The Internet Data Center (IDC) is short←& > for IDC, which means that the tel↕  ₽ecommunications departm✔∑ent uses the existing Inte​>←rnet communication lines ≠♠and bandwidth resource✔♣≥s to establish a standardized tele↕♦communications professional-grad±©‍★e computer room environment, provi Ωπding enterprises and governments with a←&₩ll aspects of server hosting, leasinπ✔g, and related value-added↕®'™. Location service.

IDC business is accompanied by the de¶×©βvelopment of the Intern'™ et. Its function is to p$ ®rovide customers with da♠ασta storage, data backup, data exchang↕∑‌e and other services through IDC'♠®$;s rich IT basic res‌✔ources and a highly centrali₩αzed and standardized oper§♠ation management system. ♣×∑Customers can build the÷×™ir own information systems b♦±÷✘y renting IDC services. The basic f∞≥♣σorm of IDC services is t"±he rental of resources (including sπ♣pace, hosts, and bandwidth). With↕♠‍ the continuous develΩ​≠opment of customer needs, Ω✘βnew service models such as Ne&∞≤★twork Application Service (→♥×Application Service Provide₹™₩≈r, ASP for short) have emerged, w÷♠™hich can provide this₹‍ Enterprises with similar services are'•$ generally called IDC service providers£∏.

IDC hosting service is hosting serv‍>‌ice (server hosting service) or comp♣φuter room cabinet service, which m÷§©φeans that users have their own server a±ε£nd place it in the high standard com• ♥γputer room environment of the I↓≈"nternet data center, and acces∑↑♥₹s the Internet through high-s®"peed data ports. Maint↔∑enance is performed by the cu♥¥€stomer itself or remotely by ot← δ★her contractors. The IDC eq'∑uipment room provides a $¥↓standard cabinet with co∑×Ω←mmunication power supply and can store↔‌ a certain number of servers for u≤↔≈sers, and has supporting©$★ network resources, suc∏πγ↑h as switch ports and egre←Ω₽ss bandwidth. Users rent entire or &£π☆several cabinets to store servγ↕→ers, and rent network resources and ot>£φ£her supporting facilities in th↓∞e data center. The installation and deb÷‍©ugging of the server software are a ​≤↕ll done by the hosting company, and ☆∑≈$they are responsible for providin'←g fixed bandwidth and standard ∑♦maintenance services for the host₹λ♣π. The services include: f✔πree server monitoring service,©β¶ 24-hour telephone technical support÷¶ and so on.

IDC level definition: ®λT1 (basic), T2 (component ✔&redundancy), T3 (online mainten₩ ★‍ance fully redundant system)€±$α, T4 (fault-tolerant system)&®>

IDC service provider:

Telecom operator IDC: Ch¶ ¥™ina Telecom, China Un✔↑↓icom, China Mobile

Third-party IDC: Hanwei Commu♠​↑☆nications, GDS (Universal D↑πata), 21Vianet, HOGEN, Ch≈σina Enterprise Communic≤≤<ations

Sample illustration