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IBM ANNOUNCES NEW VERSION OF AWARD-WINNING DB2 DATABASE FEATURING ENHANCED PERFORMANCE AND DATA AVAILABILITY

 SAN FRANCISCO, March 16. /PRNewswire/ -- IBM Programming Systems today announced DATABASE2 (A) (DB2) (A) Version 3, a new version of its award-winning mainframe relational database that provides new capabilities in the area of client/server computing and enhancements to data availability and system performance.
 DB2 is the Multiple Virtual Storage (MVS) mainframe version of the DB2 relational database family, which provides users with the security, integrity, and other industrial strength features required to protect valuable business data in mainframe, midrange, client/server and local area network environments.
 In related announcements today, IBM introduced DB2/6000 (A), a client/server relational database for Advanced Interactive Executive (A) (AIX) (A), IBM's version of the UNIX (B) operating system, and Distributed Database Connection Services/6000 (A), which provide connectivity between DB2/6000 and the other members of the DB2 family.
 "These DB2 family announcements show our continuing commitment to client/server computing and to the Information Warehouse framework as a means of addressing the increasing challenges of accessing, using, and managing data across an enterprise," said Richard Belles, director of Enterprise Data, IBM US.
 DB2 Version 3 Client/Server Enhancements
 DB2 Version 3's client/server enhancements include multi-site update, which allows users at multiple locations to access and update data within the same unit-of-work. Multi-site update capability is provided through IBM's Distributed Relational Database Architecture (A) (DRDA) (A), an architecture for providing connectivity between relational databases that is supported by many leading software vendors.
 Multi-site update is an architected implementation of Distributed- Unit-of Work (DUOW), a process defined in DRDA to ensure data recovery if there is a system failure before distributed updates are completed. Prior to Version 3, DB2 was able to access and update only a single remote location within a unit of work.
 IBM plans to provide support for DUOW in other members of the DB2 relational database family: DB2/2 (A) for Operating System/2 (A), DB2/6000 (A), Structured Query Language/Data System (A) for Virtual Machine and Virtual System Extended mainframe systems, and OS/400 (A) Database Manager for midrange systems.
 Also new in the client/server area for DB2 Version 3 is a significant increase in the number of concurrently active distributed connections. Version 3 permits up to 2,000 such connections, an upper limit designed to make DB2 an attractive choice in wide-area network configurations.
 Version 3 also has added support for IBM's Data Propagator (A) Version 1 Release 2, which allows for "reverse propagation" of data from DB2 to IMS. With this enhancement, changes made to data in either IMS or DB2 can be automatically propagated to the other database management system to ensure data integrity.
 Data Availability Enhancements
 DB2 Version 3 provides enhanced availability through partition independence, which allows users to work on one partition of a table space or index space without locking other partitions.
 Independent partitions also enable maintenance to be performed on a single partition, instead of an entire table or index space. Large single-utility jobs can be divided into smaller ones and processed concurrently. And, different utilities can be run on different partitions simultaneously, without disrupting each other.
 DB2 Version 3 also exploits the Asynchronous Data Mover Facility of IBM's new Enterprise System/9000 (A) (ES/9000) (A) processors by more efficiently moving large amounts of data between central and expanded storage, thus freeing up more processor resource for customer workloads.
 With this facility, customers may see improvements of up to 20 percent in elapsed time for selected query applications in DB2 environments.
 Performance Enhancements
 Data performance has been enhanced through the use of parallel I/O processing. DB2 Version 3 can reduce query response time, especially for queries accessing large amounts of data, by initiating parallel I/O operations for multiple partitions of a table space.
 Price/performance enhancements to DB2 Version 3 include the implementation of data compression. Data compression makes it possible for less data to be moved between central storage, expanded storage, disk storage, and tape, thereby increasing hardware storage efficiency while improving response time.
 A new hardware-based data compression function integrates high-speed compression hardware into IBM's new ES/9000 model processors, announced on February 9. Hardware-based compression incurs less overhead than software compression, and provides better price/performance.
 DB2 Performance Monitor Statement of Direction
 As relational database technology grows in capacity and capability, there also is the requirement for a timely, accurate performance monitoring and analysis tool.
 The DB2 Performance Monitor (A) Version 2 Release 1 performance analysis tool will enable the user to understand and manage the performance of DB2. It provides an online monitor, interactive report generator, and background and foreground reporting environments. It also provides the capability to produce reports that monitor the activities of DB2 in a distributed environment.
 This enables workstation users, or those on LANs, to work with applications and data bases on their own workstations or to access data from larger mainframe databases, including those in different operating environments.
 Availability
 First customer shipments of DB2 Version 3 will be made by June 25 to an already selected set of customers participating in a validation program. General availability will be announced at a later date.
 DB2 is developed at the IBM Programming Systems Santa Teresa Laboratory in San Jose, Calif.
 (A) -- Indicates a trademark or registered trademark of the International Business Machines Corporation.
 (B) -- Indicates registered trademark of UNIX Systems Laboratories Inc.
 -0- 03/16/93
 /CONTACT: Steven Malkiewicz of IBM, 415-545-2866 on March 16, or 914-642-5449 after March 16/
 (IBM)


CO: International Business Machines Corp. ST: California IN: CPR SU: PDT

AH -- NY053 -- 6628 03/16/93 14:38 EST
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Date:Mar 16, 1993
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