However, now that we are considering replication we are wondering if we have complicated things by needing to activate and manage two replication software packages (SRDF & MirrorView). Should we consider a DMX3 and tier within that array and have only one replication software, SRDF?
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The fact that your organization has already adopted a tiered storage model would imply that some level of data categorization has already taken place. The next question would then become, does everything need to be replicated on only the top tier? If only the top tier is to be replicated for DR, maybe a single replication tool (SRDF) is required. If all data must be replicated remotely to meet business recovery requirements, then maybe the different storage tiers were not required in the first place.
This was first published in February 2007