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iSeries Architecture: Fundamental Strength of the iSeries
30
iSeries Handbook
Database
DB2 UDB for iSeries offers state of the art database functions and open systems, standards
based technology, while providing the maturity, stability, and ease of use that has become the
trademark of the iSeries server. DB2 Universal Database (UDB) for iSeries is fully integrated
into the OS/400 operating system software. It is not a separate product.
DB2/400 has been enhanced over the years to include many new and emerging standards.
The integrated database is a full function database with features competitive to other widely
used databases. The fact that the DB is integrated allows the operating system to control
some of its management functions and makes it easier to maintain than competitive DB from
other vendors reducing the need for a dedicated Database Administrator. Its security
functions are integrated into the operating system. These functions allow a better security
model than other DB where additional tools may need to be purchased to provide these
functions.
The SQL Client Integration API allows providers of gateways and client/server solutions to
integrate their products with DB2 UDB for iSeries. Many iSeries customers have the need for
applications that not only access DB2 UDB for iSeries data, but also access data on other
databases platforms such as Oracle or Sybase.
See “DB2 Universal” on page 455.
2109 Switch
Smarter sharing of
device(s) with multiple
hosts
Smarter and more
efficient than a hub
Requires QuickLoop
RPQ
Fibre
Fibre
Tape
3580 Exx
3584
hub/switch
hub
iSeries
IBM ESS
(Shark)
Tape
iSeries
hub
up to 10km
up to 500m
3534 Managed Hub
Limited switch, smarter than a regular
hub
Sharing of single device (per zone)
with multiple hosts
Fibre Channel cables
Point-to-point without other
components
Fibre
Fibre
Tape
3580 Exx
3584