difference between object storage and block storage in Openstack
What is the difference between object storage and block storage??
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What is the difference between object storage and block storage??
Swift is the Openstack project for object storage. Object Storage in general (and swift specifically) provides large scale, cheap, and durable storage. Swift is not used like a traditional hard drive - Object storage is all about relaxing some of the constraints of a POSIX-style file system. The access to it is API-based (and the API uses http). This is a good idea as if you don't have to provide atomic operations (ie you can rely on eventual consistency), you can much more easily scale a storage system and avoid a central point of failure.
nova-volume and Cinder are for block storage attached to a virtual machine. Where Swift isn't a filesystm, nova-volume is - designed to provide "mountable" devices.
Asked: 2012-12-05 05:32:01 -0500
Seen: 215 times
Last updated: Dec 05 '12