Continuous Availability For Your Company Networks
This silo based methodology practically always results in the use of several different availability / DR technologies from various vendors, with considerably different designs, capabilities and limited/no integration points. For example, an online web ordering system may make use of network load balancing for front end web servers, some form of data mirroring or clustering for backend database servers, and a 3rd party availability alternative for middleware. Point of sale solutions, CRM tools, and even BlackBerry messaging environments implement a similar prescription, utilizing completely different technologies for each layer in the application stack.
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Continuous Availability For Your Company Networks