Eucalyptus, the academic project from Professor Rich Wolski at UC Santa Babara, is an open-source software infrastructure for implementing "cloud computing" on clusters. The current interface to Eucalyptus is compatible with Amazon's EC2 and S3 interfaces.
Today, Amazon announces Elastic Block Store(EBS). This is the final missing piece in their cloud computing offering.
RightScale wrote two very good blogs explaining EBS:
Clearly, RightScale has been testing EBS for quite a while prior ASW announced persistent storage support back in Apri.
Amazon S3 has been out for a while. And the competition is heating up in the storage as a service market.
S3 in general:
- 99.9% service level guarrantee (only have had SLA recently since Oct. 8th, 2007)
- no worry of hardware failure, data redundancy
- one and only one master secret key. I would like to be able to create separate secret key for different applications so if one application got compromised, other applications won't be compromised
- can't control bandwidth overage. Can be a real problem if your competitors are leeching your S3 bandwidth that you pay for every bit