Information Technology Reference
In-Depth Information
Along with compute and networking, storage is abstracted from the cloud tenants. The
concept of object storage has emerged from the need to store, query, and serve enormous
amounts of data stored by millions of tenants on the public clouds. This flat storage model
treats every piece of data as an object that carries a unique ID with which it can be pulled
from the underlying storage through object storage APIs available with every major public
cloud provider and a host of object storage API products for private cloud providers.
Chapter Essentials
Elastic, Ubiquitous, and Multitenant Characteristics of the Cloud The cloud could be
thought of as a large pool of compute, storage, and networking resources that can be sliced
and diced with tenants only paying for what they consume. Resources can be easily scaled
up/down, and applications do not need to be aware of the physical hardware they're running
on. Several users can be accommodated in the same data center with segmentation imple-
mented so that data and applications of a user are not visible/consumed by other users.
Low Startup Cost You pay only for the resources you consume. With limited users initially,
the costs are low, and they grow as users increase.
Rapid Deployment Tenants need to engineer the deployment scripts, which can then be
used to rapidly deploy applications on new VMs and manage updates without disrupting
service.
Flat Object Storage In contrast to the hierarchical address space of traditional file sys-
tems, the object storage concept of the cloud consolidates all available storage and puts
data on a flat address space. Every element of data is treated as a unique object with its
own identifier, and additional operational/business information is attached to the object
as metadata.
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