what is Datacenter?
A data center is a specialized infrastructure to house computer systems, networking equipment, and associated components used for storing, processing, and distributing large amounts of data.
The key components in datacenters are server racks, networking racks, backup diesel generators, modular UPS systems, cooling system includes air cooled chillers, air handling units, exhaust fans
& Firefighting system comprises of hydrant and sprinkler firefighting systems supported by electrical jockey pumps, electrical sprinkler pumps and diesel generator pumps, pre-action system and VESDA & Stringent security access control system will be accommodating at all areas.
Datacenters are significant energy consumers, due to massive expansion of datacenters around the world. Hence great focus on energy efficiency and sustainable practices are need for the date.
Datacenters plays a significant role in social media data processing, modern business operations and scientific research applications, cloud services, IoT applications and AI applications.
Types of Datacenters
The tier classification of data centers was developed by uptime institute, which is recognized globally.
The data centers are classified into 04 tiers , by considering the factors like levels of redundancy , fault tolerance and expected uptime and annual downtime.
Tier-1 :
A data center with a basic capacity with single path for power and cooling, and no backup components. This tier has an expected uptime of 99.671% per year &annual downtime of about 28.8 hours
Tier-2 :
A data center with redundant capacity components with single path for power and cooling, and backup components. This tier offers an expected uptime of 99.741% per year &annual downtime of about 22 hours
Tier-3 :
A data center with two or more paths for power and cooling systems, and redundant systems that allow the staff to work on the setup without taking it offline. This tier has an expected uptime of 99.982% per year&annual downtime of about 1.6 hours
Exclusive Dual power source provision for IT related equipment’s like server racks with 24×7 availability
Tier-4 :
A data center with two or more paths for power and cooling systems i.e. independent power supply provision for IT racks & independent power system provision for mechanical cooling systems.
This tier is more reliable as completely fault tolerant site infrastructure along with redundancy for all components
This tier comes with an expected uptime of 99.995% per year&annual downtime of about 26.3 minutes
Summary:
1.Usually tier-3&4 data centers are more reliable and customers feel safe for their data storage. The construction and operational cost are in higher side as reliability and availability are higher.
2. The tier classification shall not include network connectivity & security measures of data centers.