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DR Prerequisities and checklists

Posted on 2016-10-05
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Last Modified: 2016-11-08
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.
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Question by:kurajesh
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by:madunix
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DRP should be created based on appropriate Risk Assessment; DRP is the technological aspect of business continuity planning (BCP). The selection of an appropriate strategy based on the BIA and criticality analysis is the next step for developing DRP. The two metrics that help in determining the recovery strategies are the RPO and RTO.

DRP should be tested regularly because environments continually change; at least annually

You should take a look at the international standard for BCM:  ISO 22301,  for development DRP/BCP document, also you could check ISACA for more info.

https://www.experts-exchange.com/questions/26927977/DR-site-best-practices.html
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by:Gerald Connolly
ID: 41834430
As @Madunix said, DR is just part of a BUSINESS Continuity Plan, or how is the company going to survive a disaster?
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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by:kurajesh
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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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by:madunix
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I would suggest that you include three essential areas in your document:
(1) network configuration;
(2) current operations procedures
(3) offsite data storage.
(4) third party services/software

Make sure: Disaster recovery costs, options, and disaster declaration procedures understandable..; you have a sufficient budget to support your disaster recovery program..; to test your plan using a worst-case scenarios.., Keep the DR-Plan documents updated.

Search template @
http://www.scribd.com
http://www.docstoc.com/
http://iase.disa.mil/index2.html
http://www.elitetele.com/Disaster-Recovery/
https://www.sans.org/reading-room/whitepapers/recovery/disaster-recovery-plan-strategies-processes-564 
http://www.isaca.org/Groups/Professional-English/business-continuity-disaster-recovery-planning/Pages/ViewDiscussion.aspx?PostID=72
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Gerald Connolly earned 1000 total points (awarded by participants)
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Hopefully you already have a Business Continuity Plan for how the business will survive a disaster (Fire, Flood, Power, telco etc)

Your DR plan as Madunix has already listed, should just be part of that, but the important part is RPO/RTO as this will drive how and why you execute your BC plan.

If your business will lose millions of dollars a minute (as a Bank or stockbroker might) then your RPO/RTO will be a very small amount of time (This is the very expensive end), but if your business can survive for a month with minimal cost then your plans will be much different (this is the inexpensive end)

You cannot divorce the IT requirements from the business requirements, its the business that drives how the IT DR plan works.

Run through some scenario's  - what happens if:
1) some or all of the power sockets in your computer room fail
2) some or all of the power sockets for your users fail
3) power to the floor
4) power to the building
5) Computer room/floor/building Floods?
6) computer room/floor/building Fire?
7) All Telco links go down
etc etc

What you end up with is not a nice easy plan, it gets messy and there is no one case fits all as your business requirements are unlikely to be identical to any other business.

I recently had to write the BC plan for a 15 person HelpDesk imbedded in an organisation with 15 minute SLA's so we had to plan what would happen if the power failed to some or all of our desks - was there desk space elsewhere we could utilise? and could we transfer people there and get them up and running inside 15 minutes? how would we cope with a loss of the building, would we need to have people working out of their car using a laptop tethered to their phone to hit the SLA until others could to get to their DR locations and get up and running, on top of this we needed to spend $500 per person so that they could use a softphone client to connect to their call centre phone system, and we also needed to plan how we would notify the early shift (07:00 start) not to travel to the office and work from home etc etc etc.
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by:kurajesh
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Let me go through the above links in detail
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by:Gerald Connolly
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Lots of excellent advice
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