Sanjeev, I was talking to Prasanna earlier regarding testing various parts of the S3 Object Store integration. I've been testing on and off myself using devcloud but have yet to get a snapshot to work. It looks like devcloud version of XCP at least doesn't have /opt/xensource/sm/ so its failing to store the snapshot. See this issue here: https://issues.apache.org/jira/browse/CLOUDSTACK-3229
I'm going to try to find some hardware to test with KVM but not sure how soon I can do it. I'm interested to hear regarding how far you have tested different hypervisors with S3 and which areas you have concern with or need further testing. Tom. -- Cloudian KK - http://cloudian.jp/ S3 REST API Compliant Cloud Storage with Cloudian®