
Max Volume size: 256 TB

Ext4 is an advanced and new version of ext3 witch various improvements.
Journaling: Yes
Creation timestamps: Yes
Max file size: 16 TB
Max Volume size: 1 EB

The main benefits that ext4 has over ext3 are:
– more reliable than ext3
– faster time stamping
– faster file system checking (FSCK)
– journaling checksums
– extents (automatic space allocation to avoid fragmentation)

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