Defining Cloud Computing
Cloud computing refers to both the applications delivered as services over the Internet and the hardware and systems software in the data centers that provide those services.
Top 10 Obstacles and Opportunities for Cloud Computing
| # | Obstacle | Opportunity |
|---|---|---|
| 1 | Availability/Business Continuity | Use Multiple Cloud Providers |
| 2 | Data Lock-In | Standardize APIs; Compatible SW to enable Surge or Hybrid Cloud Computing |
| 3 | Data Confidentiality and Auditability | Deploy Encryption, VLANs, Firewalls |
| 4 | Data Transfer Bottlenecks | FedExing Disks; Higher BW Switches |
| 5 | Performance Unpredictability | Improved VM Support; Flash Memory; Gang Schedule VMs |
| 6 | Scalable Storage | Invent Scalable Store |
| 7 | Bugs in Large Distributed Systems | Invent Debugger that relies on Distributed VMs |
| 8 | Scaling Quickly | Invent Auto-Scaler that relies on ML; Snapshots for Conservation |
| 9 | Reputation Fate Sharing | Offer reputation-guarding services like those for email |
| 10 | Software Licensing | Pay-for-use licenses |
Sometimes, sending the disks, or even the whole computer, is more effective than sending a lot of data by a network.
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