2013 Fall Newsletter — Shadowbase Development Highlights

Binary NumbersIn 2013, Shadowbase Development and Delivery is focused on Release 5.010 for NonStop Shadowbase and Release 5.002 for Shadowbase for Open Systems (SBOS). Both releases are scheduled for General Availability in the fourth quarter of 2013.



Some highlights of the upcoming NonStop Release 5.010 include:

  • Shadowbase UNDO was extended to handle NonStop SQL/MX tables as well NonStop Enscribe and SQL/MP tables. Shadowbase UNDO allows changes to a file or table to be rolled back, leaving the file or table in its original state prior to the roll-back. This feature is very useful when an application bug corrupts part of a database, or an operator accidentally re-runs a job that causes file/table data corruption.
  • A new mode of replication of Enscribe Entry-Sequenced files was added. NonStop Shadowbase replication can now optionally replicate Enscribe Entry-Sequenced files using unstructured access to allow exact replication of source to target Enscribe Entry-Sequenced files (Shadowbase technology builds the data blocks in memory and flushes them to disk to preserve the data block formats and record ‘key’ values/positioning).
  • Shadowbase DDL Replication was extended to include SQL/MP tables and has been significantly enhanced to provide both better performance and coordination on the target system.
  • Shadowbase FetchSource processing was extended to include Enscribe files. For NonStop TMF compressed UPDATE audit events, this feature retrieves the missing parts of the UPDATE event from the source record or row image.
  • Shadowbase Enscribe Compare was enhanced to further reduce false positives by re-reading mismatched records on the target system to help account for replication latency delay.
  • SOLV Loading was extended to include SQL/MX source tables with the new SOLVMX program.

Some highlights of the upcoming Shadowbase Open Server (SBOS) Release 5.002 include:

  • Shadowbase for Open Systems includes a new option that allows log messages to be collected in a DOC and replicated to other systems. This functionality, coupled with a user-exit available from Shadowbase Support, allows SBOS logs to be replicated to a NonStop system and sent to EMS to facilitate central monitoring.
  • SBPERF, our communications performance analyzer, now ships with Shadowbase for Open Systems install packages.
  • Shadowbase ON ERROR processing was significantly enhanced, providing much more flexibility in handling errors by configuration and significantly reducing the need for user exits.
  • Shadowbase for Open Systems now supports replication to Teradata databases.
  • Replication to DB2 target databases was extended to additional targets and no longer requires the installation of ODBC drivers. Contact Shadowbase Support for more information.
  • Shadowbase for Open Systems now supports 64 bit source collection for Microsoft SQL Server.

Looking forward, we are very excited to begin a beta test this winter of our first release for synchronous replication, NonStop Shadowbase ZDL, with a Controlled FCS Availability release slated for 2014. This future release is a major advance towards avoiding any data loss even in the event of catastrophic data center failure, and is a stepping stone to providing collision avoidance in active/active architectures.

For Open Systems, we are adding a significant performance enhancement with batched transactions and the capability of replicating from Oracle via transaction logs, giving you the choice of using either our existing trigger-based replication solution or the new log source replication solution. We also are extending the interprocess and communication message sizes to 64k to improve overall thruput.

As always, please keep us abreast of your future technology direction, needs, and wants in the data replication, data integration, and data synchronization space so we can plan to meet them accordingly.


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