Re: Networking guidelines for RHCS across datacenters

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On Wed, Jun 3, 2009 at 6:36 AM, Jon Schulz
<jschulz@xxxxxxxxxxxxxxxxxxxxx> wrote:
> I'm in the process of doing a concept review with the redhat cluster suite.
> I've been given a requirement that cluster nodes are able to be located in
> geographically separated data centers. I realize that this is not an ideal
> scenario due to latency issues.

For most purposes, RHCS would require that all nodes have access to
the same storage/disk. That pretty much ruled out the DR  feature that
one might expect to get from having nodes in geographically separated
data centers.

I'd suggest you refine your requirements. Perhaps what you need is
something like MySQL cluster replication, where there are two
geographically separated data centers, each having its own cluster,
and the two clusters replicate each other's data asynchronously.

-- 
Fajar

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