Data center is a centralized repository of data to provide data access and management services for large number of users from anywhere in the world.
Data Center can be imagined as place where large number of powerful computers, storage devices, communication devices, communication channels and software are used to provide reliable and efficient data access and storage services, normally, through internet from anywhere.
For example, we can think about Google having data center which maintain large volume of data and provide the access of this data to large number of users from anywhere in the world.
Types of Data Center
§ Private Data Center
§ Public Data Center
Private Data Center:
§ Private Data Centers are implemented by particular organization for data management and access of data to their authorized users.
§ Private Data Centers are also known as Enterprise Data Center e.g. Banks’ Data Centers
Public Data Centers:
§ These data centers provide the data management and access services to large number of organizations.
§ Public data center are normally provide low cost services as setup cost are shared among large number of organizations.
§ However, These data centers are more open to data security risks than private data centers.
Features of Data Centers:
§ Data Security
§ Available of Data
§ Electrical and Power System
§ Data Centers maintain large number of servers, large bandwidth channels and large volume of storage capacity thus data centers are big in size for data management capability.
§ Data Centers normally employ various techniques and software to provide high security of data.
Availability of Data:
§ Data Centers provides round the clock availability of data and services from anywhere.
§ Data Centers provides both physical and logical security to data.
§ Physical Security is achieved through 24*7 CCTV monitoring, Smart Card Phones, Security Guards, Biometrique devices.
§ Logical Security is achieved through Access Management and Perimeter Security.
Electrical and Power System:
§ A data center provides the power for continuous operation and uninterrupted power system(UPS)
Constituents of Data Centers:
§ Network Servers
§ Network equipments like channels, devices.
§ Network Management Software
§ Power Backup equipments like Diesel Generators
§ HVAC System
§ Fire Extinguisher System
§ Physical Security System like CCTV, guards, smart card activated doors.
§ Raised floors
§ Multiple optical fibre
§ Network Security Software etc.
Uses of Data Centers:
Data centers are now a days are used by almost all types of sectors, but primarily these are used by Banking, Retails, Aviation and Telecom sectors which provide the services to their customers from anywhere and on 24*7 basis.
§ It helps to provide fast and reliable data access services round the clock by continuously monitoring the working and performance of data managed by data centers.
§ It provides Web hosting and also the monitoring of websites for round the clock availability; for reliable and efficient access of sites to their users.
Backup and Restore:
§ It helps to provide automatic backup of managed data and also automatically restore the data destroyed accidentally or intentionally, by using the backup data.
Intrusion Detection System:
§ It is an art of detecting inappropriate, incorrect and unauthorized activities on network.
§ This is primarily a security system which helps to provide data access to authorized persons only and protect the data from malicious activities.
Storage on Demand:
§ It helps to provide the required storage capacity to organization to maintain their data volume in online manner, which help to provide reliable and robust data management services.