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March 18, 2014

Static SQL Support a Key Feature of DB2 Accelerators V4.1

Last fall IBM announced DB2 Analytics Accelerator (DB2 Accelerators) for z/OS Version 4.1. In contrast to previous releases, which supported a limited SQL syntax (and only for dynamic SQL), V4.1 enables a wide array of queries with static SQL support. I've written frequently about DB2 Accelerators, and from what I've seen on recent customer visits, I believe that the enhancements in V4.1 are contributing to increased adoption of this product.

Here's a quick list of other new features:

·         Support for EBCDIC and Unicode in the same DB2 system and accelerator.

·         Support for multi-row FETCH

·         Improved scalability workload balancing through automated routing, based on workload balancing information, that evenly distributes the workload across the attached accelerators.

·         Improved high availability through automated workload balancing failover support. If, for any reason, one accelerator is unavailable, queries are automatically rerouted to available accelerators.

·         Increased number of replication sources per accelerator: It's now possible to replicate from up to 10 different subsystems into a shared accelerator.

·         Better performance for incremental update through Instrumentation Facility Interface (IFI) filtering, which is designed to lower MIPS utilization and improve performance because fewer log records need to be processed by the capture component.

·         Richer monitoring: The accelerator now provides expanded information for monitoring applications with the IFI. The IFI makes this data available to software vendors who can leverage this broader information to better inform customers about the usage, execution and concurrency of queries as they are processed in the accelerator.

·         Significant enhancements to the High Performance Storage Saver (HPSS) solution:

o    Support to update historical read-only record through a stored procedure;

o    Support to restore individual partitions without requiring any outages;

o    The capability to enforce read-only state on a partition used by HPSS; and,

o    Backup image maintenance can be simplified by marking HPSS partitions as "undeletable."

·         Simplified maintenance and lower cost of operation. V4.1 now offers an automated NZKit Install that facilitates the fully automatic installation and activation of Netezza kits, with no firmware or operating system updates required.

·         Support for DB2 for z/OS version 11.

If you’re using this technology, please share some of your experiences, pros and cons, in comments.