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DATA CENTRE MANAGEMENT


"Data Center" is a facility that centralizes an organization’s IT operations and equipment, and where it stores, manages, and disseminates its data. Data centers house a network’s most critical systems and are vital to the continuity of daily operations. Consequentially, the security and reliability of data centers and their information is a top priority for organizations.

Although data center designs are unique, they can generally be classified as Internet or enterprise (or internal) data centers. Internet-facing data centers usually support relatively few applications, are typically browser-based, and have many users, typically unknown. In contrast, enterprise data centers service fewer users, but host more applications that vary from off-the-shelf to custom applications.

An effective data center operation is achieved through a balanced investment in the facility and equipment housed. The elements of a data center breakdown as follows:

  • Facility the location and white space, or usable space, that is available for IT equipment. Providing around the clock access to information makes data centers one of the most energy consuming facilities in the world. A high emphasis is placed on design to optimize white space and environmental control to keep equipment within manufacturer-specified temperature/humidity range.
  • Support infrastructure equipment contributing to securely sustaining the highest level of availability possible. The Uptime Institute defined four tiers data centers can fall under with availability ranging from 99.671% – 99.995%. Some components for supporting infrastructure include:
    • Uninterruptible power sources (UPS) battery banks, generators, and redundant power sources
    • Environmental control computer room air conditioners (CRAC), heating, ventilation, and air conditioning (HVAC) systems, and exhaust systems
    • Physical security systems biometrics and video surveillance systems
  • IT equipment actual equipment for IT operations and storage of the organization™ data. This includes servers, storage hardware, cables, and racks, as well as a variety of information security elements such as firewalls
  • Operations staff to monitor operations and maintain IT and infrastructural equipment around the clock
Data centers have evolved significantly in recent years, adopting technologies such as virtualization to optimize resource utilization and increase IT flexibility. As enterprise IT needs continue to evolve toward on-demand services, many organizations are moving toward cloud-based services and infrastructure. A focus has also been placed on initiatives to reduce the enormous energy consumption of data centers by incorporating more efficient technologies and practices in data center management to minimize environmental impact. Data centers built to these standards have been coined green data centers.

Data Centre Tiers

Whilst no down-time is ideal, the tier system allows for unavailability of services as listed below over a period of one year (525,600 minutes):
  • Tier 1 (99.671%) status would allow 1729.224 minutes or 28.817 hours
  • Tier 2 (99.741%) status would allow 1361.304 minutes or 22.688 hours
  • Tier 3 (99.982%) status would allow 94.608 minutes
  • Tier 4 (99.995%) status would allow 26.28 minutes
The difference between 99.671%, 99.741%, 99.982%, and 99.995%, while seemingly nominal, could be significant depending on the application.



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