On 04/21/2010 05:04 PM, robert mena wrote:
> I want to have more than one secondary node syncing with the primary one.

More than one Secondary for a single Primary: not supported in DRBD at
this time.

Redundancy across 3 nodes, supported by DRBD and Pacemaker via device
stacking:
http://www.drbd.org/users-guide/s-pacemaker-stacked-resources.html

Redundancy across 4 nodes in two 2-node Pacemaker clusters, also supported:
http://www.drbd.org/users-guide/s-pacemaker-stacked-resources.html#s-pacemaker-stacked-4way

Redundancy across 4 nodes in one 4-node Pacemaker cluster: fine with
DRBD, but currently not supported in Pacemaker due to this bug:
http://developerbugs.linux-foundation.org/show_bug.cgi?id=2169

Hope this helps.
Cheers,
Florian

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