1. Most of the HaaS and IaaS providers offer four nines (99.99%) of SLAs on uptime42. Due to customer demand many cloud providers are seriously considering providing “five nines” SLAs later this year.
2. Amazon EC2 charges for incoming bandwidth, whereas GoGrid does not.
3. Amazon uses Xen virtualization.
4. Amazon officially only supports RHEL 5.1+.
5. Amazon charges $.10/VM per hour for compute capacity $.15/Gb per month for data storage43.
6. Amazon EC2 provides its own firewall and networking configuration. Standard HPC networking configurations do not translate well to EC2.
7. Google App Engine datastore has to be BigTable format which is quite different from the relational database format.
8. Typical admin to user ratio in an enterprise environment is 1 to 100. Conversely, the typical admin to user ratio in the public cloud environment is 1 to 20,00044.
9. Some vendors provide you with a single bill for all your cloud computing services instead of separate bills from various cloud vendors. This centralized/unified billing model can result in economies of scale that lowers per-unit costs.
2. Amazon EC2 charges for incoming bandwidth, whereas GoGrid does not.
3. Amazon uses Xen virtualization.
4. Amazon officially only supports RHEL 5.1+.
5. Amazon charges $.10/VM per hour for compute capacity $.15/Gb per month for data storage43.
6. Amazon EC2 provides its own firewall and networking configuration. Standard HPC networking configurations do not translate well to EC2.
7. Google App Engine datastore has to be BigTable format which is quite different from the relational database format.
8. Typical admin to user ratio in an enterprise environment is 1 to 100. Conversely, the typical admin to user ratio in the public cloud environment is 1 to 20,00044.
9. Some vendors provide you with a single bill for all your cloud computing services instead of separate bills from various cloud vendors. This centralized/unified billing model can result in economies of scale that lowers per-unit costs.
Very informative and impressive post you have written, this is quite interesting and i have went through it completely, an upgraded information is shared, keep sharing such valuable information. Business Process Management
ReplyDelete