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Chapter 2. Creating a Block Device Image
Before you can add a block device to a node, you must create an image for it in the Ceph Storage Cluster first. To create a block device image, execute the following:
rbd create {image-name} --size {megabytes} --pool {pool-name}
For example, to create a 1GB image named foo that stores information in a pool named swimmingpool, execute the following:
rbd create foo --size 1024 rbd create bar --size 1024 --pool swimmingpool
Note
You must create a pool first before you can specify it as a source.
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