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Hi Owen, Owen Davies wrote: I'm not sure of the implications of Luster using ZFS DMU. Does this mean a subset of ZFS functionality, binary compatibility of written disks or what? It means Lustre will be using ZFS (instead of ext4/ldiskfs) as its disk storage backend in metadata and objects servers. See this page for more information: http://arch.lustre.org/index.php?title=Feature_Lustre_ZFS One of the goals is to maintain compatibility with the existing ZFS on-disk format (ZPL format). The main reason for that goal is to provide the ability to bring down a Lustre server and be able to mount it with ZFS in case something goes wrong. I also suggest that it would be more helpful to discuss Lustre in the lustre-discuss mailing list, where many folks with Lustre knowledge hang around: http://wiki.lustre.org/index.php?title=Mailing_Lists Hope that helps, Ricardo --
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