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I was reading through the link on journaling-filesystems and i would like to know where exactly is the journal stored in my Harddisk.

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On ext3 and ext4 filesystems it's stored either in the journal inode (the default) or on a separate device, depending on the options passed to mke2fs.

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Could you please explain me where the journal inode is? –  Sen Nov 25 '10 at 9:32
    
Same place as all the other inodes: on your hard disk. –  Ignacio Vazquez-Abrams Nov 25 '10 at 9:40
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@Sen: data is stored on inodes. some inodes are made visible to the user via "names" (thats what you actually see). some inodes do not have a visible name. the journal inode is such an invisible one. –  akira Nov 25 '10 at 9:48
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