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The Ext4 Linux file system

May 29, 2009, 17:04 (0 Talkback[s])
(Other stories by DR. Oliver Diedrich)

"Because this involved changing the structure of the data stored on the disk, the programmers decided that rather than introducing these patches into Ext3, it was time to create a new version of the file system -- Ext4 -- based on the Ext3 code.

"The result of three years of Ext4 development has been significant advances from Ext3 which increase the volume limit to 1024 PB. This should be sufficient for many years to come. Extents, long implemented in other file systems such as XFS, should improve the efficiency of managing large files. There are also a whole range of under-the-bonnet changes intended to improve Ext4 performance compared to Ext3."

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