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As @Madunix said, DR is just part of a BUSINESS Continuity Plan, or how is the company going to survive a disaster? <br />
Eg being based on the Florida Atlantic coast with a 9ft storm surge on its way! It's not just a problem in your office - there might not be power or telecoms in the whole area for days! And all this needs to be factored in to your BC Plan.
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I would be more intersted in the basic template to follow a DR plan, if anyone have it please share
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Let me go through the above links in detail
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I have the production site with virtual servers (DC, ADC, Exchange 2016, Oracle R12, Storage and tape library in main site).<br />
Basically we are planning to have DR for DC, Exchange and Oracle servers. <br />
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Not done any DR setup before, hence i would like to know the steps to have a proper DR site, prerequisities and other requirements.
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I have the production site with virtual servers (DC, ADC, Exchange 2016, Oracle R12, Storage and tape library in main site).
Basically we are planning to have DR for DC, Exchange and Oracle servers. 

Not done any DR setup before, hence i would like to know the steps to have a proper DR site, prerequisities and other requirements.

DR Prerequisities and checklists

Disaster Recovery is the planning for and creation of policies and procedures related to the resumption or continuation of an organization's functions following a catastrophic event. The term is most frequently used in relation to failure of networks, but DR preparations also include other business systems and personnel considerations.