IBM Db2 pureScale Feature enhancements

Db2 11.5.5 continues to build on Db2 pureScale Feature support and provides several enhancements.

Attention: Db2 pureScale® features included in Db2 11.5.5 are available for non-containerized systems only.

The following table displays a list of the new Db2 pureScale Feature enhancements in 11.5.5:

Table 1. Db2 pureScale Feature enhancements in 11.5.5
Enhancement	Description
Automated periodic cluster topology verification	Cluster topology verification which focuses on the setup of cluster member in both peer domain and IBM® Storage Scale clusters as well as quorum configuration will be performed daily and automatically to ensure the cluster is healthy. Alerts will be generated automatically if conditions or best practices are not met.
Db2 Lightspeed RDMA ping	A smarter, faster, and more comprehensive Remote Direct Memory Access (RDMA) connectivity validation among all RDMA capable adapters in a Db2 pureScale cluster. This enhancement can be performed either prior to a Db2 installation via the `db2prereqcheck -adapter_list` option, or after an instance setup via the `db2cluster -verify -req -rdma_ping` option. The improvement is available by default once the cluster is committed to the new Db2 level.
Support for Linux® on IBM Z® with Red Hat® Enterprise Linux (RHEL) 7.7	With Db2 11.5.5 Fix Pack 1 (V11.5.5.1), Db2 pureScale has extended support to Linux on IBM Z with RHEL 7.7 and RoCE as the high speed interconnect network among members and CFs. Certain restrictions apply. For more information, refer to Installation prerequisites for the Db2 pureScale Feature (Linux on IBM Z).