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Thread: why to go with cLVM ?

  1. why to go with cLVM ?

    if I have a cluster with either:
    1 - dual primary drbd setup with cluster-aware file system(ocfs2) or
    2 - shared storage with cluster-aware file system(ocfs2)

    then why I do need the cLVM ? ordinary LVM does not work ?

  2. Re: why to go with cLVM ?

    Hi sharfuddin,
    Quote Originally Posted by sharfuddin View Post
    if I have a cluster with either:
    1 - dual primary drbd setup with cluster-aware file system(ocfs2) or
    2 - shared storage with cluster-aware file system(ocfs2)

    then why I do need the cLVM ? ordinary LVM does not work ?
    changing the LVM layout from one of the cluster nodes will not be noticed by the other nodes, until a reboot.

    If you can live with that (i.e. because you use a single OCFS2 partition on the shared media, and won't change the partitioning), no cLVM is needed.

    Regards,
    Jens
    From the times when today's "old school" was "new school"

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  3. Re: why to go with cLVM ?

    >changing the LVM layout from one of the cluster nodes will not be noticed by the other nodes, until a reboot.
    >
    I get "changing the LVM layout" as modifying the size of VG/LV ? did I get you properly ?

    >If you can live with that (i.e. because you use a single OCFS2 partition on the shared media, and won't change the partitioning), no cLVM is needed.
    >
    Got it ;-).

    Thanks a lot, you helped me.

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