When disaster strikes, how do you keep your business running? Find out how to prepare in this video.
- We need to now talk about a concept called BCP, business continuity plan. What we're talking about with a business continuity plan is the continuation of the business. How do we keep the business alive in an extreme disaster scenario? So disaster recovery applies to anything, right? You had a hard drive fail, you had a server crash, the network is down. Those are disaster recovery plans. Business continuity plan, you can think of it a little differently. Imagine if a tornado dropped on top of your main business building and you go in on Monday morning and it's just rubble, how do you keep the business going? What do you do next? So some of the concepts that are in disaster recovery are here too, but they're also larger scale concepts we need to think about. One is of course alternate sites, we've talked a bit about alternate sites. Here the concept is not just an alternate place where our servers are, it's an alternate place where everything is, right? And the difference between cloud and offline or localized compute is that with the cloud, your people don't work there. Let me make that clear. Your people don't work where the stuff actually is, it's in the cloud, it's somewhere else, right? So I don't have to worry about if my building is destroyed in some way replacing the servers, I'm now worried about giving my users a place to work where they have internet access. Now the difference is if it's a private cloud that is at your facility, and now all the old thinking that we have for business continuity planning comes into play. We've got to have an alternate site for workers and to set our cloud back up and get it back up and running again. So alternate sites are key, within clouds there are several ways we can do that, and I'll show you an example here in a few moments. We need continuity of operations, so that means we can keep doing what the business does, making phone calls, sending and receiving emails, creating a product, shipping a product. All of these things have to be maintained. Our BCP should include procedures to allow that to happen. We need connectivity. Now this is wildly important. If we're using public cloud for a lot of our business operations. We need to be able to connect to the internet so that we can continue those operations. Edge sites, these are your other locations, right? So you might have a primary business location, but then you have edge sites where the stuff really happens. You know, I worked at one point in a company that was located in Columbus, Ohio, and we had about 4,500 employees that worked at that campus, but we had another 29 locations around the United States. Guess what, all the real work that made money actually happened at those other 29 locations. The people that were there at the headquarters were doing the businessy stuff. In other words, there was no direct sale that ever happened at the headquarters, there was no product creation that ever happened at the headquarters, all that happened there was business management. So the edge sites, the remote sites were the ones getting the work done. Now, another concept of edge sites is something we see in the world of IoT, Internet of Things, which is very popular in a lot of the cloud providers now as well. They provide special services for it, and that is the concept of the edge for IoT. When we're talking about that, it's the place where the sensors or actuators reside. Remember a sensor listens to, reads from the environment, and actuator interacts with, does something to the environment, so maybe it turns a machine on or off, for example. Well, the issue is how do we keep that edge up and running in a disaster scenario? And then there's the equipment itself, physical hardware. Again, with the cloud, that's a public cloud, you don't worry about that equipment, but if it's a private cloud, you have to think about how do I have mirror copies of that equipment so I can stay up and running. There's availability, resources being there when you need them, which links back to connectivity and equipment as well. So those two really come together to give you the availability that you require. Then there are partners and third parties. What are the companies do you work with, and how are they considered in your business continuity plan? Do you have a way to maintain communications with them and keep those partnerships going? And finally, you need your service-level agreements for business continuity planning and high availability. So your SLA should include this. Do you notice we keep coming back to service-level agreements. They're simply the documents that say what you should be getting, okay? And so we want to make sure business continuity is part of what we should be getting. Now let's take a look at one way that using public cloud providers, we can have alternate sites. We can have another place where our stuff is waiting and ready for us to operate if we need to. So we're looking here at the AWS Management Console in the AWS Cloud. And if you scroll down to the section on Networking & Content Delivery, you will notice you have something here called a VPC, which is a virtual private cloud. Now the virtual private cloud is where all your stuff goes. Think about this name, virtual private cloud. It's not a private cloud, it's a public cloud, but it's a virtual private cloud 'cause it's just mine. Nobody else can put any stuff in there, right? So there's always one VPC by default associated with every AWS account, but you can create more than one. And what I want you to notice right here, notice this VPC, the only one that exists is located in Ohio. Well, I can actually create more VPCs and I can locate them elsewhere. Now what I mean by located in Ohio, is the physical location where all the devices will be is in that Eastern US region and it's there physically somewhere. So if I put it in a different US region, then I have a different physical location effectively building an alternate site by selecting the right location for my VPC where I'm going to build out my mirror image of my production VPC. So I click Launch VPC Wizard, and we'll go ahead and say we want a VPC with a single public subnet, but you could have multiple subnets if you desire. We'll give the IP address block that we want to use. I'm just, for the most part, accepting the defaults except one thing right here, the availability zone, I'm going to put it in us-east-2c since I'm in us-east-2a, I know and the other that gives me a different physical location, right? So make sure that you're putting your alternate site in a different availability zone to be moving to a different physical location. And then we simply click on Create VPC. And it creates it very quickly. And now what I launch new instances, I simply say I want to place them in this alternate VPC. So I create instances that duplicate and mirror everything that I have in my production VPC. So I then have a mirror alternate site copy that I can utilize.
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