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[News] A Look at ext4 and GFS in Linux

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Enter ext4, the filesystem of the future 

,----[ Quote ]
| iTWire: Fedora has started using ext4 as the default filesystem. What are 
| some of the pros and cons of such a decision? 
| 
| Chris Samuel: ext4 is a much bigger change from ext3 than ext3 was in turn 
| from ext2. Ext3 essentially just added journalling to ext2, whereas ext4 
| moves to an extent based filesystem with other features such as delayed 
| allocations (like XFS) to allow the allocator to be more intelligent about 
| how it lays things out on disk and much bigger filesystem sizes (though the 
| programs to create ext4 filesystems can't actually make them for you yet). 
| Another nice feature is the fact that the journal data is checksummed so the 
| filesystem can spot any corruption after a crash.       
`----

http://www.itwire.com/content/view/25866/1231/1/1/

Achieving Robust Clustered Storage with Linux and GFS

,----[ Quote ]
| Load balancing is difficult. We often we need to share file systems via NFS 
| or other mechanisms to provide a central location for the data. While you may 
| be protected against a Web server node failure, you are still sharing fate 
| with the central storage node.   
`----

http://www.enterprisestorageforum.com/sans/features/article.php/3824876


Recent:

The Ext4 Linux file system

,----[ Quote ]
| Ext3, the default Linux file system for many years, is definitely starting to
| show its age. Modern mass storage devices are approaching its limits and
| block-based data management is no longer adequate for modern file sizes. High
| time for an update!
`----

http://www.h-online.com/open/The-Ext4-Linux-file-system--/features/113403
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