Summary of changes

This topic summarizes changes to the 5.1.4 version of the IBM Spectrum Scale Erasure Code Edition.

The following changes are made in this release:

• RAS improvement for recovery group stops service when a disk hangs because of hardware failure. For more information, see What to do if a recovery group stops service when a disk hangs because of hardware failure.
• 3 node recovery groups are supported. For more information, see IBM Spectrum Scale Erasure Code Edition Hardware requirements and Recommendations.
• IBM® z16 is supported.
• ECE NVMe replace sends report error to the IBM z Support Element. For more information, see Physical disk procedures.
• Recommendations for NVMe drive replacement. For more information, see Planning for NVMe drive distribution on IBM Z.
• Readmit improvement to minimize performance impaction for suspend and resume node.
• Rebalance time optimizing and performance impaction improvements for user I/O.
• AU logging collocation strategy improvement for NVMe disk endurance.
• RHEL 8.6 support.