Ask the Expert

Real-time replication software

Randy,

I've been thinking about developing some software to enable real-time replication between heterogeneous NAS boxes. Meaning, when a "write" happens it could be replicated to another NAS box (perhaps not from the same vendor).

Do you see a market for such software? I'm wondering about the demand for such a product in the enterprise and or co-location vendors.


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There are some implementations that do this already using low-latency protocols such as VIA (virtual interface architecture - see Network Appliance white papers). Adding in third party software on a NAS device to do specialized functions may not be permitted and would be considered risky by many customers.

To do this, you would really need to approach a vendor with the idea and some proof of concept to get them interested. Otherwise, it may be an interesting exercise but probably not widely accepted.

Randy Kerns
Evaluator Group, Inc.

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This was first published in June 2002

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