Bit Mask Options

Use this example to aid in calculating bit-mask option hexadecimal values. Each SCSI device is enabled by a “1” in its corresponding bit position. As illustrated in Fig- ure 3-1, dev_enable=05 enables driver registration of the devices at SCSI IDs 0 and 2.

bit position

SCSI ID

 

15141312

111098

7654

3210

0, 2

 

0 0 0 0

0 000

0000

0101

converted

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

binary-to-hex

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

= 05h

 

 

 

 

 

 

0

0

0

5

 

 

 

 

 

 

 

 

 

 

Figure 3-1. Bit Position

Sample load Command

The following command is a sample load command with no option switches (loaded from drive A):

load a:\scsi\aic7870

Slot values that already have another registered device do not appear on the screen. Only the slots available for use by the host adapter appear when this command is entered. If an error message appears as you attempt to load the driver, refer to “Troubleshooting for NetWare” found later in this section.

The following command is a sample command loading the aic7870.dsk driver with command line options (loaded from drive A):

load a:\scsi\aic7870 verbose=y slot=22

Using startup.ncf and autoexec.ncf

The startup.ncf and autoexec.ncf files contain a set of commands that are executed at server start-up. The startup.ncf file contains commands to load the disk driv- ers. Once startup.ncf loads disk drivers, control is passed to the autoexec.ncf file to complete the boot pro- cess. For additional information on the startup.ncf and autoexec.ncf files, refer to your NetWare documentation.

To automatically load the aic7870.dsk at server start-up, the startup.ncf must contain a load command line that specifies the location of the driver on the hard-disk drive, any available options (see “Using the load Command Line Options” found earlier in this section), and the slot number (see “Calculating the Slot Number” found earlier in this section).

NOTE: To load the driver from your hard-disk drive, the aic7870.dsk driver and aspitran.dsk module must be copied from your NetWare 3.12 or 4.x driver diskette to a directory on your hard-disk drive (usually, the server's start-up directory [for example, c:\nwserver]).

The syntax to load the aic7870.dsk driver is:

load [pathname] aic7870 [options] slot=x

For example, the command line to load the driver from the c:\nwserver directory, with the verbose= option on, and a slot number of 16 follows:

load c:\nwserver\aic7870 verbose=y slot=16

NOTE: For each Adaptec 78xx host adapter installed, a separate load command line must be included in the startup.ncf file. The slot number (slot=) identifies the specific adapter.

To modify the startup.ncf file, follow these steps:

1.Type install at the NetWare prompt, and press <Enter>.

2.Select the appropriate menu choice that allows you to edit the startup.ncf file.

3.Make the necessary changes. When you are fin- ished, press <F10>.

Using SCSI Devices

The following sections provide procedures and tips on the following topics:

Booting from a SCSI device

Formatting media

Using removable media

Using NetWare-tested and -approved drives

Using the NetWare tape backup utility

Using a CD-ROM drive with NetWare

Optimizing performance

Installing and Configuring SCSI Drivers

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Dell 2100/200, 2100/180 Bit Mask Options, Sample load Command, Using Scsi Devices, Load pathname aic7870 options slot=x

2100/180, 2100/200 specifications

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