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May 6th, 2010 16:00
Replication Manager Design Question
Hi,
We are deploying MS SQL clusters with CX4 storage at multiple locations across the world. Replication Manager will be used to manage snapview clone/snap at all sites.
Which approach is better :
1. Install Replication Manager "Server" at each site along with sql agents and mount hosts.
VS
2. Install Replication Manager "Server" at headqaurters & only install sql agents and mount hosts at remote sites.
PS: I would prefer the second approach, but I am not sure if there are any latency considerations that need to be accounted for ( from my experience with ECC which decidedly is not recomended to be installed in such a distributed manner).
Thanks!
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AranH1
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May 7th, 2010 11:00
As long as the RM server can communicate over IP to all the arrays, production hosts, and mount hosts you should be fine with option 2. The RM server just uses IP communication to manage the CLARiiON replications so it does not need to be masked to the array.
The only danger of this configuration is if you have slow links with high latency you may get some failed jobs if the communication is not successful. You could always deploy the solution with option 2 first though and if it doesn't work out install RM servers in the sites that don't have good connectivity to HQ. This way you don't have to purchase all the RM server licenses up front.