10 Best Data Center Security Tips You Should Know

The most expensive thing in this entire world is data center security. And data centers are the places where a large amount of crucial data is stacked. So protecting it from any potential breach and keeping it accessible 24/7 is a crucial duty of any data center owner or provider. So, in this article, we are going to know about some of the most important aspects of data center security.

Data Center Security Tips

Choosing a Location that is Secure

It’s extremely important that you choose a location that is completely free of airport landing paths, power plants, flood plains, earthquake fault lines, chemical facilities, natural and man-made disasters, etc. Another solution is to create an underground data center.

Underground data centers are much more secure and safer than normal ones. But in underground data centers, cooling systems need to be implemented properly as it can cause huge issues if not done well.

There are two main places where the underground data centers are set up: one is in a cave and another one is in a mine. Generally, mines are better than caves as caves lack normal airflow. But in mines also, real-time air quality monitoring needs to be done properly to make it a secure place for the data center.

Availability of Redundant Power Supply

Availability of redundant power is a must when it comes to data centers. Because you won’t want your customer’s business to stop because of a power failure. Make sure a secondary power source is set up in case of any power cuts. Using online electrical backups like UPSes will also help.

Secondary Internet Connection

Apart from a secondary power source, a secondary internet connection should also be in place to avoid any downtime due to internet connectivity issues at any point in time. Having redundant internet helps during internet outages due to trucks striking poles or buried cables get cut.

Automatic Hardware Failover

Availability of redundant server hardware like switches, UPSes, HVAC, Routers are also needed to keep things running in a data center. Missing it can hurt badly even if other measures like cooling, redundant internet, and power supply is taken correctly.

Don’t Forget Physical Security

Taking physical security measures is as important as keeping other things in place. In past, we have seen incidents like a multi-year legal saga between Google and Uber where the former Google engineer Anthony Levandowski pleaded guilty for stealing crucial data from Google’s servers and giving them to the largest cab company Uber.

To avoid happening such incidents in your data center, you need to make sure that all the physical security measures are taken properly. The data center needs to be protected from any external attacks, any theft of hardware, overheating, and humidity fluctuations.

Applying Patches to Systems ASAP

WannaCry attack is a big example of overlooking the latest updates and patches. A whooping 230,000 PCs got affected by this virus. Microsoft had patched it before the attack, but the owners of those PCs didn’t apply it to their machines. As a result, they either lost their data completely or lost money to recover the data. So, applying the latest system updates and security patches is as important as making the data center secure physically. Overlooking it can cause big breaches.

Segmenting the Network of the Data Center

Hackers can easily get access to data once they get access to a network. So, making separate segments of the data center network can be helpful. Isolating the whole network into different segments can protect other servers in case a specific machine gets compromised.

Conclusion

In this day and age of data, your role as a data center organization is to always make sure the data you have is always protected and always accessible irrespective of any natural disaster, technical fault, power cuts, internet outages, etc. And to do that, you have to take all these security measures mentioned in this article seriously.

Otherwise, a single mishap can shatter your reputation permanently. So, it’s better to look at all these things before something goes wrong in your data center.

3 Data Center Networking Tips You Should Know

Data center networking is a very complex arrangement of network devices including switches, interfaces, and networks, etc. that interconnects various nodes to form a large network is known as a data center. With having so many resources like network and storage, the data center also has a communication network.

Where DCN plays a significant role, it must have to be enough efficiency to control so many networks ( even 1000) at a single time because, in the ongoing days, the pretension of cloud computing is growing so high. But somehow interconnection network bounded it on these days.

Data Center Networking Types

There are so many types of data center networks, to know some of them to read the whole article carefully.

Three-Tier Data Center Network

This three-tier data center network has three layers: access, aggregate, and core layers. It is structured as tree-based. There is a direct connection between the edge layer switches and the lower layer. In short, every layer is with multiple layer switches through the server. There is also a connection between the data center and the internet through the core layer. But having all these things, this three-layer data center network can’t make it able to control the increasing demand for cloud computing.

One of the main problems for this issue is scalability. Also, this three-layer data center network needs a bluffy level of topology, which is too expensive and power-consuming. There are also so many significant problems for this issue like fault tolerance, oversubscription, cross-sectional bandwidth, and many more.

Fat Tree Data Center Network

One of the most critical issues of the three-tier data center network is oversubscription, which this fat-tree data center network can reduce. It also can minimize the cross-section problem. Its network also has three layers like a three-tier data center network like access, aggregate, and core layer. But it is entirely different from that three-tier data center network; it has much more network connection than a three-tier data center network.

It’s a different type of architecture where it is made of K pods. These K pods have so many types of servers like k/2 aggregate, switches, (k/2)2 server, and k/2 access layer. Here you can see a connection between core switches and aggregate switches. This fat tree DCN gives you a 1:1 oversubscription ratio, which is far better than three-tier DCN. But at last, there are also some problems in fat-tree DCN like scalability.

Dcell

This type of data center network is a little bit different from others. Here you can see the server is connected directly to another server. The Dcell server is decorated with many types of Network interface Cards. Here in this data center network, all higher-level cell has so many lower layer cells. A basic unit in this data center network is cell0, and it has one commodity network and n servers.

You can understand the calculation like this cell1 will contain k=n+1 cell0 cells. With all these things, this can be considered as high-quality structural robustness and scalability. But in the last, it also has some problems in terms of network latency, and another one is cross-section bandwidth.

Other Types of Data Center Network

Scaffidi, BCube, Jellyfish are some of the popular data center networks. Every data center network has its type of function.

What are the Challenges?

Among all of the data center networks, there is the main problem which is scalability. After the arrival of the cloud paradigm, DCNs need so many nodes, even up to 1000. With this problem, another one is cross-section bandwidth. In all of that DCNs, there is some problem if something is good in a DCN, then another thing is worst in that.

Interpretation About the Performance of Dcns

Till now, we have discussed three main types of DCNs. The fat-tree data center network has low latency than the other two data center networks named Dcell and a three-tier data center network, but where Dcell can solve scalability, it has the problem of cross-section bandwidth. So you can see that every data center network has various types of problems and the solution of another’s problem solution.

The Energy Efficiency of Data Center Networks

The importance of the energy requirements and environmental impacts is increasing day by day. For the present day, one of the significant problems for the ICT sector is the efficiency of energy. According to a report in 2010, around 15.6 billion kWh energy was used by the ICTs. It is expected to increase by 50% in the following years.

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