[one-users] "Hybrid Cloud" - OpenNebula/Eucalyptus/etc.
Philipp A. Hechter
kv3981 at gmail.com
Wed Mar 17 11:37:53 PDT 2010
I'm having a hard time in understanding some parts of cloud computing,
esp. what the exact definition of a "Hybrid Cloud" is. If you guys could
help me with the following questions, that would be great. Thanks.
* Both OpenNebula and Eucalyptus have so called cloud controllers. Why
is there a dedicated machine to handle the cloud? Can it be on the
same host as a node?
* OpenNebula supports 'hybrid clouds'. What exactly is the
definition of a hybrid cloud?
o Is it only a common interface for completely different
o Or is it possible in a hybrid cloud to move images between
different clouds? For example, move a KVM/QEMU image to
Amazon EC2 with OpenNebula?
o If it is the former one (just a common interface), how is
it possible to "scale out" if the images are incompatible?
* Eucalyptus says it is EC2 compatible, but it seems to me it it
only API-compatible, not image-compatible.
o Can one move a Amazon image AMI to a eucalyptus cloud?
I hope some of the questions are not too off-topic, but I had no idea
who else to ask...
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