Section 4 describes how the i5 Server is
organized. It covers the concept of libraries, objects, library
list, and practically everything you need to know about files.
There is also a section on the System/36 Environment. If you are
working in a shop that still has S/36 code running (and there are a
lot of you), this section will help you understand how to use,
You cannot program a machine as complicated
as the i5 with your eyes closed,
IBM implemented a plan to make the i5 the "server of choice" for the Internet. If you don't currently have plans to connect your server to the Internet, you probably will change your plans in the future. We hope you will find these chapters useful when that time comes.
"If something can go wrong, it will," said
the immortal Murphy. This law is
And finally, you will find a glossary and an index at the end of the book.
This book doesn't attempt to replacindexe IBM
manuals. IBM manuals contain much more information on all topics,
but specific answers are sometimes more difficult to find. The IBM
manuals are at your disposal on the Internet, but this book
Section 1: Installation
Chapter 1: Getting Up and Running
The i5 server needs a certain amount of space as well as a special environment. Both must be provided for a successful installation. The place where you install the server is typically known as the computer room, although the machine can, in theory, be installed
Planning Physical Space
In most cases, you will have to make do with whatever space is available for the computer room in an existing building. Whether a building is in the planning stages or you have a choice among several rooms in an existing building, you should plan the location of your computer room
The Computer Room
The computer room doesn't have to be located near computer users because, in theory, users don't need access to the machinery. Users only need access to their own display
Computer Room Requirements
The computer room should have the following minimal attributes. The room should:
Although IBM says that carpets don't usually present a problem for the i5, you probably will want to remove all carpeting from the computer room. Static electricity accumulates in the bodies of people who walk on the carpet, and it is discharged when a person touches a metallic object—such as the computer. This
A raised floor gives you added protection against floods because the water will accumulate under it instead of on top of it. Flooding is not an
Leave It to the Specialist
Most details of the building of the computer room can (and should) be left to a specialist in such matters. This book doesn't attempt to offer guidance beyond the basics. Three other matters to consider are:
Laying Out the Computer Room
Unless you are an architect or an engineer, drawing the
First, draw the walls of the computer room on paper, using a scale that is easy to work with (such as 1 ft = 1 in, or 1:10 in the metric system). The scale should let you include the entire computer room on a single sheet of paper, yet occupy as much of the sheet as possible.
Next, cut rectangular pieces of cardboard (
Play with the cardboard pieces by placing, shifting, and arranging them in different ways on the drawing of the computer room until you find an arrangement that seems to work well. Only you can be the judge of this.
Now comes the interesting part. Get some masking tape and stick it on the actual floor of the computer room, to delineate the objects as you laid them out with the cardboard
Repeat this process as many times as needed. It is a lot of work, but it saves you from having to shift the actual machines after they