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Summary

In this chapter, you learned:

  • The rbd command manages RADOS block device pools, images, snapshots, and clones.

  • The rbd map command uses the krbd kernel module to map RBD images to Linux block devices. Configuring the rbdmap service can map these images persistently.

  • RBD has an export and import mechanism for maintaining copies of RBD images that are fully functional and accessible.

  • The rbd export-diff and the rbd import-diff commands export and import RBD image changes made between two points in time.

Revision: cl260-5.0-29d2128