Berkley’s Reliable Adaptive Distributed System’s Laboratory recently released a publication outlining challenges in cloud computing. The document (PDF) is here Above the Clouds: A Berkeley View of Cloud Computing.
They compare a number of services (including Amazon EC2 and Google AppEngine) and have identified a number of obstacles and opportunities within the cloud vendor space. Some of these are quite difficult problems to solve, but all provide wonderful opportunities to software vendors.
Additionally, they define “what is cloud computing?” with a reasonable amount of rigour, which allows better decision making to be made as to whether an application should be deployed into a ‘cloud’ environment.
| Obstacle | Opportunity | |
| 1 | Availability of Service | Use Multiple Cloud Providers; Use Elasticity to Prevent DDOS |
| 2 | Data Lock-In | Standardize APIs; Compatible SW to enable Surge Computing |
| 3 | Data Confidentiality and Auditability | Deploy Encryption, VLANs, Firewalls; Geographical Data Storage |
| 4 | Data Transfer Bottlenecks | FedExing Disks; Data Backup/Archival; 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; Bulk use sales |
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