Challenge and Opportunity of Cloud Computing
Online storage service The Linkup closed August 8, 2008 - 20,000 paying subscribers lost their data Coghead, a cloud vendor closed its business on Feb 19, 2009 - Customers need to rewrite their applications.
Challenge of Cloud Computing
- Availability
- Data lock-in
- Data Confidentiality
- Data transfer bottlenecks
- Performance unpredictability
- Scalable storage
- Bugs in large distributed systems
- Scaling quickly
The opportunity of Cloud Computing
- Multiple providers
- Standardization
- Encryption, VLANs, Firewalls
- FedEx-ing disks, reuse data multiple times
- Improved VM support, flash memory
- Invent scalable storage
- Invent Debugger using Distributed VMs
- Invent Auto-Scaler