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2 The z/VSE PIE Strategy
The IBM VSE team have coined the acronym "PIE" to scribe a strategy of "Protect, Integrate,
and Extend" for z/VSE:
Ø Protect existing customer investments in core z/VSE programs, data, equipment, business
and IT skills, plus business processes, and end user training. This is achieved by
modernizing applications by extending z/VSE resources to the web; exploiting the latest
in IBM servers and storage; and enhanced z/OS affinity.
Ø Integrate z/VSE with the rest of IT, based on open and industry standards via the use of
VSE connectors, SOA Web Services, and IBM middleware.
Ø Extend solutions by using Linux on System z to exploit existing core VSE investments
and introducing new applications and workloads in a low cost, low risk, fast time-to-
market manner.
2.1 Pieces of the PIE
The following sections describe how the PIE strategy can be used to future-proof z/VSE-based
systems.
2.1.1 Protect
On facet of the protection part of the z/VSE PIE comes in the form of subsystems such as CICS
Transaction Server (TS), TCP/IP, and VTAM which facilitates the interoperation and affinity
with z/OS. Another facet is the enhanced hardware support that z/VSE provides which enables
the exploitation of devices such as the DS8000 or the encryption capabilities of the TS1120 tape
subsystem.
2.1.2 Integrate
Connectors enable the i n tegration of VSE systems with other network-enabled systems and
provide real-time access to VSE resources (like VSAM, POWER, DL/I, Librarian, ICCF,
console) from remote platforms. VSE programs can also access remote data like databases or flat
files. In addition there are a set of utilities for download, that helps you to manage your VSE
system. Table 4 in the appendices describes these connectors and utilities.
Connectors are the building blocks used to connect different applications on heterogeneous
platforms and operating systems. z/VSE connectors are based on J2EE standards and use
WebSphere Common Connector Framework. They consist of:
Ø
Client components written in Java: meaning they can run on any Java-compatible
platform, such as Linux running on the IBM System z
Ø
Server components that run on the VSE host
IBM-2007-04569-E-01
©2007 Sine Nomine Associates
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