After you select your resource sets and IAN drivers, and specify network addresses and the number of communication buffers, ELSGEN will automatically choose a configuration ( " \ setting for each configurable item you selected. Whenever .~.. / possible, ELSGEN will choose the default option (option 0).
In most cases, the automatic selection should be acceptable.
When to reject the automatic configuration
In only a few instances will you need to reject the ELSGEN configuration.
With IBM PC Network Adapters
Some of the configuration options for the IBM PC Network Adapter, for example, are for the standard AT bus adapter, and other options are for the Micro' Channel adapter. You must make sure the selected option is appropriate for the adapter being installed in your file server.
If you select a resource set for your file server, ELSGEN will list only compatible options. That is, if you are installing a PS/2 file server and you choose the corresponding
resource set for your PS/2 file server, ELSGEN will select only options that are compatible with the Micro Channel bus. The setting ELSGEN automatically selects-which may or may not be option O-should be acceptable.
With the IBM ASYNC driver
42 File Server
If you are using one of your serial ports for remote communication, you must select the option for the IBM ASYNC (COMl/COM2) driver in ELSGEN.' The
configuration of that serial port must indicate that the port is to be used exclusively by the ASYNC driver.
550/Rev1.0
550/Rev1.0
With IBM PS/2 file servers
A program on the REFERENCE diskette that comes with IBM PS/2 file servers lets you configure all of the internal hardware. If you change any of the default settings when you run this program, the automatic configuration ELSGEN provides may not match the settings you made. In this case, you must either rerun the program on the REFERENCE diskette to match ELSGEN, or reject ELSGEN's settings and change them to match those set with the REFERENCE diskette program.
Obviously, you cannot decide whether to accept or reject an automatic configuration until you see what it is, but applying the explanation above to your situation should indicate whether the default configuration is suitable.
On the File Server Configuration Worksheet, record whether you intend to accept or reject the automatic configuration.
The next two headings contain information about choosing your own configurations for the IAN drivers and resource sets. If you need to reject the automatic configuration, you will be referred to these headings when you get to that step in the Installation Steps section of this manual.
File Server 43
Customize resource set configurations
44 File Server
If you reject the automatic configuration ELSGEN provides, a list will appear on the computer screen containing the possible configurations for the resource you are configuring.
Each combination of hardware settings (such as mterrupt line, I/O address, and DMA) is numbered. These numbers,"
called the "configuration option numbers," are used as a convenient, shorthand way of referring to the corresponding combination of hardware settings.
Some of the possible resource set configuration options may not be listed as only those options that are compatible with previously selected hardware configurations are shown. For example, if you have already selected a configuration for some other piece of hardware in the file server and that configuration specified the use of memory address COOOh (RAM = COOO:Oh), any subsequent listing of available configurations for other hardware will not include those options that use memory address COOOh.
If you are not certain which configuration option to select, consider the following points:
• Choose the default configuration (usually option 0) if it is available. If you choose the default configuration, you will not have to change any of the settings on the
hardware (assuming the corresponding hardware is still at the factory default setting).
• If you are choosing a configuration for a parallel printer port (LPT1, LPT2, etc.), refer to the file server's Guide to Operations or similar manual for information about which I/O address to select.
550jRev1.0
Customize LAN driver configurations
550/Rev1.0
If you reject the automatic configuration ELSGEN provides, a list will appear on the computer screen containing several combinations of hardware settings (interrupt line, I/O address, DMA, memory address). Each combination is assigned a number, called the "configuration option number."
LAN driver configuration options are numbered starting with zero (0), the default setting for any particular network board.
Some of the possible LAN driver configuration options may not be listed, as only those options that are compatible with all previously selected hardware configurations are shown.
For example, if you have already selected a configuration for some other piece of hardware in the file server and that configuration specified the use of interrupt request line 2 (IRQ = 2), any subsequent listing of available configurations for other hardware will not include those options that use interrupt line 2.
If you are not certain which configuration option to select, consider the following points:
• Choose the default configuration (option 0) if it is available. By choosing the default configuration, you eliminate the need to change any of the settings on the board (assuming the board is still at the factory default setting).
• Pay particular attention to any information given in addition to the actual hardware settings. A configuration might only be valid for certain variations of boards (such as primary or alternate) or for a board that will be inserted in an 8-bit slot.
File Server 45