Acer 08P4100 Manuel D’Utilisation

SCO OpenServer

Manual No. 775079

5-9

This section provides guidelines for the system administrator to follow 
during the installation of SCO UNIX to prepare it for using the Mylex Disk 
Array Controller as a secondary controller. The following guidelines will 
focus mainly on the important steps for installing the Mylex Disk Array 
Controller SCO UNIX drivers. For detailed information about the operating 
system installation, consult the SCO UNIX documentation.

If a tape drive connected to the controller is being used for installation, make 
sure that the tape drive is set to SCSI ID 2, that the configuration utility has 
been run with the tape drive installed, and that the configuration has been 
saved. The same is also true when using a CD-ROM, except the CD-ROM 
needs to be set to SCSI ID 5. 

The procedure for installing the Mylex Disk Array Controller as a secondary 
controller under SCO UNIX using Mylex drivers varies slightly depending 
on the type of device that is installed as the primary controller:

• If the primary controller is IDE or EIDE, start at Step 1.

• If the primary controller is SCSI, start at Step 6.

1. Make sure the following SCO SCSI modules are enabled before 

attempting to install the Mylex controller SCO mdac drivers into an 
existing SCO system.

:

SCSI  disk

:

SCSI  tape

Srom :

SCSI  CD-ROM

2. Change to the sdevice.d subdirectory

3. Enable the SCO UNIX SCSI modules by editing the files: Sdsk, Stp, 

and Srom. Change the second field on all three files from N to Y.

Example of Sdsk file before edit (where x could be any digit): 

Sdsk N x x x x x x x x

After edit:

Sdsk Y x x x x x x x x