Just yesterday, the IBM Systems lab in Tel Aviv released version 12.2.1 of IBM FlashSystem A9000 and A9000R. Although the new version number is not of a major release, this version brings a range of new functionalities and enhancements to the A9000/R all-flash product line, including important fixes of previously known issues, as well as fixed of issues that were recently discovered.
So here we go with the new functionalities and enhancements of this new milestone release:
Cross-generation IBM Hyper-Scale Mobility
Non-disruptive volume migration from IBM XIV Gen3 systems to IBM FlashSystem A9000 and A9000R systems, by using the IBM Hyper-Scale Mobility feature. The supported XIV Gen3 version is 11.6.2.a or later.
Support for IBM Storage Utility Offering
Support for IBM Storage Utility Offering through the newly introduced model U25, which is based on model 425. For more information about model U25, see the Deployment Guide on Knowledge Center. For more information about the storage utility offering, see the IBM Storage Utility Offering marketing website.
Support for FC NVMe-ready hardware
Starting from version 12.2.1, models 425 and U25 include hardware that is ready to support Non-Volatile Memory Express® (NVMe) protocol over Fibre Channel (FC) network infrastructure. New adapters that can support NVMe are included in the grid controllers of these models (425 and U25) to enable NVMe protocol connectivity after a supporting software version is released.
Until such software version is released, these NVMe-ready systems can be used for FC connectivity, eliminating the need for hardware refresh after the NVMe protocol connectivity option becomes available. After the NVMe option becomes available, either NVMe or FC connectivity can be used.
Increased number of simultaneous mirroring connections
Version 12.2.1 supports an increased number of synchronous and asynchronous mirroring connections. Up to 3072 synchronous mirroring connections and up to 1024 asynchronous mirroring connections can be established. A total of 3072 connection resources are available for either synchronous or asynchronous connections. Each synchronous mirrored volume and each synchronous consistency group consumes a single connection resource. Conversely, each asynchronous mirrored volume and each asynchronous consistency group consumes 3 connection resources.
Latency monitoring enhancement
Network latency and internal system latency can be monitored separately, significantly simplifying root cause analysis of latency issues. Storage administrators can easily determine whether a latency issue occurs in the storage system, or outside the storage system. This new monitoring option is available from both the CLI and management UI.
Volume and consistency group snapshot enhancement
Existing volume snapshots or consistency group snapshots can now be refreshed over asynchronous remote mirroring on either the Primary system, Secondary system, or both, by using the snap_remote command.
A9000R enhancement: non-disruptive addition of grid elements
Any model 425 of IBM FlashSystem A9000R that is running software version 12.2.1 or later can scale-out capacity, performance and host connectivity by the non-disruptive addition of grid elements (flash enclosures and grid controllers).
For the full list of fixes in this release, see the change log on Knowledge Center:
That's about it, and for a non-major version - that's quite plenty! :-)