Ext4 is the latest in a long line of Linux® file systems, and it's likely to be as important and popular as its predecessors. As a Linux system administrator, you should be aware of the advantages, disadvantages, and basic steps for migrating to ext4.
Read more »Migrating to ext4
http://www.ibm.com –
A better ext4 filesystem for Linux
http://www.linuxworld.com –
A new Linux filesystem gets rid of the 256-petabyte limit, and adds a checksum feature for the journal. But developers want you to know that it's not yet ready for production sytems.
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