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    SubjectRe: [RFC][PATCH] nbd driver for 2.5.72

    On Sat, 21 Jun 2003, Bernd Eckenfels wrote:

    > Is anybody aware of a journalling nbd, which keeps track of unsynced
    > changes, so a fast reintegration is possible?
    > Well perhaps this is a property of the md device, instead... hmm. Is there
    > such a function available? Could be some left over from snapshot code.

    Assuming that you use raid1 over nbd, you could try Peter T Breuer's patches
    for raid1 (called fr1) that allow the use of a bitmap for resyncing. I am
    also currently working on expanding on his patches to make the bitmap
    persistent (stored in a file) and to allow asynchronous writing to the
    "backup" (in this case, nbd) device.

    Stay tuned...more details on linux-raid about this...


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