1. Release Notes for Unbreakable Enterprise Kernel Release 4 Update 2
  2. New Features and Changes
  3. Notable Changes

Notable Changes

  • Ceph is no longer under technology preview

    Ceph presents a uniform view of object and block storage from a cluster of multiple physical and logical commodity-hardware storage devices. Ceph can provide fault tolerance and enhance I/O performance by replicating and striping data across the storage devices in a Storage Cluster. Ceph's monitoring and self-repair features minimize administration overhead. You can configure a Storage Cluster on non-identical hardware from different manufacturers. Ceph for Oracle Linux is based on the Ceph Community Jewel release (v10.2.2). It includes the Object Store, Block Device, Storage Cluster, and Object Gateway components of Ceph. For more information, see the Ceph Storage for Oracle Linux Release 2.0 Release Notes.

  • sif driver 1.0.0.1 added

    The sif (Scalable Interface) driver module that enables PCIe-based Infiniband HCAs (Host Channel Adapter), such as the Oracle Dual-port QDR IB Adapter M4 and the Oracle Dual-port EDR IB Adapter, has been added in this update.

  • qed and qede 8.7.1.20 drivers added

    The qed and qede driver modules that enable QLogic FastLinQ 4xxxx Ethernet devices, have been added in this update.

  • bnxt_en driver 1.2.0 added

    The bnxt_en driver module that enables Broadcom BCM573xx network devices, has been added in this update.

  • RDS performance enhancements and bug fixes

    A large number of performance enhancements and bug fixes have been included in this release for RDS (Reliable Datagram Sockets). Of particular note are the following fixes and enhancements:

    • Enhancement patches have been applied for RDS to support the larger message size catered for by Infiniband. This change improves RDS performance over Infiniband transport by increasing the RDS fragment size while maintaining backward compatibility for previous RDS versions.

    • Performance improvements were made to the rds_fmr_flush workqueue to take advantage of targeted CPU scheduling on NUMA-aware systems.

    • Old code and unused features within the code were removed to ease the maintenance burden, tighten up the code and improve code security.

    • Several patches were merged into the code to improve diagnostics and supportability.

    • Improvements were made to the RDS code for better compatibility with Infiniband HCA drivers.

  • Important NVMe driver updates were applied and tested

    The Non-Volatile Memory Express driver was updated and patched with many new fixes that were of particular interest to existing Oracle customers. Several rigorous tests were run against the updated driver.

  • DTrace enhancement to export perf_events tracepoints as SDT probes

    Upstream Linux perf_events tracepoints are now automatically exported as SDT probes for DTrace.