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Comparison of cloud computing organizations
Online storage providers
There are many organizations that provide disk space on data centers using cloud computing principles. The billing model for disk space is based upon billing of utility services. These companies provide disk space usage in an elastic manner. The disk storage may be reduced or increased based upon customers requirements. Customer is billed only on the storage space that the organization has used. Such offerings of disk space usage in an elastic manner is called Storage-as-a-Service.The table below provides a comparison of Storage-as-a-Service providers based upon the price. There are many other factors which an organization needs to consider before selecting a Storage-as-a-Service vendor. These include ease of use, 24/7 availability, customer service, security of the data, and long-term stability of the vendor. However price remains an important criteria when evaluating cloud computing providers.
| Vendor | Usage | Data transfer out | Data transfer in | No of requests |
|---|---|---|---|---|
| Amazon S3 | $0.15 per GB | 0.17 per GB | no restrictions | $0.01 per 1,000 requests |
| AT&T Synaptic | $0.25 per GB | $0.1 per GB | $0.1 per GB | nil |
| GoGrid | $0.15 per GB | no restrictions | no restrictions | no restrictions |
| Rackspace | $0.15 per GB | no restrictions | no restrictions | no restrictions |
Amazons pricing above is for the lowest tier. For higher usage the prices go down. Pricing for first 50TB of monthly storage is $0.15 per GB. For next 50 TB of usage, price comes down to $0.14 . Price keeps reducing for other tiers. For the highest tier, for storage over 5000 TB, price comes down to $.055 per GB. In the same fashion, the data transfer out pricing gets reduced for higher tiers. For data transfer out greater than 10 GB per month, but less than 50GB, the charges are $0.130 per GB. At the highest tier of data transfer out (Over 150 TB per month) , Amazons pricing gets reduced to $0.100 per GB.
In GoGrids Cloud Storage, Initial 10 GB Cloud Storage is FREE
Online email Service providers
Online email hosting for business users is likely to grow at exponential rates from 2010 to 2012. Three of the largest software vendors compete directly with each other in this space - Google, Microsoft and IBM. Pricing of these three organizations is listed below.
| Vendor | Monhtly charge | Annual charge |
|---|---|---|
| Googles gmail | $4.16 per user | $50 per user |
| Microsoft Exchange Online | $5 per user | $60 per user |
| IBM LotusLive iNotes | $3 per user | $36 per user |