© Copyright IBM Corporation, 2010
What is the Portable Application Solutions Environment or PASE for i?
PASE for i is an integrated runtime for porting UNIX applications to IBM i.
Who uses PASE for i?
PASE for i is designed to extend the solutions portfolio of IBM i by attracting UNIX solutions
developers to share in the success of the IBM i marketplace. Many portions of IBM i use PASE
for i including the IBM Technology for Java virtual machine.
What industries are targeted with PASE for i?
PASE for i attracts applications that complement the application portfolio of IBM i, serving
industries such as wholesale, retail, industrial, banking and finance. The first applications ported
using PASE for i were in business intelligence and supply chain segments.
How do solutions developers benefit from PASE for i?
PASE for i adds another porting option for solutions developers who want to share in the success
of the IBM i marketplace. By providing a means to significantly cut porting time, PASE for i can
improve the time to market and return on investment for solutions developers.
What kind of companies use PASE for i applications?
IBM i attracts customers who want an integrated system that is built for business, offering broad
application solution choices for their industry. PASE for i is for companies who want to run
UNIX
applications
without the complexity of running UNIX, and in a manner that is consistent
with the integrated value proposition and low cost of ownership of IBM i.
How do customers benefit from PASE for i?
Customers benefit from the continued vitality of the solutions portfolio of IBM i, with new
applications in supply chain, customer relationship management, business intelligence and
e-commerce segments complementing their existing core business and ERP applications.
Does PASE for i run AIX or other UNIX operating system on IBM i?
No, PASE for i is not designed to run a UNIX operating system on IBM i. Instead, PASE for i
uses a subset of the AIX runtime for UNIX applications. The AIX or Linux operating system
may be run in a logical partition (LPAR) on Power Systems servers.
Is PASE for i an operating system?
No. PASE for i is part of IBM i and integrates with its database, file systems, security and
operations.
Does PASE for i require customers to have UNIX or AIX skills to run applications?
No. Customers running a PASE for i application do not need UNIX or AIX skills. PASE for i
applications look to customers just like any other IBM i application.
Does PASE for i include an application development environment?
Applications can be compiled within PASE i using the IBM XL C and C++
compilers.
Compare PASE for i with Linux or AIX in a logical partition on Power Systems
IBM Power Systems supports Linux and/or AIX in a partition. PASE for i differs from these
solutions in that PASE for i applications do not require the overhead of managing an additional
partition. PASE for i applications run within IBM i jobs using IBM i databases, file systems,
system management, save/restore, user profiles, and security.
How is PASE for i available?
How does PASE for i provide a runtime for UNIX applications?
PASE for i provides an application runtime that is based on a broad subset of AIX technology.
PASE also takes advantage of the common investment in PowerPC processor technology. The
PowerPC processor switches from its normal iSeries mode into pSeries mode in order to execute
an application in the PASE runtime.
If PASE for i is a runtime for UNIX applications, why do solutions providers still have to
port their applications?
Applications running in PASE for i need to be enabled to access DB2 Universal Database for
IBM i and integrated with IBM i security and operations, such as backup. The required porting of
application binaries is minimized, depending on the APIs used by the application.
Can the Oracle database be used with PASE applications?
No. PASE for i applications use either DB2 Universal Database for IBM i, MySQL, or the IBM i
Integrated File System, including Network File System (NFS).
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presented here to communicate IBM's current investment and development activities as a good faith effort to help with our customers' future planning.
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