DL/2 is a data migration and
application transparency solution that enables the rapid migration of
data from IMS/DB to DB2® without application changes. DL/2 customers not
only benefit from the capabilities that DB2 brings to their data in
terms of open data access and 24 x 7 availability, they also realise
the cost and resource savings that come from supporting a single
mainframe database environment. DL/2 is an established solution that has
proven itself around the world in many different industries.
Even though
most organizations have chosen DB2® as their strategic mainframe
database, many still retain IMS/DB® in support of existing applications.
For these organizations, IMS/DB often represents an island of technology
that is expensive to run and support, with a data storage architecture
that locks data away from other applications and from the business.
Moving IMS/DB based applications to DB2 is often dismissed because the
cost and risks of data migration and application modification are simply
too great.
Circle developed DL/2 to
overcome this IMS migration challenge. DL/2 provides a low
risk/accelerated delivery approach to migration that has been proven in
many companies around the world. The difference is in the approach. With
DL/2, application programs remain unchanged, and that means full
protection of your application investments. Powerful mapping and
migration tools get you to DB2 quickly, one IMS/DB database at a time.
Applications continue to issue IMS/DB requests as before but where
requested data has been migrated to DB2, DL/2 retrieves it and delivers
it back to the application as if it came from IMS/DB. The increased
overhead of this transparency layer is typically less than 10% in CPU
time with no appreciable increase in elapsed transaction time.
Once all data is migrated
to DB2 the IMS/DB licence may be cancelled, along with licences for any
related tools. Applications continue to run through DL/2’s transparency layer,
or may be modified over time to run natively against DB2.
For more information on DL/2 please contact us here.
DL/2 Datasheet (PDF)
Case Studies
Our Customers