We are in the process of adding a new Data Center which will be geographically located about 60 miles from our existing Data Center, the solution I'm proposing for continuous SAN access and replication is deploying a DWDM solution (Ciena or Cisco) to be able to extend native Fiber Channel to the new Data Center which will provide for an easier and staged migration. My only concern is latency over DWDM for FC since the distance is about 60 miles, does anyone have a real life experience or have been through this type of deployment and can provide me with some feedback, advice, "what to look for" etc, will the distance be an issue using DWDM? I appreciate your responses, thank you.
Re: Extending SAN - Native FC over DWDM Experiences
I dont think any other solution can be faster than SAN over DWDM. As they go over DWDM when distance go over certain distance. Like SFP in switches can go only 70Km i.e 43 miles. Over that distance they either need a telco or DWDM solution
See this link for a SAN experiment is done over 465Km. It will give you some more pointers to look for.
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