El nuevo sistema de archivos de Dragon Fly, Hammer está cerca de tener su primer release candidate. Este nuevo sistema tipo journal intenta obtener la máxima velocidad, transacciones asíncronas y el mínimo de replicaciones, es un FS ideal para clusters.

Mathew Dillon desarrollador de DragonFly explica las ventajas de Hammer:

    HAMMER's approach to redundancy is logical replication of the entire
    filesystem.  That is, wholely independant copies operating on different
    machines in different locations.

    Ultimately HAMMER's mirroring features will be used to further our
    clustering goals.  The major goal of this project is transparent
    clustering and a major requirement for that is to have a multi-master
    replicated environment.  That is the role HAMMER will eventually fill.
    We wont have multi-master in 2.0, but there's a good chance we will
    have it by the end of next year.

Acá hay un tutorial para instalar DragonFly.

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http://www.mononeurona.org/news/display/1734

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