On 10/9/2014 8:19 PM, Micky wrote:
Most people forget that DRDB is a 'clustered' storage that creates a new
block device on top of existing block devices, over the network.
There are issues like SPLIT BRAIN and a possible data inconsistency, should
there be multiple network timeouts, congestions (since it is all network
based) etc. This may not be the best solution for your problem!
those are potential issues with ANY high availability clustering
solution that need to be carefully engineered around. HA clusters
commonly use fencing technology to prevent split brain, dedicated
network adapters just for replication, and redundant connections for
status monitoring, etc.
--
john r pierce 37N 122W
somewhere on the middle of the left coast
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