Chapter 5. Technology previews

Newly implemented Crimson-OSD of the core Ceph object storage daemon (OSD) component replaces ceph-osd

With this enhancement, the next generation ceph-osd is implemented for multi-core scalability and to improve performance with fast network and storage devices, employing state-of-the-art technologies that includes DPDK and SPDK. Crimson aims to be compatible with an earlier version of OSD daemon with the class ceph-osd.

Object storage archive zone in Red Hat Ceph Storage

With this enhancement, the archive zone receives all objects from the production zones and keeps every version for every object, providing the user with an object catalogue that contains the full history of the object. This provides a secured object storage deployment that guarantees data retrieval even if the object/buckets in the production zones have been lost or compromised.

Protect object storage data outside of a production cluster using per-bucket enable and disable sync to an archive zone

As an administrator, you can now recover any version of any object that has existed on the primary site from the archive zone. In the case of data loss or a ransomware attack, valid versions of all objects are accessible, if needed.

Balancing Red Hat Ceph Storage cluster using read balancer

With this release, to ensure that each device gets its fair share of primary OSDs so that read requests get distributed across OSDs in the cluster, evenly, read balancer is implemented. Read balancing is cheap and the operation is fast as there is no data movement involved. Read balancing supports replicated pools only. Erasure coded pools are not supported.