Information Systems:System i Operations
Overview
This computer has had several different names. They may be used interchangeably here, and when looking up information on the internet. The names are AS/400, iSeries, System i, and just plain i.
Command line
A ‘command line’ allows you to key in commands or programs. Depending on where you are, it looks something like this –
Selection or command ===> ________________________________________________________________________________ _____________________________________________________________________________________
Or this –
Parameters for options 1, 2, 3 or command ===> ________________________________________________________________________________
Library List
Objects on the i are grouped together in ‘libraries’; which are similar to ‘directories’, or ‘folders’ on a PC, except have only one level. A ‘library list’ is like a ‘path’; it tells the operating system where to look for requested objects.
To see your library list, key in DSPLIBL and press enter.
- Libraries that begin with ‘Q’ are supplied by IBM. (It is a bad idea to start with ‘Q’ when you are building your own objects.)
- ‘QTEMP’ is only accessible by the current job, and will be deleted when it ends. Temporary files can be put here so that they do not have to be implicitly deleted at job end. If work files are put here, each job will have its own data; instead of data for multiple jobs getting mixed together.
- ‘UWDQSYS’ contains objects that we have created, and want available to all users and jobs. As it is first in the library list, we can have our own versions of system objects. For example, program QSTRUP is called by the IPL. We have made changes to it to start up all our applications. It exists in both UWDQSYS and QSYS. Because UWDQSYS comes first in the library list, our customized version is called.
- Each ASW company has its own data libraries – they are changed in the library list when you change companies (green in the following list).
- ASW programs that we change or fix are in XX2480BP (purple), so that they are called instead of the base ASW programs. To test programs without affecting production, we would insert the test library before XX2480BP.
- Base ASW program libraries begin with ‘A’ (original, from Europe) or ‘U’ (modified in the U.S. for North America), then the version number. Notice that subsequent versions are higher in the library list, so that the latest release of a program will be called.
Display Library List
System: BART
5=Display objects in library
ASP
Opt Library Type Device Text
UWDQSYS SYS uniPharm - Custom - System Objects
QSYS SYS System Library
QSYS2 SYS System Library for CPI's
QHLPSYS SYS
QUSRSYS SYS System Library for Users
QTEMP USR
UP1480BFVA USR ASW PRODUCTION DATA FILE LIBRARY
UP1480BS USR ASW system objects for environment UP14
XX1480BP USR ASW rel XX1:480B UWD Extensions (non AS
XX2480BP USR ASW rel XX2:480B object library
UP1480BP USR Aldon/CMS IBS/ASW450/UP1480B (PDN)
U480BP USR Aldon/CMS IBS/ASW450/U480B (PDN)
U480AP USR Aldon/CMS IBS/ASW450/U480A (PDN)
CVT454AP USR ASW rel A:454A Appl CVT object library
A454AP USR ASW rel A:454A object library
A453AP USR ASW rel A:453A object library
A452AP USR ASW rel A:452A object library
A450AP USR ASW rel A:450A object library
QGPL USR General Purpose Library
RCSUTILPRD USR RCS -- Utility Objects and Data -- Prod
UWDASWPRDD USR UWD -- Extensions - VA - Data
UWDASWPRDP USR UWD -- Extensions - Production -- Objec
TLABARCODE USR T.L. Ashford & Associates Barcode400
WEBPRDD USR Web -- Data -- Production
WEBPRDP USR Web -- Programs -- Production
UWDUTILPRD USR UWD -- Extensions -- Common Utilities -
UNIPHARMIT USR UniPHARM IT Tools -- Includes Source