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Ext3 Filesystem Explained

Posted by michael on from the journaling-for-fun-and-profit dept.

sheckard writes: "The next installment of the wonderful Advanced filesystem implementor's guide, part 7, details the ext3 filesystem in all of its glory. This is another great voyage into the world of journaling filesystems, and ext3 has been rock-solid in my experience."

3 of 174 comments (clear)

  1. Distro battles? Nah. Journaling fs battles! by Deal-a-Neil · · Score: 5, Informative

    ext3 catches my fancy because there's no ext2 --> ext3 conversion -- you just have to unmount, make a journal file, and remount. reiserfs migration is a challenge for the huge partitions.

  2. Re:Partition resizing? by Sapien__ · · Score: 5, Informative
    This thread might be useful.

    To summarize: yes, it's possible to resize ext3 partitions, so long as your resizer doesn't mind. Don't use Partition Magic to do it. It doesn't like it. Badly.

  3. Re:The journalling filesystem myth by cowbutt · · Score: 5, Informative
    Let's say the journaling file system has 5% overhead (it probably has more). That means you lose more than 1h per day on a busy server--it's spread out, but it's still lost. You'd have to do a lot of rebooting in order to make up for that in terms of "saved" fsck time.

    Actually, Andrew Morton reckons ext3 is actually quicker than ext2 in spite of the journalling. Go figure. :)

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