Red Hat NETSCAPE ENTREPRISE SERVER 6.1 - INSTALLATION AND MIGRATION GUIDE Manual de usuario descargar pdf (Pagina 17)

- In contrast to regular emulators only the instructions are translated, not the entire

system, thus making it fast and flexible. The Lx86 software senses that it is executing

x86 code and translates it to PowerPC code at execution, and these instructions are later

cached ensuring that the translation process only has to take place once, further

reducing the drop in performance usually associated with emulation. Lx86 does not

support applications that access hardware directly, like kernel modules, or code that

makes use of SSE instructions.

- The product was at first marketed as System p AVE (System p Application Virtual

Environment) and was incorrectly reported as PAVE (Portable Advanced Virtualization

Emulator) in the press but the name has since changed to PowerVM Lx86. Lx86 is

based on the QuickTransit dynamic translator from Transitive, the same that Apple uses

for its Rosetta emulation layer that enables Mac OS X to run unmodified PowerPC

binaries on their Intel-based Macintoshes.

IBM HTTP Server

- IBM HTTP Server (IHS) is a web server based on the Apache Software Foundation's

Apache HTTP Server that runs on AIX, HP-UX, Linux, Solaris, Windows NT, and

z/OS.

- It is available for download and use free of charge but without IBM support.

- The HTTP server is also included in the IBM WebSphere Application Server

distribution packages.

- The default web console administration port is 8008.

DB2 Server

- DB2 is one of IBM's families of relational database management system (RDBMS) (or,

as IBM now calls it, data server) software products within IBM's broader Information

Management Software line.

- Although there are different "editions" and "versions" of DB2 which run on devices

ranging from handhelds to mainframes, most often DB2 refers to DB2 Enterprise

Server Edition or the top-of-the-line DB2 Data Warehouse Edition (DB2 DWE), which

runs on Unix (AIX), Windows or Linux servers; or DB2 for z/OS.

- Alongside DB2 is another RDBMS: Informix, which was acquired by IBM in 2001.

- An important feature of DB2 computer programs is error handling. The SQL

communications area (SQLCA) structure was once used exclusively within a DB2

program to return error information to the application program after every SQL

statement was executed. The primary, but not singularly useful, error diagnostic is held

in the field SQLCODE within the SQLCA block.

Web Graphical User Interface

- Power on wheels provides a Web GUI to ease access of the Power on Wheels functions

and functionality.

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Red Hat NETSCAPE ENTREPRISE SERVER 6.1 - INSTALLATION AND MIGRATION GUIDE Manual de usuario Pagina 17