Infrastructure as a service (IaaS) is a standardized, highly automated offering in which computing resources owned by a service provider, complemented by storage and networking capabilities, are offered to customers on demand. (Gartner)
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Iaas allows you to scale your IT infrastructure with your needs. There is no need to buy expensive servers in advance in anticipation of a future needs for instance. As the need arises such the holiday season sales rush for an e-commerce store, the resources can be ramped up to fulfill the need at that time and then scaled back when that high activity period is over.
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Buying the latest hardware equipment and constantly keeping it updated is a thing of the past as with cloud infrastructure, you get the best equipment in the industry: the newest Intel processors, the most optimized RAM memory, petabit networking, SSD storage, arrays of GPUs, and even cloud programmable hardware.
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Upfront costs of buying equipment for a datatcenter and keeping all the hardware updated is completely removed in the IAAS scenario, where a monthly fee is the way forward to achieve cost efficiency. ​With the stakes so high, IAAS providers have the latest technology enabled for providing extremely high levels of security.
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ALIBABA CLOUD SERVICES
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Elastic Computing
Elastic Compute Service
ECS Bare Metal Instance
Elastic GPU Service
Simple Application server
Storage & CDN
Object storage Service
Data Transport
Cloud Storage Gateway
Networking
Virtual Private Cloud
VPN Gateway
Server Load Balancer
Security
Security Centre
Web Application Firewall
Cloud Firewall