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Re: [Xen-devel] Remus and blktap2


On Fri, Apr 22, 2016 at 06:07:46PM +0000, Shriram Rajagopalan wrote:
>    Blktap2 was the first disk backend implementation. I moved Remus to DRBD
>    because it had disk resynchronization support. For eg, when primary fails,
>    backup takes over. When primary comes back online, DRBD would
>    automatically resynchronize new changes from the backup disk to the
>    primary disk and will continue to keep them synchronized.
>    At this stage, you have the option of starting Remus replication from
>    backup to primary, or, migrating the VM back to the primary host and doing
>    the primary to backup replication.
>    The DRBD support (last I remember) is quite out of date, because the Remus
>    DRBD kernel module I wrote relies on an older kernel version (3.4?) and
>    older DRBD code base (8.1 I think).

Are there plans to get the Remus DRBD module upstreamed? Or working with recent 
DRBD versions? 


-- Pasi

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