Small and mid-size companies often hear about the importance of having disaster recovery plan. But what is meant by disaster; recovery, etc.
We can say ‘disaster’ is used in ‘Disaster Recovery’ as anything that interrupts business as usual. Here are some examples:
- Your end-point device (PC, tablet, phone, printer) go down
- Infrastructure (Xfinity Wi-Fi Router; server; cabling) stops working
- Internet (e.g. Xfinitiy) goes down
- Power goes out
- Office burns down
Disaster Recovery Planning must address every possible such disaster and have a plan to recover from it.
So what’s ‘Business Continuity’, a phrase often used in tandem with Disaster Recovery? Business Continuity is the ultimate goal of all Disaster Recovery plans – that your organization will seamless recover from disaster with absolutely no down time, no disruption to business. To better understand this let’s define two very important terms used in Disaster Recovery – RPO and RTO.
Recovery Point Objective (RPO) refers to the point in time in the past to which data entered you will recover.
Recovery Time Objective (RTO) refers to the point in time in the future at which you will be up and running again.
Let’s say your hard drive crashes, you haven’t backed up for two days and it takes you a day to get a new hard drive, load everything and start working again. In this scenario, the RPO is 2 days (you lost two days of entered data) while the RTO is one day (took one day to get back up and running). Achieving Business Continuity implies these numbers are zero!
An important principle to achieve Business Continuity is the concept of ‘n+1’. Wikipedia defines n=1 as“N+1 redundancy is a form of resilience that ensures system availability in the event of component failure. Components have at least one independent backup component. “
Want to have Business Continuity? Have a ‘backup PC’. If yours goes down, just pick up the backup one. Your internet provider (e.g. Xfinity) goes offline. Have another provider (e.g. CenturyLink) and the kind of router that can seamless ‘fail over’ to the backup provider when the primary one goes down. Afraid the power might go off. Have your power generator ready to go…and so on.
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This article was written by Marc Farron, our IT Cybersecurity Specialist.
Marc helps clients increase revenue, reduce costs and become more secure by leveraging technology.
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