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Chapter 4. Technology Previews
This section provides an overview of Technology Preview features introduced or updated in this release of Red Hat Ceph Storage.
Technology Preview features are not supported with Red Hat production service level agreements (SLAs), might not be functionally complete, and Red Hat does not recommend to use them for production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process.
For more information on Red Hat Technology Preview features support scope, see https://access.redhat.com/support/offerings/techpreview/.
OSD BlueStore
BlueStore is a new back end for the OSD daemons that allows for storing objects directly on the block devices. Because BlueStore does not need any file system interface, it improves performance of Ceph Storage Clusters.
To learn more about the BlueStore OSD back end, see the OSD BlueStore (Technology Preview) chapter in the Administration Guide.
Support for RBD mirroring to multiple secondary clusters
Mirroring RADOS Block Devices (RBD) from one primary cluster to multiple secondary clusters is now supported as a technology preview.
Erasure Coding for Ceph Block Devices
Erasure coding for Ceph Block Devices is now supported as a Technology Preview. For details, see the Erasure Coding with Overwrites (Technology Preview) section in the Storage Strategies Guide for Red Hat Ceph Storage 3.
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